WO2013171946A1 - 半導体装置の製造方法および半導体装置 - Google Patents
半導体装置の製造方法および半導体装置 Download PDFInfo
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- WO2013171946A1 WO2013171946A1 PCT/JP2013/001373 JP2013001373W WO2013171946A1 WO 2013171946 A1 WO2013171946 A1 WO 2013171946A1 JP 2013001373 W JP2013001373 W JP 2013001373W WO 2013171946 A1 WO2013171946 A1 WO 2013171946A1
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Definitions
- the present invention relates to a semiconductor device including a power device such as a switching element and used for power conversion applications such as an inverter.
- Power conditioners for solar power generation systems and power devices used for motor rotation control are designed to reduce the mounting area, improve the performance by shortening the distance between semiconductor elements, and reduce the design load on the user side.
- the number of modularized products in a single package is increasing.
- a product in one package is called a power module.
- a power module a plurality of power semiconductor elements such as IGBT (insulated gate bipolar transistor) and MOSFET (Metal-Oxide-Semiconductor field effector transistor) for switching are mounted.
- IGBT insulated gate bipolar transistor
- MOSFET Metal-Oxide-Semiconductor field effector transistor
- This power module is that a power semiconductor element bonded on a ceramic substrate is placed on a resin-molded frame called an insert case, and the terminal of the case and the surface of the power semiconductor element are connected with a metal wire such as Al. Then, a manufacturing method in which they are potted with silicone gel and collectively sealed is generally used.
- the heat sink attached to the back surface of the insert case may be warped, making it difficult to ensure flatness of the back surface.
- the power module is attached to the heat sink via the heat dissipation grease, the thickness of the heat dissipation grease varies depending on the location, and the heat dissipation efficiency decreases significantly in the thick part, so the power module can be thermally destroyed. There is sex.
- FIG. 10A and FIG. 10B are plan views of the semiconductor device 100 described in Patent Document 1.
- FIG. FIG. 10B is a cross-sectional view of FIG.
- the semiconductor device 100 includes a case 101 and at least two or more packages 102.
- Case 101 is formed of a resin-molded frame, and is provided with external terminals 103 and output terminals 104. Screw holes 105 are provided at the four corners of the case 101 for connection to a heat sink (not shown).
- the package 102 includes a metal block 106 made of, for example, Cu.
- An insulating substrate 114 made of ceramic or the like is fixed to the back surface of the metal block 106.
- a power semiconductor element 108 is fixed on the metal block 106 via a metal lead frame 107.
- MOSFET or IGBT is used for the power semiconductor element 108.
- the surface electrode of the power semiconductor element 108 is connected to the inner lead 110 by a bonding wire 109 made of Al or the like and having a diameter of about 300 ⁇ m.
- the metal block 106 and the power semiconductor element 108 are sealed with a mold resin 111 such as an epoxy resin so that the lead frame 107 is partially exposed.
- the power terminal 112 and the control terminal 113 are drawn out and exposed.
- the power terminal 112 is connected to the external terminal 103 and the output terminal 104 of the case 101.
- the control terminal 113 is drawn from a side different from the side from which the power terminal 112 is drawn from the mold resin 111.
- resin molding is performed using a transfer molding apparatus. That is, after the lead frame 107 to which the metal block 106 or the like is fixed is placed in the mold, an epoxy resin is poured into the mold to form the mold resin 111.
- the back surface of the metal block 106 is exposed from the mold.
- the metal block 106 is taken out of the mold, and the insulating substrate 114 is bonded to the back surface of the metal block 106 using solder or the like.
- the package 102 is put in the case 101, and the external terminal 103, the output terminal 104, and the power terminal 112 are connected.
- the package 102 is fixed in the case 101 by connecting the power terminal 112 to the external terminal 103 and the output terminal 104.
- control board for controlling the power semiconductor element 108 is mounted on the control terminal 113 provided in the package 102.
