WO2006095759A1 - 接続ピンの形成方法,プローブ,接続ピン,プローブカード及びプローブカードの製造方法 - Google Patents
接続ピンの形成方法,プローブ,接続ピン,プローブカード及びプローブカードの製造方法 Download PDFInfo
- Publication number
- WO2006095759A1 WO2006095759A1 PCT/JP2006/304441 JP2006304441W WO2006095759A1 WO 2006095759 A1 WO2006095759 A1 WO 2006095759A1 JP 2006304441 W JP2006304441 W JP 2006304441W WO 2006095759 A1 WO2006095759 A1 WO 2006095759A1
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- WO
- WIPO (PCT)
- Prior art keywords
- contactor
- connection pin
- circuit board
- contact
- convex portion
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R3/00—Apparatus or processes specially adapted for the manufacture or maintenance of measuring instruments, e.g. of probe tips
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/073—Multiple probes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/073—Multiple probes
- G01R1/07307—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card
- G01R1/07342—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card the body of the probe being at an angle other than perpendicular to test object, e.g. probe card
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06711—Probe needles; Cantilever beams; "Bump" contacts; Replaceable probe pins
- G01R1/06716—Elastic
- G01R1/06727—Cantilever beams
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49204—Contact or terminal manufacturing
- Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
- Y10T29/49222—Contact or terminal manufacturing by assembling plural parts forming array of contacts or terminals
Definitions
- connection pin Method of forming connection pin, probe, connection pin, probe card and method of manufacturing probe card
- the present invention relates to a method of forming a connection pin for achieving electrical conduction between a main body member and an external member opposed to the main body member, and a connection pin and probe formed by the forming method.
- the present invention relates to a probe card for inspecting an electrical property of an object to be inspected and a method of manufacturing the probe card.
- Probe cards usually have circuit boards and contactors. A large number of probes are supported on the lower surface of the contactor facing the wafer, and the probe has, for example, a contact for contacting the wafer and a tip that supports the contact and is elongated, flexible and elastic. It consists of a beam with a Inspection of the wafer's electrical characteristics is performed by bringing the contacts of multiple probes into contact with each electrode of the electronic circuit.
- a support column 201 having a height is formed on the electrode 200a on the lower surface of the contactor 200, and the beam of the probe 202 is formed on the support column 201. It joined part 202a.
- the contactor 202b can move to the contactor 200 side, and a movable space for the contactor 202b is secured (see Patent Document 1).
- a concave digging 203 is formed on the lower surface side of the contactor 200 to secure a movable space of the contact 202b (see Patent Document 2).
- the circuit board is stacked on the contactor supporting the probe. Inspection of the electrical characteristics of the wafer is carried out by bringing a plurality of probes into contact with the electrodes of the electronic circuit of the wafer and applying an electrical signal for inspection to the electrodes of the electronic circuit through the circuit board and the contactor. .
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-215161
- Patent Document 2 Japanese Patent Application Laid-Open No. 2000-346878
- Patent Document 3 Japanese Patent Application Publication No. 10-506197 (FIG. 5) Disclosure of the invention
- the present invention has been made in view of the point of force, and can be mounted by a relatively simple technique, does not restrict the wiring design of the contactor, and secures a sufficient movable space for the contactor. It is an object of the present invention to provide a method of forming connection pins such as probes, connection pins formed by the method, and a probe card.
- Another object of the present invention is to provide a small probe card and a method for producing the probe card, which are easy to manufacture and easy to manufacture. Means to solve the problem
- the present invention for achieving the above object provides a connection connected to an electrode on the surface of the main body member in order to achieve electrical conduction between the main body member and an external member facing the main body member.
- a method of forming a pin comprising the steps of: forming a convex portion on the surface of a main body member; arranging a connection pin on the convex portion on the surface of the main body member; and bonding a bonding tool on the external member side. And pressing the back of the connection pin to the electrode on the surface of the body member while pressing the back of the connection pin to the electrode on the surface of the body member, with the contact point of the connection pin and the projection as a fulcrum And b.
- connection pin is a probe for detecting an electrical property of a test object, and the probe has a contact for contacting the test object;
- the external member is a test object, and the main body member is a contactor disposed to be opposed to the test object, the contact member being a subject of the contactor.
- the beam portion may be bent so that the contact element is inclined toward the object side with the contact point between the beam portion and the convex portion as a fulcrum while the rear portion of the beam portion is joined to the contactor.
- the beam portion of the formed probe is bent so that the contactor is inclined to the object side, a sufficient space for moving the contact between the contactor and the contactor can be obtained. Is secured. Also, while bonding the probe to the contactor using a bonding tool, Since the beam is bent, the probe can be easily formed and attached. Furthermore, since the beam portion is bent with the contact point with the convex portion as a fulcrum, the bending angle of the beam portion depends on the height of the convex portion, and the bending angle of the beam portion can be made constant. As a result, the height of the contact to the contactor can be made constant, and, for example, the movable range of the contact of a plurality of probes formed on the contactor can be made uniform.
- the position of the beam portion is not shifted backward when pressed by the bonding tool against the surface of the contactor on the side of the object to be inspected. It may have a step of forming another convex portion for pressing the rear end face.
- the position of the beam does not shift, so the bending position of the beam and the joining position to the contactor become constant, and the height of the contact at the tip of the beam becomes constant.
- the heights of the contacts in the plurality of probes joined to the contactors can be equalized, and the contacts of the respective contacts can be uniformly made to the object under inspection at a constant pressure.
- the connection pin includes a contactor for supporting the probe on one surface, and a circuit board facing the other surface of the contactor and electrically connected to the contactor.
