JPH01179351A - Plastic-molded semiconductor device and its manufacture - Google Patents

Plastic-molded semiconductor device and its manufacture

Info

Publication number
JPH01179351A
JPH01179351A JP33572287A JP33572287A JPH01179351A JP H01179351 A JPH01179351 A JP H01179351A JP 33572287 A JP33572287 A JP 33572287A JP 33572287 A JP33572287 A JP 33572287A JP H01179351 A JPH01179351 A JP H01179351A
Authority
JP
Japan
Prior art keywords
semiconductor device
resin
device chip
sealed
support bars
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
Application number
JP33572287A
Other languages
Japanese (ja)
Other versions
JP2589520B2 (en
Inventor
Mitsutaka Sato
光孝 佐藤
Toshiyuki Yoda
敏幸 誉田
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP62335722A priority Critical patent/JP2589520B2/en
Publication of JPH01179351A publication Critical patent/JPH01179351A/en
Application granted granted Critical
Publication of JP2589520B2 publication Critical patent/JP2589520B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means 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
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481Disposition
    • H01L2224/48151Connecting 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
    • H01L2224/48221Connecting 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
    • H01L2224/48245Connecting 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 metallic
    • H01L2224/48247Connecting 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 metallic connecting the wire to a bond pad of the item

Landscapes

  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Lead Frames For Integrated Circuits (AREA)
  • Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
  • Die Bonding (AREA)

Abstract

PURPOSE:To prevent a crack from being produced by fixing a semiconductor device chip in such a way that its two sides are bonded to support bars. CONSTITUTION:A lead frame 7 having two or more support bars 6 and two or more leads 4 is fixed to a bonding stage 9 by using a lead-frame pressure plate 8. Then, a semiconductor device chip 2 is placed between the two or more support bars 6 and is bonded to the support bars 6 by using an adhesive 10. Then, while the bonding stage 9 is being heated, pad terminals 2a of the semiconductor device chip 2 and the leads 4 are connected by using bonding wires 11. Then, the semiconductor device chip 2, the support bars 6 and the leads 4 are molded collectively by using a resin 5 and are resin-sealed. By this setup, because a metal does not exist inside the sealing resin, a crack of the resin due to the difference in a coefficient of thermal expansion between the metal and the resin is not produced; the moistureproofness is not lowered; the reliability is enhanced.

Description

【発明の詳細な説明】 〔概要〕 樹脂封止型半導体装置の構造的改良とその製造方法の改
良とに関し、 樹脂のクラック発生を防止し、耐湿性を低下させること
なく、信軒性の高い樹脂封止型半導体装置とその製造方
法とを提供することを目的とし、複数のサポートバーと
、複数のリードとを有するリードフレームを、リードフ
レーム押さえをもってボンディングステージ上に固定し
、半導体装置チップを前記複数のサポートバーの中間に
載置し、接着材をもって、前記半導体装置チップと前記
サポートバーとを接着し、前記半導体装置チップのパッ
ド端子と前記リードとを、ボンディングワイヤをもって
接合し、前記半導体装置チップと、サポートバーと、リ
ードとを、樹脂をもって一体にモールドし、樹脂封止型
半導体装置を形成するように構成する。
[Detailed Description of the Invention] [Summary] Regarding the structural improvement of a resin-sealed semiconductor device and the improvement of its manufacturing method, the present invention relates to a structural improvement of a resin-encapsulated semiconductor device and an improvement of its manufacturing method. The purpose of the present invention is to provide a resin-encapsulated semiconductor device and a method for manufacturing the same, in which a lead frame having a plurality of support bars and a plurality of leads is fixed on a bonding stage with a lead frame holder, and a semiconductor device chip is attached. The semiconductor device chip is placed between the plurality of support bars, the semiconductor device chip and the support bar are bonded together using an adhesive, the pad terminals of the semiconductor device chip and the leads are bonded using bonding wires, and the semiconductor device chip is placed between the plurality of support bars. The device chip, the support bar, and the leads are integrally molded with resin to form a resin-sealed semiconductor device.