- this control board drives and protects the power semiconductor element 108, and a shorter wiring distance leads to an electrical advantage such as reduced inductance.
- the form of incorporating the control board is becoming mainstream.
- the control board is mounted on the control terminal 113 of each package 102, and the semiconductor device 100 is screwed and fixed from the screw hole 105 to the heat sink.
- the prior art does not consider variations in the heights of the packages 102, and therefore, if the bottom surface height of the package 102 varies when the semiconductor device 100 is screwed to the heat sink, the package 102 is in close contact with the heat sink. There is a difference in the reaction force applied.
- heat dissipation grease is applied to the back surface of each package 102.
- the back surface of the package 102 protrudes from the back surface of the case 101, a relatively large force is generated during mounting.
- the reaction force received through the heat radiation grease is weakened.
- the control board since the control board is already mounted with solder and its height is fixed, an excessive stress is generated in the joint portion of the control terminal 113 of the package 102 protruding from the back surface of the case 101, and the solder There is a risk of causing a conduction failure by breaking.
- each package 102 with respect to the case 101 varies, the package 102 that protrudes most toward the mounting surface side to the heat sink than the bottom surface of the case 101 receives the most reaction force, and when the semiconductor device 100 is mounted. Since the displacement amount of the package 102 is also the largest, the stress is most generated in the joint portion of the control terminal 113.
- the heat radiation grease is applied to the bottom surface to improve the contact property.
- a thick heat dissipation grease is applied in advance, and a desired thickness is achieved by pressing force and torque management during screwing.
- the thermal conductivity of the heat dissipating grease is 1 W / m ⁇ ° C. or less, and is used with a thickness of 100 ⁇ m or less.
- the thermal resistance from the power semiconductor element 108 to the heat sink may increase more than twice, and the temperature exceeds the rating. As a result, the power semiconductor element 108 may be thermally destroyed, resulting in malfunction.
- the ratio of the heat dissipation grease to the thermal resistance of the entire structure including the semiconductor device 100 is increased, so that the influence due to the height variation is also increased.
- the thickness management of heat dissipation grease is expected to increase in importance.
- the present invention has been made in view of such a problem, and can reduce variation in thermal resistance of each package mounted on a case, and can further suppress excessive stress on a joint between a control board and a control terminal.
- An object of the present invention is to provide a device manufacturing method and a semiconductor device.
- a method of manufacturing a semiconductor device in which a semiconductor device in which a plurality of packages each having a power semiconductor element mounted therein is disposed inside a resin-molded case has one end extending along the inner bottom.
- the case having the first terminal that is pulled out and connected to the power semiconductor element is placed on the work table with the opening at the bottom thereof facing down, and the second terminal connected to the power semiconductor element is The package is placed on the work table through the opening of the case to form a gap between the first terminal of the case and the second terminal of the package, and joined to the gap
- the first terminal and the second terminal are electrically connected via a material.
- the power semiconductor element includes a plurality of packages each having a plurality of power semiconductor elements mounted inside a resin-molded case.
- the package having the second terminal connected to the work table is placed on the work table so that the second terminal extends along the work table, and one end is pulled out along the intermediate position in the depth direction inside.
- the case having the first terminal connected to the power semiconductor element is placed on the work table with the opening at the bottom of the case facing down, and the first terminal of the case is placed on the work table.
- the first terminal and the second terminal are electrically connected with a bonding material interposed between the first terminal and the second terminal of the package.
- a method of manufacturing a semiconductor device comprising: a plurality of packages each having a power semiconductor element mounted therein;
- the case having a first terminal that is pulled out in the depth direction and connected to the power semiconductor element is placed on a work table with an opening at the bottom thereof facing down, and connected to the power semiconductor element and connected to the power semiconductor element.
- the package having the second terminal drawn in the depth direction is placed on the work table through the opening of the case, and the first terminal of the case and the second terminal of the package And is electrically connected.
