JPS5842259A - Ceramic package for semiconductor - Google Patents
Ceramic package for semiconductorInfo
- Publication number
- JPS5842259A JPS5842259A JP56139479A JP13947981A JPS5842259A JP S5842259 A JPS5842259 A JP S5842259A JP 56139479 A JP56139479 A JP 56139479A JP 13947981 A JP13947981 A JP 13947981A JP S5842259 A JPS5842259 A JP S5842259A
- Authority
- JP
- Japan
- Prior art keywords
- chip
- metal frames
- metal
- wires
- insulating material
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/02—Bonding areas ; Manufacturing methods related thereto
- H01L24/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L24/06—Structure, shape, material or disposition of the bonding areas prior to the connecting process of a plurality of bonding areas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
- H01L2224/0554—External layer
- H01L2224/0555—Shape
- H01L2224/05552—Shape in top view
- H01L2224/05554—Shape in top view being square
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48225—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
- H01L2224/48227—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/4912—Layout
- H01L2224/49171—Fan-out arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/494—Connecting portions
- H01L2224/4943—Connecting portions the connecting portions being staggered
- H01L2224/49431—Connecting portions the connecting portions being staggered on the semiconductor or solid-state body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/85—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a wire connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/00014—Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/013—Alloys
- H01L2924/014—Solder alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/14—Integrated circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/151—Die mounting substrate
- H01L2924/156—Material
- H01L2924/15786—Material with a principal constituent of the material being a non metallic, non metalloid inorganic material
- H01L2924/15787—Ceramics, e.g. crystalline carbides, nitrides or oxides
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Wire Bonding (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はワイヤボンディングの自動化が可能な多ビンx
CAgIケージに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a multi-bin x
Regarding the CAgI cage.
L81のケースは多くの矛盾す為要求を同時に満足させ
為必要がある。すなわち、(イ)多端子、(ロ)小形、
(ハ)曳好な放熱特性、(へ)プリント板装着時の取扱
い01FJ&さ、あ為いは自動化への適合、(ホ)低価
格、(へ)テVグ及びリー#POポyディングエ寝の自
動化などである。In the case of L81, there are many contradictory requirements, so it is necessary to satisfy them at the same time. In other words, (a) multi-terminal, (b) small size,
(c) Good heat dissipation characteristics, (f) Handling when printed board is installed, suitability for automation, (e) Low price, (f) TeVg and Li #PO Poyding automation, etc.
メモvLsxは一般に端子数が少なく、又、同一端子を
X%Yアドレスに共用することも可能で、従来t)DI
Pで大きな問題はな−0一方、論理LSIは回路構成上
必然的に入出力端子数が増大す為。マイク冨プ■セt!
%現在40ビン前後Oものが主であp%DIPK収容さ
れてい為が、今後、その高速化とビット数の増加の光め
に端子数の増大が必要となゐ。DIP形式ではその長さ
方向の寸法が端子数に比例して増大し、占有面積の増大
、リードインダクタンスの増加が著し%Ao仁の解決と
して4辺にビンを4つ正方形ケース0採用ヤ、ビン間隔
0100m11Thら!i 0iallへ0Jllz、
h。Memo vLsx generally has a small number of terminals, and it is also possible to share the same terminal for X%Y address.
There is no big problem with P-0On the other hand, logic LSI inevitably increases the number of input/output terminals due to its circuit configuration. Mike Tomi Set!
%Currently, DIPKs with around 40 bins are mainly accommodated, but in the future it will be necessary to increase the number of terminals in order to increase speed and increase the number of bits. In the DIP format, the lengthwise dimension increases in proportion to the number of terminals, resulting in an increase in occupied area and a significant increase in lead inductance.As a solution to this problem, a square case with four bins on each side is adopted. Bin spacing 0100m11Th et al! i 0iall to 0Jllz,
h.
あるいは3重ビン配列などが既に実用化された。Alternatively, a triple bin arrangement has already been put into practical use.