- the main body member is the contactor
- the external member is the circuit board disposed with a gap from the other surface of the contactor.
- the convex portion is formed on the other surface of the contactor
- the connection pin is disposed on the convex portion on the other surface of the contactor, and a bonding tool for bonding is pressed from the circuit board side to the rear portion of the connection pin. While bonding the rear of the connection pin to the other surface of the contactor, bend the connection pin so that the tip of the connection pin is inclined toward the circuit board with the contact point between the connection pin and the convex portion as a fulcrum Moyo,.
- connection pin has a contactor for supporting the probe on one side and a circuit board facing the other side of the contactor and electrically connected to the contactor. It is used for a card,
- the said external member is the said contactor,
- the said main body member is the said circuit board arrange
- the contactor of a circuit board The convex portion is formed on the side surface, the connection pin is disposed on the convex portion on the contactor side surface of the circuit board, and the bonding pad for bonding is pressed against the rear portion of the connection pin.
- the rear of the connection pin The connection pin may be bent so that the tip of the connection pin is inclined toward the contactor with the contact point of the connection pin and the convex portion as a fulcrum while being joined to the surface of the plate on the contactor side.
- the main body member may be a package that covers an electronic device, and the external member may be a wiring board on which a package is mounted.
- the present invention according to another aspect has a contact for contacting an object to be inspected, and a beam portion supporting the contact at a tip end portion, for inspecting the electrical characteristics of the object to be inspected.
- the probe is supported by a contactor facing the object to be inspected, and is formed by the following method.
- the forming method includes the steps of forming a convex portion on the surface of the contactor on the side of the body to be detected, disposing the beam portion on the convex portion on the side of the surface to be inspected of the contactor, and bonding a bonding tool for bonding.
- the beam is pressed to the rear of the beam from the inspection body side, and while the rear of the beam is joined to the contactor, the contact is inclined toward the object side with the contact point between the beam and the projection as a fulcrum There is a process of bending the part.
- the rear portion of the beam portion of the probe is joined to the contactor, and the beam portion is bent so that the contact is inclined toward the object to be inspected. Therefore, between the contact and the contactor There is enough space for the contacts to move. According to the present invention, since it is not necessary to form a high supporting column for the probe or to form a digging as in the prior art, the probe can be attached with a simple technique, and the wiring of the contactor is limited. None been
- the present invention according to another aspect relates to a contact and a circuit in a probe card having a contactor supporting a probe on one side and a circuit board facing the other side of the contactor and electrically connected to the contactor. It is a connection pin that is placed in the gap between the substrates and that electrically connects the contactor to the circuit board, and is formed by the following method.
- the step of forming a convex portion on the other surface of the contactor, the connection pin is disposed on the convex portion on the other surface of the contactor, and the bonding tool for bonding is connected on the circuit board side. Press against the back of the pin and join the back of the connection pin to the other side of the contactor And bending the connection pin such that the tip of the connection pin is inclined toward the circuit board with the contact point between the connection pin and the projection as a fulcrum.
- the present invention according to another aspect provides a contact and a circuit in a probe card having a contactor supporting a probe on one side and a circuit board facing the other side of the contactor and electrically connected to the contactor. It is a connection pin that is placed in the gap between the substrates and that electrically connects the contactor to the circuit board, and is formed by the following method.
- the forming method includes the steps of forming a convex portion on the surface on the contactor side of the circuit board, arranging the connection pin on the convex portion on the surface on the contactor side of the circuit board, and bonding a bonding tool on the contactor side.
- connection pin The force is also pressed to the rear of the connection pin, and the rear end of the connection pin is joined to the contactor-side surface of the circuit board, and the tip of the connection pin is the contactor side with the contact point between the connection pin and the projection And bending the connection pin to be inclined.
- Connection pins which are formed by the following method. In the forming method, the step of disposing the package and the wiring substrate opposite to each other;
- connection pin Forming a convex portion on the surface of the package substrate side of the package, arranging a connection pin on the convex portion on the surface of the package, and pressing a bonding tool for bonding against the rear portion of the connection pin. And bonding the rear end of the connection pin to the electrode on the surface of the package, and bending the end of the connection pin toward the wiring board with the contact point between the connection pin and the convex portion as a fulcrum.
- the present invention according to another aspect is a probe card having a contactor disposed opposite to a subject to be inspected and a probe joined to a surface of the contactor on the side of the subject to be inspected, wherein the probe is A contact for bringing into contact with the body, and a beam portion supporting the contact at a tip portion, the rear portion of the beam portion is joined to the contactor, and the beam portion is the contact of the tip portion.
- the element is bent so as to be inclined toward the object to be inspected, and a convex portion is formed on the surface of the contactor on the object side to be in contact with the back surface of the bent beam portion on the contactor side.
- the rear portion of the beam portion of the probe is joined to the contactor, and the beam portion is bent so that the contact is inclined to the object side, so that the contact and the contactor are interposed. There is enough space for the contacts to move.
- the beam portion is disposed with the convex portion between the contactor and the contactor. The beam is bent so that the contact is inclined toward the object side with the contact point of the beam and the projection as a fulcrum while pressing the back of the beam to join the rear of the beam to the contactor be able to.
- the probe can be easily formed and attached.
- the bending angle of the beam portion depends on the height of the convex portion, and the bending angle of the beam portion can be made constant.
- the height of the contact at the tip of the beam can be made constant, for example, the movable range of the contacts of the probes formed in the contactor can be made uniform.
- Another convex portion for pressing the end face of the rear portion of the beam portion may be formed on the surface of the contactor on the side of the object to be inspected.