- a semiconductor device is a semiconductor device in which a plurality of packages having power semiconductor elements mounted therein are arranged inside a resin-molded case and connected to the power semiconductor elements mounted therein.
- a first terminal connected to the second terminal, the first terminal connected to the second terminal is formed along the bottom of the inside, and an opening is formed on the bottom to expose a part of the package.
- a bonding material for electrically connecting the second terminal is provided.
- a semiconductor device is a semiconductor device in which a plurality of packages each having a power semiconductor element mounted therein are disposed inside a resin-molded case, and the power semiconductor element mounted therein.
- a package having a second terminal connected to the bottom, and an opening in which a part of the package is exposed is formed at the bottom, and one end is pulled out along an intermediate position in the depth direction on the inside and the second terminal
- a bonding material for electrically connecting the second terminal of the package.
- a semiconductor device is a semiconductor device in which a plurality of packages each having a power semiconductor element mounted therein are disposed inside a resin-molded case, and the power semiconductor element mounted therein.
- a first terminal connected to the power semiconductor element and having a second terminal connected to the base, an opening in which a part of the package is exposed is formed at the bottom, and one end is drawn inward in the depth direction.
- a case having a terminal, and the second terminal of the package extends in the depth direction along the first terminal of the case to contact the first terminal, and is caulked.
- the first terminal and the second terminal are electrically connected by ultrasonic bonding.
- a gap is formed between the first terminal of the case placed on the work table and the second terminal of the package placed on the work table, and the work table
- the first terminal drawn from the case in the depth direction and the second terminal drawn from the package in the depth direction are placed on the work table so as to come into contact with each other.
- the case and the package are mounted, and the first terminal and the second terminal that are in contact with each other are electrically connected to each other by caulking or ultrasonic bonding, thereby aligning the bottom surface height of the package mounted on the case. It is possible to reduce variations in the thermal resistance of each package. Furthermore, excessive stress applied to the control board mounting portion can be suppressed.
- FIG. 1A is a cross-sectional view showing a semiconductor device according to a first embodiment of the present invention
- FIG. 2A to 2D are manufacturing process diagrams of the semiconductor device according to the embodiment.
- FIG. 3 is a circuit diagram of the package according to the embodiment.
- 4A is a schematic diagram showing the internal structure of the package in the embodiment, and
- FIG. 4B is a plan view of the power semiconductor element.
- FIG. 5 is a sectional view of the package according to the embodiment.
- FIG. 6 is a sectional view of the semiconductor device according to the second embodiment of the present invention.
- FIGS. 7A to 7D are manufacturing process diagrams of the semiconductor device according to the embodiment.
- FIG. 8 is a sectional view of the semiconductor device according to the third embodiment of the present invention.
- FIGS. 9A to 9C are manufacturing process diagrams of the semiconductor device according to the embodiment.
- 10A is a cross-sectional view showing a semiconductor device according to a conventional embodiment
- FIG. 10B is
- FIGS. 1A and 1B are a cross-sectional view and a plan view of the semiconductor device 100 according to the first embodiment.
- a plurality of packages 6 are arranged in the case 2 formed as a frame.
- the case 2 is a resin-molded frame, and is provided with a positive terminal 17, a negative terminal 18, and an output terminal 19.
- the positive electrode terminal 17 is not shown in FIGS.
- the negative electrode terminal 18 has a shape branched inside the case 2.
- the terminal is embedded by molding a terminal which has been processed into a desired shape in advance into a desired shape at the same time as the resin.
- the package 6 has a third terminal 5 bent from the bottom of the case 2 in the depth direction in addition to the second terminal 4 extending along the bottom of the case 2.
- Threaded holes 20 are provided at the four corners of the case 2 to connect to the heat sink.
- the case 2 has a structure in which three packages 6 are arranged.
- the present invention can be applied to a semiconductor device having two or more packages 6. Further, the positional relationship among the positive terminal 17, the negative terminal 18, and the output terminal 19 is not limited in the form as in the present embodiment.