菖1図は従来の多ビyICパッケージO断面図−)と上
wlI(b)であ為。IIIにおいて1はセラセック基
板、2は−に’Jty/ml!KMo/Mm*Awze
Pt*jLg、Rd等の貴金属の粉末とガラスフリット
を有機バインダに分散させたペーストをスクリーンを通
して印刷し、゛焼成して貴金属の合金化、ガラス成分と
七う建ツクの融着を行9た厚膜である。3はセラty夕
基M1の孔にビンを挿入し、基板表面又は裏面と接す為
部分をかしめたビンであ為。Diagram 1 is a cross-sectional view of a conventional multi-vib IC package O-) and the upper figure (b). In III, 1 is Cerasec substrate, 2 is -'Jty/ml! KMo/Mm*Awze
A paste in which noble metal powder such as Pt*jLg, Rd and glass frit were dispersed in an organic binder was printed through a screen, and fired to alloy the noble metal and fuse the glass component and the structure. It is a thick film. Step 3: Insert a bottle into the hole of the cell assembly M1, and use the bottle with the part caulked to make contact with the front or back side of the board.
4aICチツプ5をマクントするハンダである。4a This is solder for mounting IC chip 5.
6はIC?y7上のポンディングパッド、7はポンディ
ングパッド6と厚膜の配M12との間のワイヤでTo為
。6 is IC? The bonding pad on y7, 7 is the wire between the bonding pad 6 and the thick film wiring M12.
ワイヤボンディング方式はこれまで手動が主体でTo9
九が、LSIのように電極数が増すにつれてオペレータ
の技能依存度の高iこの方法では、作業性中信頼性面で
問題があるため、オートポ/〆の一発がここ数年急速和
進められ、メ峰すやバI−ンm織機能をもった上々オー
ト、フルオートlンダが急速に畳及してきて匹る。Until now, the wire bonding method was mainly manual, and it was top 9.
However, as the number of electrodes increases like in LSI, the dependence on the operator's skill increases.This method has problems in terms of workability and reliability, so the use of autopolymerization/finishing has been rapidly promoted in recent years. , semi-automatic and fully automatic vehicles with automatic weaving functions are rapidly gaining popularity.
チップ、ボンディングの自動化はリードフレームを用い
る*m封止(毫−ルド)ICにつ一七。The automation of chip and bonding is based on sealed ICs that use lead frames.
既に以前から貴行されてV%為ところであ〕、ビン数の
比験的少な−モールドLSIについて適用されている。By the way, this method has already been proposed for some time and has been applied to molded LSIs with a relatively small number of bins.
しかし多ビンのセランシクケース入1L8Iにつ−て適
用は中中遅れた。However, the application of 1L8I in a multi-bottle cellanic case was delayed for some time.
七うfyタメタライズ方式は収縮率の関係で精度が出す
W鐘・何工程の1動化が困−と云う問題がありた。つt
LIc?ツブをセラ建、り基板に!ラントしてオートボ
ン〆でI C? yプ上のポンディングパッドの位置を
位置決めしても、セラセック基板上の厚模鵞のパターン
1’ll[が収縮率の関係で出な一為、所定のポンディ
ylが行えないと云う問題があった。The problem with the seven-fy metallization method was that it was difficult to integrate all the processes into one motion to achieve accuracy due to the shrinkage rate. Tsut
LIc? Build the whelk into a ceramic board! Is it IC with runt and autobon? Even if the position of the bonding pad on the y-plate is determined, the pattern 1'll of the thick pattern on the Cerasec substrate cannot be produced due to the shrinkage rate, so there is a problem that the predetermined bonding pad cannot be performed. there were.