- the present invention according to another aspect is a probe card having a contactor for supporting a probe on one side and a circuit board facing the other side of the contactor and electrically connected to the contactor, A gap is formed between the circuit board and the circuit board, and in the gap there is provided an elastic connection pin for electrically connecting the contactor and the circuit board, and the connection pin has one end portion of the contactor It is joined to the other surface, and the other end is pressed and abutted against the contactor side surface of the circuit board.
- one end of the elastic connection pin is joined to the contactor, and the other end is pressed against the circuit board and abuts, so that, for example, the flatness and horizontality of the circuit board are low. Even when it is lowered, the strain of the circuit board can be absorbed by the elasticity of the connection pin, and the conduction between the circuit board and the contactor can be maintained. In addition, since distortion of the circuit board is absorbed by the contact pins, the horizontality of the contactor is maintained, and the inspection object can be properly inspected by, for example, each of a plurality of probes supported in the contactor plane. . And, since the pressing effect can be realized by the connection pins, the configuration of the probe card becomes simpler than in the past, and furthermore, the manufacture of the probe card becomes easy. Also, I do not take a place The probe card can be miniaturized.
- connection pin may be joined along the other surface of the contactor, and the other end side of the contact may be bent toward the circuit board.
- the other surface of the contactor may be formed with a convex that contacts the back surface of the bent contact pin on the contactor side.
- the connection pin is arranged so as to sandwich the convex portion with the other contactor on the other side of the contactor, and the bonding tool is connected
- the other end of the connection pin is inclined toward the circuit board with the contact point between the connection pin and the projection as a fulcrum while pressing one end of the pin and joining the one end of the connection pin to the contactor.
- the connection pin can be bent. It is possible to easily form and bond the bent connection pins in this way.
- connection pin since the connecting pin is bent with the contact point with the convex part as the fulcrum, the bending angle of the connecting pin depends on the height of the convex part, and the bending angle of the connecting pin can be made constant.
- shape of the connection pins can be made constant, for example, the shapes of the plurality of connection pins provided on the probe card can be made uniform, and the contact pressure of each connection pin to the circuit board can be made constant.
- the other surface of the contactor may be formed with another convex portion for pressing the end face on the other end side of the connection pin.
- the connection pin can be formed in a fixed shape.
- the present invention according to another aspect is a method of manufacturing a probe card having a contactor for supporting a probe on one side and a circuit board facing the other side of the contactor and electrically connected to the contactor.
- the force on the circuit board side is also pressed against one end of the connection pin, and while the other end of the connection pin is joined to the other surface of the contactor, the contact point of the connection pin and the projection is used as a fulcrum Make sure that the connection pins And bending the circuit board and bringing the circuit board into contact with the other end of the connection pin.
- connection pin since the connection pin is joined to the contactor and bent by the bonding tool, the formation and attachment of the connection pin can be performed easily in a short time.
- the connecting pin since the connecting pin is bent with the contact point with the convex part as a fulcrum, the bending angle of the connecting pin depends on the height of the convex part, and the bending angle of the connecting pin can be made constant.
- shape of the connection pins can be made constant, for example, the shapes of the plurality of connection pins provided on the probe card can be made uniform, and the contact pressure of each connection pin to the circuit board can be made constant.
- the position of the connection pin is not shifted to the one end side when pressed by the bonding tool to the other surface of the contactor.
- the one end side of the connection pin You may have the process of forming the other convex part which holds down the end face of
- mounting can be performed by a simple technique, the mounting position and the number thereof are not limited, and a sufficient movable space of the contact can be secured.
- the probe card has a simple configuration, can be miniaturized, and can be easily manufactured.
- FIG. 1 An explanatory view of a longitudinal section showing an outline of a configuration of a probe apparatus.
- FIG. 2 It is explanatory drawing of the longitudinal cross-section which shows the structure of the attachment part of a probe.
- FIG. 3 An explanatory view showing a state in which a convex portion is formed on the lower surface of the contactor.
- FIG. 4 It is explanatory drawing which shows the state which has arrange
- Fig. 5 is an explanatory view showing a state in which the probe is bonded to the contactor with a bonding tool and bent.
- FIG. 6 An explanatory view showing a state in which the probe and the wafer are in contact when inspecting the electrical characteristics of the wafer.
- FIG. 7 It is explanatory drawing of the longitudinal cross-section which shows the outline of a structure of a probe apparatus.
- FIG. 8 It is explanatory drawing of the longitudinal cross-section which shows the structure of the attaching part of a contact pin.
- FIG. 9 is an explanatory view showing a state in which a convex portion is formed on the upper surface of the contactor.
- FIG. 10 An explanatory view showing a state in which a contact pin is disposed on the upper surface of the contactor.
- Fig. 11 is an explanatory view showing a contact pin joined to a contactor with a bonding tool and bent.
- FIG. 12 is a perspective view of a package for sealing an electronic device and a wiring board.
- FIG. 13 It is explanatory drawing of the longitudinal cross-section which shows the structure of the attaching part of a connecting pin.
- FIG. 14 An explanatory view showing a state in which a convex portion is formed on the surface of a cage / cage.
- FIG. 15 is an explanatory view showing a state in which connection pins are arranged on the surface of the package.
- FIG. 16 An explanatory view showing a state where the connection pin is joined to the package with a bonding tool and bent.
- FIG. 17 It is explanatory drawing of the longitudinal cross-section which shows the structural example of the attachment part of the conventional probe.
- FIG. 18 It is explanatory drawing of the longitudinal cross-section which shows the other structural example of the attachment part of the conventional probe. Explanation of sign
- FIG. 1 is an explanatory view of a vertical cross section showing an outline of an internal configuration of a probe device 1 in the first embodiment.