- the case 2 is placed on the work stage 3 having a flat surface.
- the case 2 has a rectangular frame shape in which an opening 30 is formed at the bottom.
- the case 2 is provided with a first terminal 1 having one end exposed at the bottom of the case 2 and the other end drawn out of the case 2.
- the first terminal 1 can be formed of Cu or an alloy containing Cu as a main material, and the surface thereof may be subjected to metal plating. In the power module field, in order to handle a large current, it is desirable to use a material having a low electrical resistance and a high proportion of Cu having good heat conduction.
- the case 2 can be insert-molded with resin together with the first terminal 1.
- PPS Poly Phenylene Sulfide Resin
- the work stage 3 can be formed by, for example, a machined metal stage. Although not shown, it is desirable in terms of workability to provide a positioning mechanism for the case 2 in the work stage 3.
- the bottom surface of the case 2 and the work stage 3 are in a substantially parallel state, and the gap existing between the case 2 and the work stage 3 is adjusted to be 50 ⁇ m or less. This is to suppress the occurrence of cracks in the resin that is the material of the case 2 when the case 2 is fixed with screws.
- the package 6 is placed on the work stage 3 exposed inside the case 2. More specifically, the case 2 has such a size that a plurality of three packages 6 can be arranged side by side, as in FIG.
- the bottom surfaces of the three packages 6 set inside the case 2 and the work stage 3 are in a substantially parallel state, and there is a problem even if a gap of 50 ⁇ m or less exists between each package 6 and the work stage 3. No. This is because the flatness of the heat sink to which the power module is attached is controlled to about 50 ⁇ m, and the flatness is controlled. If the flatness of the work stage 3 is matched to the flatness of the heat sink, Can be reproduced.
- the second terminal 4 and the third terminal 5 can be formed of Cu or an alloy containing Cu as a main material, and the surface thereof may be subjected to metal plating. Since the third terminal 5 is mounted on the control board in a later step, the outer plating of the package 6 is preferably Sn-based alloy plating, for example, Sn—Bi plating, from the viewpoint of solder wettability. There is no problem if the film thickness is 5 ⁇ m or more.
- the first terminal 1 of the case 2 and the second terminal of each package 6 are in a state where the bottom surfaces of the case 2 and each package 6 are grounded to the work stage 3.
- a gap 31 is formed between the two. This is to ensure that the bottom surface of each package 6 is in contact with the work stage 3 by taking a distance between the bonding surface of the first terminal 1 and the bonding surface of the second terminal 4. With this configuration, the bottom surface of the case 2 and the bottom surface of each package 6 can be aligned with high accuracy.
- the first terminal 1 and the second terminal 4 are electrically joined using the joining material 7.
- the bonding material 7 for example, solder or Ag paste can be used.
- solder for example, solder or Ag paste can be used.
- the bonding material 7 can be disposed in the gap 31.
- solder is used as the bonding material 7, the solder is melted by local heating with hot air or laser at the time of bonding.
- the bonding material 7 is uniformly applied to the bonding portion by using a capillary phenomenon. It has the advantage that it can be distributed.
- the joining quality is improved and the workability is improved. Bonding is possible if the distance is 10 ⁇ m or more. From the viewpoint of bonding reliability, it is desirable to have a thickness of about 100 ⁇ m.
- the control board 8 provided with a through hole in advance is inserted into the third terminal 5 and electrically joined.
- the third terminal 5 and the control board 8 can be joined with solder, but generally Sn—Ag—Cu solder can be used for mounting.
- solder but generally Sn—Ag—Cu solder can be used for mounting.
- the mounting surface of the control board 8 can be mounted at almost the same height.
- the reaction force applied to the bottom surface of the package 6 when it is attached to the heat sink is the same. It is possible to suppress the stress applied to the joint between the third terminal 5 taken out from each package 6 and the control board 8, and to improve the reliability.