〔産業上の利用分野〕[Industrial application field]

本発明は、樹脂封止型半導体装置の構造的改良とその製
造方法の改良とに関する。
The present invention relates to structural improvements in resin-sealed semiconductor devices and improvements in their manufacturing methods.

〔従来の技術〕[Conventional technology]

従来技術に係る樹脂封止型の半導体装置の構造を第4図
(a)、(b)、(c)に示す。
The structure of a resin-sealed semiconductor device according to the prior art is shown in FIGS. 4(a), 4(b), and 4(c).

第4図(a)は、樹脂封止型半導体装置1の平面図であ
り、第4図(b)は、第4図(a)のD−Dをもって示
す面をもって切断した断面図であり、第4図(c)は、
第3図(a)のE−Eをもって示す面をもって切断した
断面図である0図において、lは樹脂封止型半導体装置
であり、2は半導体装置チップであり、3はリードフレ
ームステージであり、4はリードであり、5は封止用樹
脂であり、11はボンディングワイヤである。
FIG. 4(a) is a plan view of the resin-sealed semiconductor device 1, and FIG. 4(b) is a cross-sectional view taken along the plane indicated by DD in FIG. 4(a). Figure 4(c) is
In Figure 0, which is a cross-sectional view taken along the plane indicated by E-E in Figure 3(a), 1 is a resin-sealed semiconductor device, 2 is a semiconductor device chip, and 3 is a lead frame stage. , 4 is a lead, 5 is a sealing resin, and 11 is a bonding wire.

半導体装置チップ2は金属よりなるリードフレームステ
ージ3上に接着され、半導体装置チップ2のパッド端子
(図示せず)とリード4とがボンディングワイヤ11を
もって接合され、半導体装置チップ2と、リードフレー
ムステージ3と、リード4とが樹脂5をもって一体にモ
ールドされ、封止されている。
The semiconductor device chip 2 is bonded on a lead frame stage 3 made of metal, and the pad terminals (not shown) of the semiconductor device chip 2 and the leads 4 are bonded with bonding wires 11, and the semiconductor device chip 2 and the lead frame stage 3 and leads 4 are integrally molded with resin 5 and sealed.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

ところで、樹脂封止された半導体装置は、封止樹脂内部
に金属よりなるリードフレームステージ3を内在するた
め、熱衝撃が加わった場合、金属と樹脂との熱膨張率の
差によって、樹脂5とリードフレームステージ3とが剥
離する。特に、リードフレームステージ3の角の部分に
は、応力が集中してクラックが発生し、そのクラックが
外面にまで成長して割れとなり、耐湿性を悪くし、半導
体装置の信鯨性を低下させる。
By the way, since a resin-sealed semiconductor device includes a lead frame stage 3 made of metal inside the sealing resin, when a thermal shock is applied, the difference in thermal expansion coefficient between the metal and the resin causes the resin 5 to The lead frame stage 3 separates. In particular, stress concentrates on the corner portions of the lead frame stage 3, causing cracks, which grow to the outer surface and become cracks, impairing moisture resistance and reducing reliability of the semiconductor device. .

本発明の目的は、この欠点を解消することにあり、樹脂
のクラック発生を防止し、耐湿性を低下させることなく
、信幀性の高い樹脂封止型半導体装置とその製造方法と
を提供することにある。
An object of the present invention is to eliminate this drawback, and to provide a highly reliable resin-encapsulated semiconductor device that prevents the occurrence of cracks in the resin and does not reduce moisture resistance, and a method for manufacturing the same. There is a particular thing.