- a probe card 2 and a wafer W as an inspection object are mounted on the probe device 1.
- a mounting table 3 is provided.
- the probe card 2 includes, for example, a contactor 11 as a main body member supporting the probes 10 as a plurality of connection pins, and a printed wiring board 13 as a circuit board electrically connected to the contactor 11 by a plurality of contact pins 12;
- a reinforcing member 14 for reinforcing the printed wiring board 13 is provided.
- the probe card 2 is attached to the probe device 1 by a card holder 15.
- the reinforcing member 14 is provided, for example, so as to cover the upper surface of the printed wiring board 13 and suppresses the thermal deformation of the printed wiring board 13.
- the contactor 11 is disposed below the printed wiring board 13 with a gap.
- a plurality of flexible and elastic contact pins 12 are interposed between the printed wiring board 13 and the contactor 11.
- the contact pins 12 allow connection terminals 13a of the printed wiring board 13 and connection terminals 11a of the contactor 11 to be formed. Are connected electrically.
- the lower part of the contact pin 12 is joined to the connection terminal 11a of the contactor 11, the vicinity of the central part is bent toward the printed wiring board 13 and the upper part is pressed against the connection terminal 13a of the printed wiring board 13 .
- the printed wiring board 13 when the printed wiring board 13 is slightly inclined due to thermal expansion, the inclination of the printed wiring board 13 is absorbed by the stagnation of the plurality of contact pins 12. Thereby, the levelness of the contactor 11 is maintained, and the electrical connection between the contactor 11 and the printed wiring board 13 is maintained.
- connection terminals 11 c connected to connection terminals 11 a on the upper surface by connection wiring l ib are formed on the lower surface of the contactor 11 on the side of the mounting table 3.
- the probes 10 are respectively joined to the connection terminals 11c.
- the probe 10 has an elongated flexible and elastic beam portion 10a and a contact 10b supported downward at the tip of the beam portion 10a.
- the beam portion 10a and the contactor 10b are formed of a conductive metal, and the probe 10 is brought into contact with the wafer W by the contactor 10b via the contactor 11, the contact pin 12 and the printed wiring board 13 It can exchange electrical signals and inspect the electrical characteristics of the electronic circuit on the wafer W.
- the wafer W corresponds to an external member.
- connection terminal 11c on the lower surface of the contactor 11 two convex portions 20, 21 separated by a predetermined distance are formed.
- a rear portion 10c of the beam portion 10a of the probe 10 is horizontally bonded to a surface of the connection terminal 11c between the first convex portion 20 and the second convex portion 21 over a predetermined width. There is.
- the rear end surface of the rear portion 10 c of the beam portion 10 a is in contact with the inner side surface of the first convex portion 20.
- the beam portion 10a of the probe 10 is bent downward from the rear 10c joined to the connection terminal 11c toward the tip of the contact 10b to the lower side of the mounting table 3.
- the back surface of the beam portion 10 a on the contactor 11 side is in contact with the second protrusion 21, and the height of the second protrusion 21 defines the bending angle of the beam portion 10 a.
- the probe 10 can be moved upward with the contact point P with the second protrusion 21 as a fulcrum, and the contact 10b can be moved in the vertical direction.
- a first outer peripheral member 30 formed along the outer periphery of the contactor 11 is disposed on the outer periphery of the contactor 11.
- the first outer peripheral member 30 is provided with a panel 31 for pressing and holding the contactor 11 to the printed wiring board 13 side.
- a second outer peripheral member 32 is disposed on the outer periphery of the first outer peripheral member 30.
- the second outer peripheral member 32 is fixed to the reinforcing member 14 by, for example, a bolt 33 which also penetrates the printed wiring board 13 and reaches the reinforcing member 14 with the lower surface force of the second outer peripheral member 32.
- the second outer peripheral member 32 is attached with a panel 34 for pressing and holding the first outer peripheral member 30 to the printed wiring board 13 side.
- a pressure adjusting mechanism 40 is provided on the upper surface of the reinforcing member 14.
- the pressure adjusting mechanism 40 is, for example, a bolt 41 which penetrates the reinforcing member 14 to reach the printed wiring board 13 by the upper surface force of the reinforcing member 14 and is fixed to the upper surface of the first outer peripheral member 30.
- Receiving members 42 are provided at a plurality of places. By turning the bolt 41, the heights of the printed wiring board 13 and the first outer peripheral member 30 can be adjusted, and the parallelism between the probe 10 of the contactor 11 and the wafer W can be adjusted.
- the reinforcing member 14 is fixed to the card holder 15 by bolts 43 provided at a plurality of positions on the outermost periphery of the reinforcing member 14.
- the mounting table 3 is configured to be movable, for example, horizontally and vertically, and moves the mounted wafer W three-dimensionally to bring the contact 10b of the probe 10 into a desired position on the wafer W be able to.
- first convex portions 20 and second convex portions 21 separated by a fixed distance are formed on the surface of each connection terminal 11c of the contactor 11, for example, as shown in FIG. 3, a pair of first convex portions 20 and second convex portions 21 separated by a fixed distance are formed.
- the first convex portion 20 and the second convex portion 21 are formed at predetermined intervals and at predetermined intervals using, for example, a photolithography technique.
- the 20 and the second convex portion 21 are formed using, for example, a material harder than nickel, and the surface is coated with gold or the like.
- the beam portion 10a is bent in a straight line as shown in FIG. 10 is disposed on the connection terminal 1 lc, and the rear 10 c of the probe 10 is inserted into the recess between the first projection 20 and the second projection 21, and the back surface of the beam 10 a is the second Contact with the convex part 21 of the That is, the beam portion 10 a is disposed so as to sandwich the second convex portion 21 with the surface of the contactor 11.