- the thickness of the heat dissipating grease can be made uniform between the packages 6, the thermal resistance is also uniform, and the thermal destruction of the semiconductor device due to the heat dissipating grease variation can be suppressed.
- the number of packages 6 incorporated in the case 2 in the embodiment of the present invention is two or more.
- a supplementary explanation will be given in this regard.
- FIG. 3 is a circuit diagram in the package 6.
- the internal structure of the package 6 is not limited to this form.
- 4 (a) and 4 (b) are schematic views showing the internal planar structure of the package 6 in the embodiment of the present invention.
- the package 6 has a configuration in which two power semiconductor elements 9 are connected in series as shown in FIG. 3, and is a one-phase inverter having a positive terminal, a negative terminal, and an output terminal. As shown in FIG. 4A, the power semiconductor elements 9 are mounted at two locations on the lead frame 10, one being a positive side circuit and the other being a negative side circuit. In addition, a gate for switching each on / off is arranged. For example, an inverter circuit for a three-phase AC can be formed by combining three packages 6 having such a circuit configuration, and the circuit controls the rotation of the motor. As described above, a power module for power conversion uses this configuration as a unit, and two or more packages 6 are combined to serve as a module.
- a power semiconductor element 9 is mounted on the lead frame 10.
- the power semiconductor element 9 is, for example, an IGBT.
- the diode 9b is also mounted at the same time.
- the power semiconductor element 9 is bonded to the lead frame 10 with a bonding material (not shown).
- a bonding material it is desirable from the viewpoint of heat dissipation to use a metal-based material having good thermal conductivity such as Sn—Ag—Cu-based solder.
- the power semiconductor element 9 has a source electrode 11 and a gate electrode 12 on its surface, and is joined to a terminal of the lead frame 10 with an Al wire 13.
- the drain electrode of the power semiconductor element 9 hits the back surface of the element.
- the Al wire 13 does not have to be a wire shape, and may be a foil-like Al ribbon.
- the gate electrode 12 flows only a small current for control as compared with the source electrode 11, the electrode area is small, and the Al line 13 may be thinner than that for the source electrode 11.
- the Al wire 13 having a diameter of 150 microns can be used.
- they are sealed with a mold resin 14 leaving the second terminal 4 and the third terminal 5 drawn out to the outside.
- the mold resin 14 for example, a thermosetting epoxy resin for transfer molding can be used.
- FIG. 5 shows a cross-sectional view of the package 6.
- a heat sink 16 is disposed on the lower surface of the lead frame 10 with an insulating layer 15 interposed therebetween. Heat generated from the power semiconductor element 9 is radiated to the outside through the heat radiating plate 16.
- the heat sink 16 and the lead frame 10 are required to be electrically insulated, so the insulating layer 15 is used as an intermediate layer. use.
- the insulating layer 15 it is desirable to use a resin having both heat dissipation and insulating properties.
- a high thermal conductive filler such as alumina or boron nitride can be used.
- control board 8 is attached to the third terminal 5 in the step shown in FIG. 2D, but the package 6 is placed on the work stage 3 as shown in FIG. In the process, the package 6 having the control board 8 already attached to the third terminal 5 can be mounted on the work stage 3 for manufacturing.
- the second terminal 4 of the package 6 is connected to the upper surface of the first terminal 1 on the case 2 side by the bonding material 7.
- the case The second embodiment is different from the first embodiment in that it is connected to the lower surface of the first terminal 1 on the second side by the bonding material 7. The rest is the same as in the first embodiment.
- the case 2 in the second embodiment has a partition wall 32 formed in the middle of the depth direction inside the case.
- An opening 33 is formed at the center of the partition wall 32.
- One end of the first terminal 1 is exposed on the lower surface of the partition wall 32 of the case 2.
- the second terminal 4 is closer to the mounting surface of the heat sink than the first terminal 1, that is, the second terminal 4 is positioned below the first terminal 1.