〔間即点を解決するための手段〕[Means for solving the problem]

上記の目的は、複数のサポートバー(6)と、複数のリ
ード(4)とを有するリードフレーム(7)を、リード
フレーム押さえ(8)をもってボンデインダステージ(
9)上に固定し、半導体装置チップ(2)を前記複数の
サポートバー(6)の中間に載置し、接着材(10)を
もって、前記半導体装置チップ(2)と前記サポートバ
ー(6)とを接着し、 前記半導体装置チップ(2)のパッド端子(2a)と前
記リード(4)とを、ボンディングワイヤ(11)をも
って接合し、 前記半導体装置チップ(2)と、サポートバー(6)と
、リード(4)とを、樹脂(5)をもって一体にモール
ドし、樹脂封止型半導体装置を形成することによって達
成される。
The above purpose is to hold a lead frame (7) having a plurality of support bars (6) and a plurality of leads (4) on a bonder stage (with a lead frame holder (8)).
9) Place the semiconductor device chip (2) between the plurality of support bars (6), and hold the adhesive (10) between the semiconductor device chip (2) and the support bars (6). bonding the pad terminal (2a) of the semiconductor device chip (2) and the lead (4) with a bonding wire (11); and bonding the semiconductor device chip (2) and the support bar (6). This is achieved by integrally molding the lead (4) and the resin (5) to form a resin-sealed semiconductor device.

〔作用〕[Effect]

本発明に係る樹脂封止型半導体装置にあっては、半導体
装置チップ2を載置するための金属よりなるリードフレ
ームステージ3を使用せず、半導体装1チツプ2は、そ
の側面の少なくとも二つがサポートパー6に接着される
ことによって固定される。したがって、樹脂封止型半導
体装置の対土用樹脂の内部には、金属が内在しないので
、金属と樹脂との熱膨張率の差にもとづくクラックの発
生がなく、樹脂封止型半導体装置の信頼性が向上する。
In the resin-sealed semiconductor device according to the present invention, the lead frame stage 3 made of metal on which the semiconductor device chip 2 is placed is not used, and the semiconductor device 1 chip 2 has at least two side surfaces. It is fixed by being glued to the support par 6. Therefore, since there is no metal inside the soil-containing resin of the resin-sealed semiconductor device, cracks do not occur due to the difference in coefficient of thermal expansion between the metal and the resin, and the resin-sealed semiconductor device is reliable. Improves sex.

(実施例〕 以下、図面を参照しつ一1本発明の二つの実施例に係る
樹脂封止型半導体装置について説明する。
(Embodiments) Hereinafter, resin-sealed semiconductor devices according to two embodiments of the present invention will be described with reference to the drawings.

1上斑 第2図(a)、(b)参照 第2図(a)は平面図であり、第2図(b)は第2図(
a)のC−Cをもって示す面をもって切断した断面図で
ある。
1. See Figures 2(a) and (b). Figure 2(a) is a plan view, and Figure 2(b) is a top view of Figure 2(b).
FIG. 3 is a cross-sectional view taken along the plane shown along line CC in a).

複数のサポートパー6と、複数のり−ド4とを有するリ
ードフレーム7を、リードフレーム押さえ8をもってボ
ンディングステージ9上に固定する。
A lead frame 7 having a plurality of support pads 6 and a plurality of glueds 4 is fixed on a bonding stage 9 with a lead frame presser 8.

半導体装置チップ2を、複数のサポートパー6の間に載
置し、接着剤10をもってサポートパー6に接着する。
A semiconductor device chip 2 is placed between a plurality of support pads 6 and adhered to the support pads 6 with an adhesive 10.

ボンデインダステージ9を加熱しつ−、半導体装置チッ
プ2のバッド端子2aとリード4を、ボンディングワイ
ヤ11をもって接合する。なお、接合時の加熱によって
、前記半導体装置チップ2とサポートパー6とを接着す
る接着剤10が硬化する。
While heating the bonder stage 9, the pad terminals 2a of the semiconductor device chip 2 and the leads 4 are bonded using the bonding wires 11. Note that the adhesive 10 for bonding the semiconductor device chip 2 and the support pad 6 is cured by heating during bonding.

第1図(a)、(b)、(c)参照 半導体装置チップ2、サポートパー6、および、リード
4を、樹脂5をもって一体にモールドし、樹脂封止する
。なお、第1図(a)は平面図を、第1図(b)はA−
A断面図を、第1図(c)はB−B断面図を示す。
Refer to FIGS. 1(a), (b), and (c). The semiconductor device chip 2, the support part 6, and the leads 4 are integrally molded with a resin 5 and sealed with the resin. In addition, FIG. 1(a) is a plan view, and FIG. 1(b) is an A-
A sectional view is shown, and FIG. 1(c) is a BB sectional view.

