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JPS60262475A - Photo-coupler - Google Patents

Photo-coupler

Info

Publication number
JPS60262475A
JPS60262475A JP59118425A JP11842584A JPS60262475A JP S60262475 A JPS60262475 A JP S60262475A JP 59118425 A JP59118425 A JP 59118425A JP 11842584 A JP11842584 A JP 11842584A JP S60262475 A JPS60262475 A JP S60262475A
Authority
JP
Japan
Prior art keywords
light
substrate
receiving element
printed wiring
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP59118425A
Other languages
Japanese (ja)
Inventor
Hikoo Nakamura
中村 比古夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP59118425A priority Critical patent/JPS60262475A/en
Publication of JPS60262475A publication Critical patent/JPS60262475A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/12Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
    • H01L31/16Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)

Abstract

PURPOSE:To miniaturize lead structure and elements by incorporating each light- emitting and light-receiving element into printed wiring substrate in the frame of a laminate, in which the printed wiring substrate and a frame type insulating substrate for a resin seal are laminated in a multi-throw manner, and sealing the elements by an optical reflective substance. CONSTITUTION:A light-transmitting resin 8 for protecting a light-emitting element 6, a light-receiving element 7 and bonding wires for each element is injected to the internal section of a frame surrounded by a ceramic printed wiring substrate 1 and a frame type ceramic substrate 5 and cured, an optical reflective substance 9 is fitted onto the surface of the resin 8, and beams from the light-emitting element 6 are reflected efficiently toward the light-receiving element 7. The optical reflective substance is also mounted onto the inner surface of the substrate 5, and the efficiency of reflection of the inner surface is improved. Through-holes 4 are used for conducting wiring sections 2 as electrodes for bonding and back-side wiring sections 3 as electrodes for soldering.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は発光素子と受光素子とを光軸結合して組合わせ
、入出力間を電気的には分離したまま信号のみを伝達す
るホトカプラに関するものである。
[Detailed Description of the Invention] Industrial Application Field The present invention relates to a photocoupler that combines a light-emitting element and a light-receiving element by optical axis coupling, and transmits only signals while electrically separating input and output. be.

従来例の構成とその問題点 従来のホトカプラはそのほとんどがリードフレームに発
光素子と受光素子とを対峙させて搭載したもので、その
外形はデュアルインラインパッケージを採用している。
Conventional configurations and their problems Most conventional photocouplers have a light-emitting element and a light-receiving element mounted on a lead frame, facing each other, and adopt a dual in-line package.

しかしながら電子機器の小型化、高信頼化を進めるため
にはさらに小型、高信頼性かつ組立自動化に適したホト
カプラが必要となっている。
However, in order to advance the miniaturization and higher reliability of electronic devices, there is a need for photocouplers that are smaller, more reliable, and suitable for assembly automation.

発明の目的 本発明は、小型化、冒信頼化はもとより、量産化および
組立て自動化にすぐれたホトカプラを提供するものであ
る。
OBJECTS OF THE INVENTION The present invention provides a photocoupler that is not only compact and reliable, but also suitable for mass production and assembly automation.

発明の構成 この目的を達成するために本発明のホトカプラば、スル
ーホールにて電気的導通を持たせたボンディング用電極
および半田付は用電極を有する印刷配線基板と樹脂封止
用の枠型の絶縁基板とを多連状で積層したものにその枠
内部で前記印刷配線基板に発光素子および受光素子を組
み込み、光反射性物質で封止したものであり、これによ
り、外部リード構造の微小化と、素子自体の超小型化が
実現される。
Structure of the Invention In order to achieve this object, the photocoupler of the present invention comprises a printed wiring board having a bonding electrode and a soldering electrode that have electrical continuity through a through hole, and a frame type for resin sealing. A light-emitting element and a light-receiving element are incorporated into the printed wiring board inside the frame of a multi-layer stack of insulating substrates and sealed with a light-reflecting material, thereby miniaturizing the external lead structure. As a result, the device itself can be miniaturized.