- the downward force of the wire bonder for example, the ultrasonic bonding tool T on the side of the mounting table 3 is also pressed against the rear 10c of the probe 10, and the rear 10c of the probe 10 is exposed by the addition of ultrasonic waves. It is joined to the connection terminal 11c.
- the pressing of the ultrasonic bonding tool T causes the beam portion 10a to be plastically deformed and bent with the contact point P between the beam portion 10a and the second convex portion 21 as a fulcrum.
- the end face of the rear portion 10c of the beam portion 10a is pressed by the first convex portion 20, and the beam portion 10a is prevented from being displaced backward.
- the bending angle of the beam 10a is determined by the horizontal distance L from the bending point of the beam 10a to the second protrusion 21 and the height H of the second protrusion 21, and the movable range of the contact 10b is determined. As the distance L and the height H become desired values, the height of the second convex portion 21 and the pressing position of the ultrasonic bonding tool T are set.
- the wafer W is lifted to the contactor 11 side.
- the wafer W is pressed against the contact 10b of each probe 10 as shown in FIG.
- the beam portion 10a of the probe 10 bends upward and the contact 10b moves upward, and the repulsive force maintains the contact between the contact 10b and the surface on the wafer W.
- the contactor 11 is dug in the same manner as in the prior art.
- the movable space in the vertical direction of the contact 10b of the probe 10 can be secured with a relatively simple configuration without providing or providing a high supporting column.
- the wafer W is pressed to the contactor 11 side.
- the contact between the wafer W and each contact 10 b is secured over the entire surface of the wafer, and the electrical characteristics can be inspected properly.
- the second convex portion 21 having a predetermined height is formed on the connection terminal 11c of the contactor 11, the rear portion 10c of the probe 10 is pressed by the ultrasonic bonding tool T.
- the beam portion 10a can be bent with the contact point P between the beam portion 10a and the second convex portion 21 as a fulcrum.
- the bending angles of the beam portions 10a of the plurality of probes 10 in the contactor 11 can be made constant, and the height of the contact 10b can be made constant.
- the first convex portion 20 is formed on the connection terminal 11c, it is possible to prevent the position of the probe 10 from being shifted when bonding with the ultrasonic bonding tool T.
- the pressing position and bonding position of the ultrasonic bonding tool T to the beam portion 10a become constant, and the bending position of the beam portion 10a becomes constant, so the heights of the contacts 10b of the respective probes 10 are more strictly aligned. be able to.
- the rear portion 10c of the beam portion 10a is pressed by the ultrasonic bonding tool T to bend the beam portion 10a, and the rear portion of the beam portion 10a is formed.
- 10c was bonded to the connection terminal 11c, but first, the ultrasonic bonding tool T was pressed against the rear portion 10c of the beam portion 10a to bend the beam portion 10a, and then the weak ultrasonic wave was applied to the rear portion 10c of the beam portion 10a. Add and temporarily connect the rear 10c to the connection terminal 11c, and then add a strong ultrasonic wave to the rear 10c of the beam 10a again with the ultrasonic bonding tool T to reattach the rear 1 Oc to the connection terminal 1 lc I'm sorry.
- the present invention is not limited to this example and can take various aspects.
- the first convex portion 20 and the second convex portion 21 are formed on the lower surface of the contactor 11, but the second convex portion 21 serving as a support point when the beam portion 10a is bent. You may make it form only.
- the configuration of the probe device 1 other than the probe 10 and the configuration of the probe card 2 are not limited to those of the present embodiment, and may be other configurations.
- the bonding tool for bonding the beam portion 10a of the probe 10 to the connection terminal 11c is not limited to one to which an ultrasonic wave is added, and may be another type.
- FIG. 7 is an explanatory view of a vertical cross-sectional view showing an outline of the internal configuration of the probe device 101 to which the probe card according to the present embodiment is attached.
- FPD flat panel display
- the probe apparatus 101 is provided with, for example, a probe card 102 and a mounting table 103 for mounting a wafer W as an object to be inspected.
- the probe card 102 is formed, for example, in a substantially disc shape as a whole.
- the probe card 102 includes a contactor 111 as a main body member supporting a plurality of probes 110 and a printed wiring board 113 as a circuit board electrically connected to the contactor 111 by contact pins 112 as a plurality of connection pins, A reinforcing member 114 for reinforcing the printed wiring board 113 is provided.
- the probe card 102 is attached to the probe apparatus 101 by a force holder 115, for example.
- the printed wiring board 113 corresponds to an external member.
- the contactor 111 is formed, for example, in a substantially disk shape, and is provided on the lower surface side of the probe force guard 102 facing the mounting table 103.
- a plurality of probes 110 are joined and supported at predetermined positions on the lower surface of the contactor 111.
- a plurality of connection terminals 11 la are formed on the top surface of the contactor 111 at positions corresponding to the respective probes 110, and the probes 110 and the connection terminals 11 la are connected by connection wiring 11 lb passing through the inside of the contactor 111. It is.
- the printed wiring board 113 is formed in, for example, a substantially disk shape, and is disposed on the upper side of the contactor 111 so as to be parallel to the contactor 111.
- the printed wiring board 113 is disposed with a gap of a fixed width between it and the upper surface of the contactor 111.
- a plurality of elastic and flexible contact pins 112 are provided in the gap between the printed wiring board 113 and the contactor 111.
- the contact pin 112 is formed of, for example, conductive nickel, and is formed in a plate shape having a length of about 1.3 mm, a width of about 0.07 mm and a thickness of about 0.05 mm, for example. For example, as shown in FIG.