- the package 6 is placed on the work stage 3 and a solder paste or the like as the bonding material 7 is applied to the upper surface of the second terminal 4.
- the case 2 is placed on the work stage 3 and the case 2 is placed on the package 6.
- the first terminal 1 of the case 2 comes into contact with the second terminal 4 of the package 6 through the bonding material 7.
- the control board 8 provided with a through hole in advance is inserted into the third terminal 5 of the package 6 and electrically joined.
- the third terminal 5 and the control board 8 can be joined with solder, but generally Sn—Ag—Cu solder can be used for mounting.
- the semiconductor device 100 is completed by heating and cooling and soldering the first terminal 1 and the second terminal 4 via the bonding material 7.
- the bottom surfaces of the case 2 and the package 6 can be aligned.
- the mounting surface of the control board 8 can be mounted at substantially the same height. Therefore, an excessive stress is not applied to the connection portion between the control substrate 8 and the package 6, and variation in the thermal resistance of each package 6 is reduced, which is effective for improving the reliability of the semiconductor device.
- control board 8 is attached to the third terminal 5 in the step shown in FIG. 7C, but from the width W1 of the opening 33 formed in the partition wall 32 of the case 2.
- width W2 of the control board 8 is narrow, the package 6 in which the control board 8 is already attached to the third terminal 5 is mounted on the work stage 3 in the process of FIG. You can also.
- the first terminal 1 extending parallel to the bottom surface of the case 2 and the second terminal 4 extending parallel to the bottom surface of the package 6 are not contacted during the manufacturing process.
- the gap 31 is formed between the first terminal 1 and the second terminal 4 so as to be separated from each other.
- the directions of the first terminal 1 and the second terminal 4 are changed to the bottom surfaces of the first terminal 1 and the second terminal 4, respectively. Is to change the orientation of the first terminal 1 and the second terminal 4 in the vertical direction, so that the bottom surfaces of the case 2 and the package 6 can be moved even if the first terminal 1 and the second terminal 4 are in direct contact with each other. It becomes possible to align.
- the rest is the same as in the first and second embodiments.
- one end of the first terminal 1 is exposed inside the case 2 and is bent upward along the depth direction of the case 2.
- the other end of the first terminal 1 is drawn out through the case 2.
- the tip of the second terminal 4 drawn horizontally from the package 6 is bent upward along the depth direction of the case 2 and is in surface contact with the first terminal 1.
- the first terminal 1 and the second terminal 4 that are in surface contact with each other are electrically connected by, for example, direct caulking or ultrasonic bonding.
- the control board 8 provided with a through hole in advance is drawn out from the package 6, inserted into the third terminal 5 bent upward along the depth direction of the case 2, and joined by solder.
- FIGS. 9A to 9C show the manufacturing process.
- the package 6 is placed on the work stage 3 inside the case 2.
- the first terminal 1 and the second terminal 4 that are in surface contact with each other are electrically connected by, for example, direct caulking or ultrasonic bonding.
- the first terminal 1, the second terminal 4, and the third terminal 5 are all taken out in the same direction. That is, these terminals are arranged in a direction perpendicular to the bottom surface of the case 2 and the back surface of the package 6.
- control board 8 is inserted into the third terminal 5 and soldered.
- the first terminals 1 and the second terminals 4 are separated from each other so as not to contact each other.
- the case 2 and the package 6 are changed even if the first terminal 1 and the second terminal 4 are in contact with each other by changing the direction of each terminal in the direction perpendicular to the bottom surface. It is possible to align the bottom of the.
- the package 6 is inserted inside the case 2, it can be manufactured by placing the package 6 on the work table 3 first and then covering the case 2 outside the package 6.
- the first terminal 1 is pulled out upward of the case 2, and the second terminal 4 of the package 6 is also bent along the first terminal 1 upward of the case 2.