実施例の説明 以下、本発明の一実施例について図面を参照しながら説
明する。
DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

まず第1図は本発明の積層前の両糸板構造を示す展開図
である。第1図において、セラミック印刷配線基板1は
複数配線部2,3のそれぞれに、タングステンメタライ
ズのスルーホール電極4を形成したもので、これに枠型
のセラミック基板6を積層する。
First, FIG. 1 is a developed view showing the structure of both yarn plates before lamination according to the present invention. In FIG. 1, a ceramic printed wiring board 1 has tungsten metallized through-hole electrodes 4 formed in each of a plurality of wiring parts 2 and 3, and a frame-shaped ceramic board 6 is laminated thereon.

次に、各配線部2,3およびスルーホール電極4に対し
ては、それぞれ、Ni またはAuまたはAqメッキを
施し、ボンディング可能な電極を形成した後、発光素子
6および受光素子7を光軸結合状態で、それぞれ、各配
線部上にダイスボンディングし、さらに、リード線結合
のだめのワイヤボンディングを行う。この状態での斜視
図を第2図に示す。
Next, each wiring part 2, 3 and through-hole electrode 4 are plated with Ni, Au, or Aq to form a bondable electrode, and then the light emitting element 6 and the light receiving element 7 are optically coupled. In this state, die bonding is performed on each wiring portion, and further wire bonding is performed to connect the lead wires. A perspective view in this state is shown in FIG.

さらに第3図は本発明の完成品を断面図で示すものであ
る。第3図において、ベースとなるセラミック印刷配線
基板1と枠型のセラミック基板6とで囲まれた枠内部の
部分には発光素子6.受光素子7およびこれらのボンデ
ィングワイヤを保護するための光透過性樹脂8を注入硬
化しており、その表面には光反射性物質9を設けて発′
yt、素子からの光が受光素子にむけて効率良く反射さ
れるようにする。さらに枠型のセラミック基板5の内面
にも光反射性物質を設けてその反射効率を高めてもよい
。またスルーホール4はボンディング用電極となる配線
部2と半田付は用電極となる裏面側配線部3とを導通さ
せるためのものである。
Further, FIG. 3 shows a sectional view of the finished product of the present invention. In FIG. 3, a light emitting element 6. A light-transmitting resin 8 for protecting the light-receiving element 7 and these bonding wires is injected and hardened, and a light-reflecting substance 9 is provided on the surface of the resin 8 to protect the light-receiving element 7 and these bonding wires.
yt, so that light from the element is efficiently reflected toward the light receiving element. Furthermore, a light-reflecting material may be provided on the inner surface of the frame-shaped ceramic substrate 5 to increase its reflection efficiency. The through hole 4 is used to establish electrical continuity between the wiring portion 2, which will serve as a bonding electrode, and the backside wiring portion 3, which will serve as a soldering electrode.

第4図は本発明の上記の光反射性物質9を設ける以前の
多連状態を示す図であり、また、この図中、1oは光反
射性物質9を設けた後のダイシングラインであり、この
ラインに沿って切断すれば、ホトカプラの単体が分離さ
れる。
FIG. 4 is a diagram showing a multiple state before the above-mentioned light-reflective material 9 of the present invention is provided, and in this figure, 1o is a dicing line after the light-reflective material 9 is provided, By cutting along this line, the single photocoupler can be separated.

発明の効果 本発明によると、次のような効果をあげる。Effect of the invention According to the present invention, the following effects can be achieved.

(1)従来の外部リード(ピン)構造にくらべ、チップ
ボンド構造であシ、超小型が可能である。
(1) Compared to the conventional external lead (pin) structure, the chip bond structure allows for ultra-small size.

(2)一枚のシートに集積するため製造および検査ライ
ンが自動化可能であり量産性が高い。
(2) Since the materials are assembled on a single sheet, the manufacturing and inspection lines can be automated, and mass productivity is high.