- the lower end 112a of the contact pin 112 is joined to the connection terminal (electrode) 11 la of the contactor 111, and the portion on the upper end 112b side from the joined portion is bent toward the printed wiring board 113 side.
- the upper end portion 112 b is pressed against and in contact with the connection terminal 113 a of the printed wiring board 113.
- the upper end 112 b of the contact pin 112 can freely move vertically and horizontally while maintaining contact with the printed wiring board 113.
- the electrical connection between the printed wiring electrode 113 and the contactor 111 is maintained by the contact pin 112. Further, on the connection terminal 11 la on the top surface of the contactor 111, two first convex portions 120 and second convex portions 121 separated by a predetermined distance are formed!
- the lower end portion 112 a of the contact pin 112 is horizontally joined to the surface of the connection terminal 11 la between the first convex portion 120 and the second convex portion 121 over a predetermined width.
- the end surface on the lower end portion 112 a side of the contact pin 112 abuts on the inner side surface of the first convex portion 120.
- the back surface on the contactor 111 side of the inclined portion of the contact pin 112 is supported by the second convex portion 121, and the height of the second convex portion 121 defines the bending angle of the contact pin 112.
- the contact pin 112 can move up and down with the contact point P with the second convex portion 121 as a fulcrum.
- the reinforcing member 114 is provided, for example, to cover the upper surface of the printed wiring board 113, and suppresses thermal deformation of the printed wiring board 113.
- a first outer peripheral member 130 formed along the outer periphery of the contactor 111 is disposed on the outer periphery of the contactor 111.
- the first outer peripheral member 130 is attached with a panel 131 for pressing and holding the contactor 111 against the printed wiring board 113 side.
- the second outer peripheral member 132 is disposed on the outer periphery of the first outer peripheral member 130.
- the second outer peripheral member 132 is, for example, fixed to the reinforcing member 114 by means of a bolt 133 which passes the lower surface force of the second outer peripheral member 132 also through the printed wiring board 113 and reaches the reinforcing member 114.
- a panel 134 for holding the first outer peripheral member 130 by pressing the first outer peripheral member 130 against the printed wiring board 113 is attached to the second outer peripheral member 132.
- a pressure adjustment mechanism 140 is provided on the upper surface of the reinforcing member 114.
- the pressure adjustment mechanism 140 is, for example, a bolt 141 which penetrates the upper surface reinforcing member 114 of the reinforcing member 114 and reaches the printed wiring board 113 and is fixed to the upper surface of the first outer peripheral member 130.
- Receiving members 142 are provided at a plurality of places. By turning the bolt 141, the height of the printed wiring board 113 can be adjusted, and the contact pressure between the contact pin 112 and the printed wiring board 113 can be adjusted.
- the reinforcing member 114 is fixed to the card holder 115 by bolts 143 provided at a plurality of positions on the outermost periphery of the reinforcing member 114.
- the mounting table 103 is configured to be movable, for example, horizontally and vertically, and can move the placed wafer W three-dimensionally to bring the probe 110 into contact with a desired position on the wafer W. .
- a method of manufacturing the above-described probe card 102 will be described.
- the first convex portion 120 and the second convex portion 121 are formed at a predetermined height and a predetermined interval by using, for example, a photolithographic technique.
- the surface of the first convex portion 120 and the second convex portion 121 is coated with gold or the like.
- the contact pin 112 in a state of being bent in a straight line is in contact with the contactor.
- the lower end portion 112a of the contact pin 112 is placed in the recess between the first convex portion 120 and the second convex portion 121, and the back surface of the contact pin 112 is the second convex portion.
- 121 is abutted. That is, the contact pin 112 is disposed so as to sandwich the second protrusion 121 with the surface of the contactor 111.
- an ultrasonic bonding tool T of a wire bonder is pressed near the lower end 112a of the upper force contact pin 112, and the lower end 112a of the contact pin 112 It is joined to the connection terminal 111a.
- the contact pin 112 is plastically deformed and bent with the contact point P between the contact pin 112 and the second convex portion 121 as a fulcrum.
- the ultrasonic bonding tool T is pressed against the lower end 112a of the contact pin 112, the end face on the lower end 112a side of the contact pin 112 is pressed by the first convex portion 120, and the contact pin 112 Deviation is prevented.
- the wafer W has a predetermined temperature
- the contactor 111 is brought close, and each probe 110 is brought into contact with the surface of Ueno and W. Then, for example, even if the flatness and horizontality of the printed wiring board 113 are lowered due to the thermal expansion and contraction of the printed wiring board 113, the distortion and stagnation of the printed wiring board 113 at that time causes a plurality of contact pins Absorbed by the And, the contact between the contact pin 112 and the printed wiring board 113 is maintained.
- each probe 110 of the contact 111 is stably brought into contact with the surface of the wafer W.
- the electrical contact between the contactor 111 and the printed wiring board 113 and the absorption of deformation of the printed wiring board 113 due to the thermal effect, etc. can be realized with a simple configuration by means of the contact pin 112 provided between it and 113. Further, since the contact pin 112 does not take up a space, the probe card 102 can be miniaturized.
- the second convex portion 121 is formed on the upper surface of the contactor 111, and the lower end 112a of the contact pin 112 is pressed by the ultrasonic bonding tool T. Then, while bonding the contact pin 112 to the contactor 111, the contact pin 112 was bent with the contact point P between the contact pin 112 and the second convex portion 121 as a fulcrum. By doing this, the probe card 102 having the contact pins 112 can be easily manufactured in a short time.