- the first terminal 1 may be pulled out below the case 2
- the second terminal 4 of the package 6 may be bent along the first terminal 1 toward the bottom of the case 2 to manufacture the semiconductor device. it can.
- the operation of joining the first terminal 1 and the second terminal 4 to each other by caulking or ultrasonic bonding is performed by bending the first terminal 1 and the second terminal 4 upward of the case 2 as shown in FIG. The workability is better when it is used.
- the first to third embodiments can be performed simultaneously in terms of no contradiction. Even in such a case, since the case and the package are placed using the same plane of the work table, excessive stress applied to the control board 8 is suppressed by aligning the bottom surface height of the package mounted on the case, and the heat sink. It is still possible to obtain the effect of aligning the thickness of the heat dissipating grease used in the mounting between the packages and suppressing variation in thermal resistance.
- the present invention contributes to higher performance of semiconductor devices used for power conversion applications such as inverters.
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Abstract
Description
図1(a)(b)は実施の形態1における半導体装置100の断面図と平面図である。
図6と図7(a)~図7(d)は本発明の実施の形態2を示す。
図8と図9(a)~図9(c)は本発明の実施の形態3を示す。
2 ケース
3 作業テーブル
4 第二の端子
5 第三の端子
6 パッケージ
7 接合材料
8 制御基板
9 パワー半導体素子
10 リードフレーム
11 ソース電極
12 ゲート電極
13 Al線
14 モールド樹脂
15 絶縁層
16 放熱板
17 正極端子
18 負極端子
19 出力端子
20 ねじ穴
30 ケースの底部の開口部
31 ケースの第一の端子とパッケージの第二の端子の間の隙間
32 ケース内側で深さ方向の中間に形成された仕切り壁
33 仕切り壁の中央の開口部
Claims (12)
- 内部にパワー半導体素子を搭載した複数のパッケージを、樹脂成型されたケース内部に配置した半導体装置を製造するに際し、
一端が内側底部に沿って引き出され前記パワー半導体素子と接続される第一の端子を有する前記ケースを、その底部の開口部を下にして作業テーブルに戴置し、
前記パワー半導体素子に接続された第二の端子を有する前記パッケージを、前記ケースの前記開口部を通して前記作業テーブルに戴置して、前記ケースの前記第一の端子と前記パッケージの前記第二の端子の間に隙間を形成し、
前記隙間に接合材料を介装して前記第一の端子と前記第二の端子を電気接続する
半導体装置の製造方法。 - 内部にパワー半導体素子を搭載した複数のパッケージを、樹脂成型されたケース内部に配置した半導体装置を製造するに際し、
前記パワー半導体素子に接続された第二の端子を有する前記パッケージを、前記第二の端子が作業テーブルに沿って伸びるように前記作業テーブルに戴置し、
一端が内側で深さ方向の中間位置に沿って引き出され前記パワー半導体素子と接続される第一の端子を有する前記ケースを、その底部の開口部を下にして前記パッケージに被せて前記作業テーブルに戴置して、前記ケースの前記第一の端子と前記パッケージの前記第二の端子の間に接合材料を介装して前記第一の端子と前記第二の端子を電気接続する
半導体装置の製造方法。 - 内部にパワー半導体素子を搭載した複数のパッケージを、樹脂成型されたケース内部に配置した半導体装置を製造するに際し、