本発明は、上述の点に鎌みeされたもので、配!!II
I及びチνプマクン)11に導電性の厚膜パターンを形
成し九セラ建ツク基板、該セラ建tり基板の孔に配設さ
れ該配*Sの厚g#c*続し九ビン、該チVプマウント
部にマクントされ友中導体チップ、皺半導体テVグのボ
yディンダパッyと鍍配線部間がワイヤで接続された半
導体セテ電vlパtケージにおいて、ノリ一二ンβされ
たメIル7一ムを保持する所定形状の絶縁材を該セラt
ツタ基板上に設は該配線部の厚膜と該メタル7レームの
一端とが電気的に接続され、該メタル7レームの他端と
骸半導体チップのポンプイングツ(ット0とがワイヤで
結線されたことを特徴とする半導体セラ建ツクパtケー
ジを提供するものである・ −以下本発明の実施例を詳
述する。The present invention addresses the above-mentioned points, and is arranged! ! II
A conductive thick film pattern is formed on 11 (I and chip) 11, and a conductive thick film pattern is formed on a nine cell-built substrate, which is arranged in the hole of the cell-built substrate, and the thickness of the layer *S is g#c* followed by nine bottles, The conductor chip mounted on the chip V mount part, the voided pad of the wrinkled semiconductor V board, and the plated wiring part were connected by wires in the semiconductor set electric VL package, and the glue was applied. The insulating material of a predetermined shape that holds the mail member 71 is
The thick film of the wiring part and one end of the metal 7 frame are electrically connected to each other on the vine board, and the other end of the metal 7 frame is connected to the pumping point (cut 0) of the skeleton semiconductor chip by a wire. Embodiments of the present invention will be described in detail below.
gigsは重置−の多ビンICパjケージの断面図−及
び上面l!gl伽)である、菖1図と同一部分にクーで
は同一符号を用いた。Gigs is a cross-sectional view and top view of a stacked multi-bin IC package! The same symbols were used in Kuu for the same parts as in Iris 1.
重置gliが従来と異thのは、第3図にその平面図で
示すようなメタル7レーム9を保持した耐熱性絶縁材を
セラtvり基板1上O所定位置に嬉雪図の如く耐熱性接
着剤で固定し、メタル7レーム9の一端をセライック基
[1上に印刷パメー轟ンダされた厚膜3或−はセラ々t
り基板の孔にかしめたビン3#/c低鵬点ロク又はワイ
ヤで接続し、他端をIC?y780ボンデイングバtド
・にワイヤ7で接続した点でTo為。The difference between the overlapping GLI and the conventional one is that the heat-resistant insulating material holding the metal 7 frame 9 is placed in a predetermined position on the substrate 1 as shown in the plan view in Fig. 3. The metal 7 frame 9 is fixed with adhesive, and one end of the metal 7 frame 9 is coated with a thick film 3 or ceramic film 3 printed on the ceramic base 1.
Connect the bottle 3#/c to the hole in the board with a low-point lock or wire, and connect the other end to the IC? At the point where wire 7 was connected to the Y780 bonding board.
メタルフレーム9はポリインド醇の耐熱性絶縁材8上に
精度良く位置決めされているのでICチップ5に対して
耐熱性絶縁材8を位置決めすることによI、IC?yプ
5のポンプイングツ(ラド6とメタルフレーム9のボン
ディング部とは精l!曳く位置決めされる。従ってオー
トポyデインダを信11度よく行うことができる。Since the metal frame 9 is precisely positioned on the heat-resistant insulating material 8 made of polyimide, by positioning the heat-resistant insulating material 8 with respect to the IC chip 5, I, IC? The pumping parts (the bonding portions of the Rad 6 and the metal frame 9) of the YP 5 are precisely positioned. Therefore, the autopolymerization can be carried out with high reliability.
8に3図の如きメタルフレームを保持した耐熱性絶縁材
は、例えはIフィルムキャリヤ方式によりフィルムテー
プに鋼(Cm)はくを張付轄、GOCllはくをホトエ
Vチンダしてフレームを形′成し、フィルムを所定形状
に工tチンダおよびプレスで打抜いたりして形成する。The heat-resistant insulating material holding the metal frame as shown in Figure 8 and 3 can be made by applying a steel (Cm) foil to the film tape using the I film carrier method, and then forming the frame by applying the GOCll foil to a hot V-cinder. Then, the film is formed into a predetermined shape by punching or punching with a press.
該メタルフレームと保持用の絶縁フィルムの基板上への
職付けはガイドホールを利用し、外部接続端子の少くと
も2本以上に挿入し位置決めを行うようにすれはよい。The metal frame and the holding insulating film can be placed on the substrate by using guide holes, and by inserting and positioning the metal frame into at least two or more external connection terminals.