- the bending angle of the contact pin 112 depends on the height of the second convex portion 121, the bending angles of the plurality of contact pins 112 can be aligned to form the contact pin 112 having the same shape. Therefore, the contact pressure between each contact pin 112 and the printed wiring board 113 becomes constant, and the contact between the contactor 111 and the printed wiring board 113 can be stabilized.
- the first convex portion 120 is formed on the upper surface of the contactor 111, it is possible to prevent the position of the contact pin 112 from being shifted when bonding with the ultrasonic bonding tool T.
- the pressing position and bonding position of the ultrasonic bonding tool T with respect to the contact pin 112 become constant and the bending angle of the contact pin 112 becomes constant, the shapes of the plurality of contact pins 112 can be made more strictly equal. it can.
- the present invention is not limited to this example and can take various aspects.
- the first convex portion 120 and the second convex portion 121 are formed on the upper surface of the contactor 111, but only the second convex portion 121 serving as a fulcrum when the contact pin 112 is bent. May be formed.
- contact pin 112 Force S Contactor: L] is bonded to the 1 side, but may be bonded to the surface of the printed circuit board 113 on the contactor 111 side.
- the printed wiring board 113 is a main body member
- the contactor 111 is an external member.
- the configuration of the probe device 101 other than the contact pin 112 and the configuration of the probe card 102 are not limited to those in the present embodiment, and may be other configurations.
- the bonding tool used when bonding the insect-repellent pin 112 to the contactor 111 is not limited to one to which ultrasonic waves are added, and may be another type.
- the present invention can also be applied to the case where the object to be inspected is another substrate such as a flat panel display (FPD) other than the wafer W and a mask reticle for a photomask.
- FPD flat panel display
- connection pins provided on the probe card have been described in the above embodiment, the connection pins in the present invention are not limited to those using force.
- connection pins may be connected to the surface of the package covering the electronic device.
- FIG. 12 shows such an example, in which an electronic device 150 such as a MEMS (micro 'electrical port' mechanical system) or CPU is sealed by a package 151 as a main body member, and the surface of the package 151 is sealed.
- a plurality of external electrodes 151a electrically connected to the internal electronic device 150 by wiring 15 Oa are provided.
- the external electrode 151 a is provided with a plurality of elastic and flexible connection pins 152.
- connection pin 152 is formed of, for example, conductive copper, nickel or the like, as shown in FIG. 13, and has an elongated shape.
- the rear portion 152a of the connection pin 152 is joined to the external electrode 151a of the package 151, and the portion on the tip portion 152b side of the joint portion is bent toward the wiring substrate 153 as an external member.
- first convex parts 154 and second convex parts 155 which are separated by a predetermined distance are formed on the external electrode 151a of the surface of the cage / cage 151.
- the side surface of the rear portion 152 a of the connection pin 152 is joined to the surface of the external electrode 151 a between the first convex portion 154 and the second convex portion 155.
- the end surface of the rear portion 152 a of the connection pin 152 abuts on the inner side surface of the first convex portion 154.
- the back surface of the inclined portion of the connection pin 152 on the package 151 side is supported on the second protrusion 155, and the height of the second protrusion 155 defines the bending angle of the connection pin 152. .
- connection pin 152 can move up and down with the contact point P with the second convex portion 155 as a fulcrum.
- the package 151 of the electronic device 150 is mounted on the wiring board 153, the package 151 and the wiring board 153 are disposed opposite to each other, and an elastic member, for example, is provided between the package 151 and the wiring board 153.
- An adhesive such as resin K is filled, and the connection pin 152 is joined to the connection terminal 153 a of the wiring board 153. Electrical connection between the wiring board 153 and the electronic device 150 is maintained by the connection pins 152.
- connection pin 152 is made of the wiring board 153. It may be in contact with the connection terminal 153a.
- first convex portions 154 and second convex portions 155 are formed on the surface of each external electrode 151a of the package 151 at a predetermined distance.
- the first convex portion 154 and the second convex portion 155 are formed at a predetermined distance and at a predetermined interval using, for example, a photolithography technique as in the formation of a normal bump and the like.
- the first convex portion 154 and the second convex portion 155 are formed of, for example, the same material as the connection pin 152 or a material harder than that, and the surface is coated with gold or the like.
- connection pin 152 in a straight and non-bent state is disposed on the package 151, and the rear 152a side of the connection pin 152 is the first convex portion 154 and the second It is inserted into the recess between the projection 155 and the rear surface of the connection pin 152 is abutted against the second projection 155. That is, the connection pins 152 are disposed so as to sandwich the second convex portion 155 with the surface of the package 151.
- the ultrasonic bonding tool T of the wire bonder pushes the upper side force also in the vicinity of the rear portion 152a of the connection pin 152, and the rear portion 152a of the connection pin 152 It is joined to the external electrode 151a.
- the contact pin 152 is plastically deformed and bent with the contact point P between the connection pin 152 and the second convex portion 155 as a fulcrum.
- connection pin 152 when the ultrasonic bonding tool is pressed against the rear portion 152a of the connection pin 152, the end surface on the rear portion 152a side of the connection pin 152 is pressed by the first convex portion 154, and the connection pin 152 is displaced rearward. It is prevented.
- the package 151 and the wiring substrate 153 are electrically connected via the bent connection pins 152, for example, distortion generated in the package 151 and the wiring substrate 153 is caused by the connection pins 152. Can be absorbed by As a result, disconnection between the package 151 and the wiring board 153 can be prevented.
- the present invention is not limited to this example and can take various aspects.
- the first convex portion 154 and the second convex portion 155 are formed on the surface of the package 151.