(3)一枚のシートに集積するため品質が均一化され信
頼性が上がる。
(3) Since the materials are collected on one sheet, the quality is made uniform and reliability is improved.

(4)従来のチップ部品と類似であシテーピング包装が
可能であるためユーザーでの組立作業が自動化できる。
(4) Since it is similar to conventional chip parts and can be packaged using taping, the assembly work by the user can be automated.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明実施例要部の積層前の両基板の構造展開
図、第2図は各素子の組み込み状態の斜視図、第3図は
本発明実施例完成品の断面図、第4図は多連シート状に
おける光透過性樹脂を注入硬化した状態での斜視図であ
る。 1・・・・・・セラミック印刷配線基板、2・・・・・
・ボンディング用電極配線部、計・・・・・半田付は用
電極配線部、4・・・・・・スルーホール電極、5・・
・・・・枠型セラミック基板、6・・・・・・発光素子
、7・・・・・・受光素子、8・・・・・・光通過性樹
脂、9・・・・・・光反射性物質。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名第1
図 第2図
Fig. 1 is a structural development view of both substrates before lamination of the main parts of the embodiment of the present invention, Fig. 2 is a perspective view of the assembled state of each element, Fig. 3 is a sectional view of the completed product of the embodiment of the invention, Fig. 4 The figure is a perspective view of a state in which a light-transmitting resin is injected and hardened in a multi-sheet form. 1...Ceramic printed wiring board, 2...
・Electrode wiring part for bonding, total...Electrode wiring part for soldering, 4...Through-hole electrode, 5...
... Frame-shaped ceramic substrate, 6 ... Light emitting element, 7 ... Light receiving element, 8 ... Light transmitting resin, 9 ... Light reflection sexual substance. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2

Claims (1)

【特許請求の範囲】[Claims] 印刷配線基板と枠型の絶縁基板とを積層し、この枠内部
の印刷配線基板上に発光素子および受光素子を互いに光
軸結合させて搭載したホトカプラ。
A photocoupler in which a printed wiring board and a frame-shaped insulating board are laminated, and a light emitting element and a light receiving element are mounted on the printed wiring board inside the frame with optical axes coupled to each other.
JP59118425A 1984-06-08 1984-06-08 Photo-coupler Pending JPS60262475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59118425A JPS60262475A (en) 1984-06-08 1984-06-08 Photo-coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59118425A JPS60262475A (en) 1984-06-08 1984-06-08 Photo-coupler

Publications (1)

Publication Number Publication Date
JPS60262475A true JPS60262475A (en) 1985-12-25

Family

ID=14736322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59118425A Pending JPS60262475A (en) 1984-06-08 1984-06-08 Photo-coupler

Country Status (1)

Country Link
JP (1) JPS60262475A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005502205A (en) * 2001-08-31 2005-01-20 フェアチャイルド セミコンダクター コーポレイション Surface mountable optical coupling device package
DE19733996B4 (en) * 1997-08-06 2006-03-23 Leuze Electronic Gmbh & Co Kg Optoelectronic sensor
US7030359B2 (en) 2002-03-07 2006-04-18 CiS Institut für Mikrosensorik gGmbH Sensor detecting reflected light and method for its manufacture

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19733996B4 (en) * 1997-08-06 2006-03-23 Leuze Electronic Gmbh & Co Kg Optoelectronic sensor
JP2005502205A (en) * 2001-08-31 2005-01-20 フェアチャイルド セミコンダクター コーポレイション Surface mountable optical coupling device package
US7030359B2 (en) 2002-03-07 2006-04-18 CiS Institut für Mikrosensorik gGmbH Sensor detecting reflected light and method for its manufacture
DE10309747B4 (en) * 2002-03-07 2011-11-24 CiS Institut für Mikrosensorik gGmbH Auflichtsensor and method for its preparation

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