菖1図は従来の多ビンセラ々VりICノ(ツケージO断
面図と平面図、第2図は本発明の多ピンセライックIC
パッケージのIf向図と平面図、菖3図は本発明に用い
る耐熱性絶縁材で保持されたメタルフレームの要部平面
図である。
1;セラミック基板、2:厚漢、
3:ピン、 4:半田、
5:ICチップ、 6:ボンディングパッド、7:
ワイヤ、 8:耐熱性絶縁材、9:メタルフレ
ーム。
一一枦一 イ C李]。
犀 2 門
奪3目
(a>Figure 1 is a cross-sectional view and plan view of a conventional multi-pin cell IC. Figure 2 is a cross-sectional view and plan view of a conventional multi-pin cell IC.
The If direction view and plan view of the package, and the 3rd figure are plan views of essential parts of a metal frame held by a heat-resistant insulating material used in the present invention. 1; Ceramic board, 2: Thick plate, 3: Pin, 4: Solder, 5: IC chip, 6: Bonding pad, 7:
Wire, 8: Heat resistant insulation material, 9: Metal frame. 11 I C Lee]. Rhinoceros 2 gate robber 3 eyes (a>
Claims (1)
を形成し九セラ々ツク基板、該セラ々ツタ基板O孔に配
設され該配線部の厚1lEK接続したピン、該チップマ
ウント部にマウントされ九半導体チップ、該半導体チッ
プのボンディングパット°ト該配11部間がワイヤで接
続され九半導体セッセVクパッケージにお−で、パター
ンエングされたメタル7レームを保持する所定形状O絶
縁材を該セラ建ツタ基覆上に設は該配線部の厚膜と皺メ
タル7レーム〇一端とが電気的Vcl!aされ、該メタ
ル7レームの他鴫と骸半導体チップのポンディyグパ!
Fド°とがワイヤで結線され九ことを特徴とする半導体
上う々ツタパッケージ。Arrangement part and test pin) IIK conductive military pin is formed on the ceramic board, the pin arranged in the O hole of the ceramic board and connected to the wiring part with a thickness of 11EK, and mounted on the chip mount part. The 9 semiconductor chips, the bonding pads of the semiconductor chips, and the 11 parts of the wiring are connected with wires, and the 9 semiconductor chips are placed in a V package, and an insulating material of a predetermined shape holding the patterned metal 7 frames is formed. The thick film of the wiring section and one end of the wrinkled metal 7 frame are connected to the electrical Vcl! A, and the metal 7 frame and other parts of the metal and the semiconductor chips are also included!
A semiconductor top package characterized by having F and ° connected with wires.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56139479A JPS5842259A (en) | 1981-09-04 | 1981-09-04 | Ceramic package for semiconductor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56139479A JPS5842259A (en) | 1981-09-04 | 1981-09-04 | Ceramic package for semiconductor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5842259A true JPS5842259A (en) | 1983-03-11 |
JPH022289B2 JPH022289B2 (en) | 1990-01-17 |
Family
ID=15246203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56139479A Granted JPS5842259A (en) | 1981-09-04 | 1981-09-04 | Ceramic package for semiconductor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5842259A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62106635A (en) * | 1985-11-01 | 1987-05-18 | Mitsubishi Electric Corp | Semiconductor device |
US5093282A (en) * | 1988-04-13 | 1992-03-03 | Kabushiki Kaisha Toshiba | Method of making a semiconductor device having lead pins and a metal shell |
JPH0489926U (en) * | 1990-02-14 | 1992-08-05 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5638846A (en) * | 1979-09-07 | 1981-04-14 | Fujitsu Ltd | Semiconductor device |
-
1981
- 1981-09-04 JP JP56139479A patent/JPS5842259A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5638846A (en) * | 1979-09-07 | 1981-04-14 | Fujitsu Ltd | Semiconductor device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62106635A (en) * | 1985-11-01 | 1987-05-18 | Mitsubishi Electric Corp | Semiconductor device |
US5093282A (en) * | 1988-04-13 | 1992-03-03 | Kabushiki Kaisha Toshiba | Method of making a semiconductor device having lead pins and a metal shell |
JPH0489926U (en) * | 1990-02-14 | 1992-08-05 | ||
JP2562090Y2 (en) * | 1990-02-14 | 1998-02-04 | 旭光学工業株式会社 | Field-of-view adjustment device for real image finder |
Also Published As
Publication number | Publication date |
---|---|
JPH022289B2 (en) | 1990-01-17 |
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