- the second convex portion serving as a fulcrum when the connection pin 152 is bent Only 155 may be formed.
- the bonding tool for bonding the connection pin 152 to the external electrode 151a is not limited to one to which an ultrasonic wave is added, and may be another type.
- the present invention is useful in securing the movable space of the contact of the probe with a simple configuration.
- the present invention is useful in realizing a probe head that has a simple configuration, is easy to manufacture, and is miniaturized.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/885,936 US7629806B2 (en) | 2005-03-08 | 2006-03-08 | Method for forming connection pin, probe, connection pin, probe card and method for manufacturing probe card |
JP2006533383A JP4588711B2 (ja) | 2005-03-08 | 2006-03-08 | 接続ピンの形成方法,プローブ,接続ピン,プローブカード及びプローブカードの製造方法 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-064327 | 2005-03-08 | ||
JP2005064327 | 2005-03-08 | ||
JP2005-067155 | 2005-03-10 | ||
JP2005067155 | 2005-03-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006095759A1 true WO2006095759A1 (ja) | 2006-09-14 |
Family
ID=36953353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/304441 WO2006095759A1 (ja) | 2005-03-08 | 2006-03-08 | 接続ピンの形成方法,プローブ,接続ピン,プローブカード及びプローブカードの製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7629806B2 (ja) |
JP (1) | JP4588711B2 (ja) |
KR (1) | KR100788208B1 (ja) |
TW (1) | TW200704937A (ja) |
WO (1) | WO2006095759A1 (ja) |
Cited By (7)
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JP2008217921A (ja) * | 2007-03-06 | 2008-09-18 | Shinka Jitsugyo Kk | プローブ組立体、バーの研磨装置、およびバーの研磨方法 |
JP2008216060A (ja) * | 2007-03-05 | 2008-09-18 | Micronics Japan Co Ltd | 電気的接続装置 |
JP2009002760A (ja) * | 2007-06-21 | 2009-01-08 | Japan Electronic Materials Corp | プローブカード及びそのプローブ基板の固定支持方法 |
JP2009002759A (ja) * | 2007-06-21 | 2009-01-08 | Japan Electronic Materials Corp | プローブカード及びそのプローブ基板の面平行度の保持方法 |
WO2009072341A1 (ja) * | 2007-12-04 | 2009-06-11 | Tokyo Electron Limited | プローブ装置 |
JP2016524137A (ja) * | 2013-05-06 | 2016-08-12 | フォームファクター, インコーポレイテッド | 電子デバイスを試験するためのプローブカードアセンブリ |
JP2018031597A (ja) * | 2016-08-22 | 2018-03-01 | Koa株式会社 | プローブユニット |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4342174B2 (ja) * | 2002-12-27 | 2009-10-14 | 新光電気工業株式会社 | 電子デバイス及びその製造方法 |
JP4859820B2 (ja) * | 2007-12-05 | 2012-01-25 | 東京エレクトロン株式会社 | プローブ |
JP4886800B2 (ja) * | 2009-02-26 | 2012-02-29 | インターナショナル・ビジネス・マシーンズ・コーポレーション | プローブカード、プローブカードの製造方法、プローバ装置 |
US8643394B2 (en) * | 2010-04-16 | 2014-02-04 | Taiwan Semiconductor Manufacturing Company, Ltd. | Non-reflow probe card structure |
US20130265073A1 (en) * | 2011-01-16 | 2013-10-10 | Japan Electronic Materials Corporation | Probe Card And Manufacturing Method Therefor |
KR101149759B1 (ko) * | 2011-03-14 | 2012-06-01 | 리노공업주식회사 | 반도체 디바이스의 검사장치 |
WO2013061486A1 (ja) * | 2011-10-26 | 2013-05-02 | ユニテクノ株式会社 | コンタクトプローブおよびそれを備えた検査ソケット |
JP6255914B2 (ja) * | 2013-11-07 | 2018-01-10 | 日本電産リード株式会社 | 検査治具 |
US9728347B2 (en) * | 2014-12-16 | 2017-08-08 | Hamilton Sundstrand Corporation | Integrated contactor mounting and power distribution system and method |
JP7075725B2 (ja) * | 2017-05-30 | 2022-05-26 | 株式会社日本マイクロニクス | 電気的接続装置 |
KR101843322B1 (ko) * | 2017-09-27 | 2018-03-29 | 조항일 | 반도체 테스트용 소켓의 컨택핀 조립장치 |
KR101954002B1 (ko) * | 2017-12-29 | 2019-03-04 | 조항일 | 반도체 테스트용 소켓의 컨택핀 조립장치 |
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- 2006-03-08 US US11/885,936 patent/US7629806B2/en not_active Expired - Fee Related
- 2006-03-08 KR KR1020067022174A patent/KR100788208B1/ko not_active IP Right Cessation
- 2006-03-08 JP JP2006533383A patent/JP4588711B2/ja not_active Expired - Fee Related
- 2006-03-08 TW TW095107840A patent/TW200704937A/zh not_active IP Right Cessation
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JP2008216060A (ja) * | 2007-03-05 | 2008-09-18 | Micronics Japan Co Ltd | 電気的接続装置 |
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Also Published As
Publication number | Publication date |
---|---|
JP4588711B2 (ja) | 2010-12-01 |
KR100788208B1 (ko) | 2007-12-26 |
US20080284458A1 (en) | 2008-11-20 |
TW200704937A (en) | 2007-02-01 |
JPWO2006095759A1 (ja) | 2008-08-14 |
KR20070057077A (ko) | 2007-06-04 |
TWI293119B (ja) | 2008-02-01 |
US7629806B2 (en) | 2009-12-08 |
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