一端が内側で深さ方向に引き出され前記パワー半導体素子と接続される第一の端子を有する前記ケースを、その底部の開口部を下にして作業テーブルに戴置し、
前記パワー半導体素子に接続され前記ケースの深さ方向に引き出された第二の端子を有する前記パッケージを、前記ケースの前記開口部を通して前記作業テーブルに戴置して、前記ケースの前記第一の端子と前記パッケージの前記第二の端子を接触させるとともに電気的に接合する
半導体装置の製造方法。 - 前記第一の端子と前記第二の端子を、接合材料としてSn系のはんだを加熱溶融させて接合することを特徴とする
請求項1または請求項2に記載の半導体装置の製造方法。 - 前記第二の端子にはSnを主成分とするめっきが施されていることを特徴とする
請求項1または請求項2に記載の半導体装置の製造方法。 - 前記第一の端子と前記第二の端子を、かしめまたは超音波接合によって接合することを特徴とする
請求項3に記載の半導体装置の製造方法。 - 前記パッケージは、前記ケースの深さ方向に沿って前記作業テーブルから離間する方向に引き出された第三の端子が設けられており、前記パッケージを前記作業テーブルに載置する前あるいは後に、前記パワー半導体素子に駆動信号を出力する回路が構築されている制御基板を、第三の端子に電気接続する
請求項1~請求項3の何れかに記載の半導体装置の製造方法。 - 前記第一の端子,前記第二の端子の何れかが、CuまたはCu合金からなることを特徴とする
請求項1~請求項3の何れかに記載の半導体装置の製造方法。 - 内部にパワー半導体素子を搭載した複数のパッケージを、樹脂成型されたケース内部に配置した半導体装置であって、
内部に搭載した前記パワー半導体素子に接続された第二の端子を有するパッケージと、
底部に前記パッケージの一部が露出する開口部が形成され、一端が内側底部に沿って引き出され前記第二の端子と接続される第一の端子を有するケースと、
前記ケースの前記第一の端子と前記パッケージの前記第2の端子との間の前記ケースの底部に沿った方向の隙間に介装されて前記第一の端子と前記パッケージの前記第2の端子を電気接続する接合材料と
を設けた半導体装置。 - 内部にパワー半導体素子を搭載した複数のパッケージを、樹脂成型されたケース内部に配置した半導体装置であって、
内部に搭載した前記パワー半導体素子に接続された第二の端子を有するパッケージと、
底部に前記パッケージの一部が露出する開口部が形成され、一端が内側で深さ方向の中間位置に沿って引き出され前記第二の端子と接続される第一の端子を有するケースと、
前記ケースの第一の端子と前記パッケージの前記第2の端子との間の前記ケースの底部に沿った方向の隙間に介装されて前記第一の端子と前記パッケージの前記第2の端子を電気接続する接合材料とを設けた
半導体装置。 - 内部にパワー半導体素子を搭載した複数のパッケージを、樹脂成型されたケース内部に配置した半導体装置であって、
内部に搭載した前記パワー半導体素子に接続された第二の端子を有するパッケージと、
底部に前記パッケージの一部が露出する開口部が形成され、一端が内側で深さ方向に引き出され前記パワー半導体素子と接続される第一の端子を有するケースと
を設け、かつ前記パッケージの前記第二の端子が、前記ケースの前記第一の端子に沿って前記深さ方向に延設されて前記第一の端子に接触すると共に、かしめまたは超音波接合によって前記第一の端子と前記第二の端子が電気接続されている
半導体装置。 - 前記パッケージは、前記ケースの深さ方向に沿って前記作業テーブルから離間する方向に引き出された第三の端子が設けられており、前記パワー半導体素子に駆動信号を出力する回路が構築されている制御基板が、前記第三の端子に電気接続されている
請求項9~請求項11の何れかに記載の半導体装置。
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JP2014515463A JP5895220B2 (ja) | 2012-05-15 | 2013-03-06 | 半導体装置の製造方法 |
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JP6093455B2 (ja) * | 2014-01-27 | 2017-03-08 | 株式会社日立製作所 | 半導体モジュール |
JP2019057611A (ja) * | 2017-09-21 | 2019-04-11 | 三菱電機株式会社 | 半導体装置および電力変換装置 |
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CN110168721B (zh) * | 2017-01-16 | 2022-12-27 | 三菱电机株式会社 | 半导体装置以及半导体装置的制造方法 |
JP6769556B2 (ja) * | 2017-07-28 | 2020-10-14 | 三菱電機株式会社 | 半導体装置及び半導体モジュール |
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