員l拠 第3図(a)、(b)参照 第3図(a)は、半導体装置チップ2がサポートパー6
に接着固定された部分を示す平面図であり、第3図(b
)は、半導体装置チップ2がサポートパー6に接着固定
された部分を示す側面図である。
Refer to FIGS. 3(a) and 3(b). In FIG. 3(a), the semiconductor device chip 2 is placed on the support part 6.
FIG. 3 is a plan view showing a portion adhesively fixed to the
) is a side view showing a portion where the semiconductor device chip 2 is adhesively fixed to the supporter 6.

第1例と相違する点は、半導体装置チップ2とサポート
パー6とを接着する工程を、以下のとおり変更する点で
ある。
The difference from the first example is that the process of bonding the semiconductor device chip 2 and the support pad 6 is changed as follows.

サポートパー6の先端部に、平面図が梯形状のポリイミ
ドテープ12を接着し、半導体装置チップ2の側面の少
なくとも二つ(本例においては二つの対向する側面)が
、それぞれ前記ポリイミドテープ12上に位置するよう
に載置し、接着材10をもって半導体装置チップ2と、
ポリイミドテープ12と、サポートパー6とを接着する
A polyimide tape 12 having a ladder-like plan view is adhered to the tip of the support par 6, and at least two of the side surfaces (in this example, two opposing sides) of the semiconductor device chip 2 are bonded onto the polyimide tape 12, respectively. the semiconductor device chip 2 and the adhesive 10.
The polyimide tape 12 and the support par 6 are bonded together.

なお、サポートパー6の先端部およびポリイミドテープ
12の形状は、第2図および第3図に示す形状に限定さ
れるものではなく、半導体装置チップと良好に接着し得
る形状であればよい。
Note that the shapes of the tip of the support par 6 and the polyimide tape 12 are not limited to the shapes shown in FIGS. 2 and 3, but may be any shape that can be well bonded to the semiconductor device chip.

〔発明の効果〕〔Effect of the invention〕

以上説明せるとおり、本発明に係る樹脂封止型半導体装
置、およびその製造方法においては、半導体装置チップ
は、その側面の少なくとも二つがサポートパーに接着さ
れ固定されるので、半導体装置チップ下部に半導体装置
チップを載置する、金属よりなるリードフレームステー
ジを必要としない。
As explained above, in the resin-sealed semiconductor device and the manufacturing method thereof according to the present invention, at least two of the side surfaces of the semiconductor device chip are bonded and fixed to the supporter, so that the semiconductor device chip is attached to the bottom of the semiconductor device chip. There is no need for a metal lead frame stage on which the device chip is placed.

樹脂封止型半導体装置の封止樹脂内部に金属が内在しな
いため、金属と樹脂との熱膨張率の差に起因する樹脂の
クラック発生がなく、したがって、耐湿性が低下せず、
借問性が向上する。
Since there is no metal inside the sealing resin of the resin-sealed semiconductor device, there is no cracking of the resin due to the difference in thermal expansion coefficient between the metal and the resin, and therefore the moisture resistance does not deteriorate.
Improves borrowability.

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

第1図(a)は、本発明の第1実施例に係る樹脂封止型
半導体装置の平面図である。 第1図(b)は、第1図(a)のA−Aをもって示す面
をもって切断した断面図である。 第1図(c)は、第1図(a)のB−Bをもッテ示す面
をもって切断した断面図である。 第2図(a)は、本発明の第1実施例に係る樹脂封止型
半導体装置の工程を示す平面図である。 第2図(b)は、第2図(a)のC−Cをもッテ示す面
をもって切断した断面図である。 第3図(a)は、本発明の第2実施例に係る樹脂、封止
型半導体装置の半導体装置チップとサポートバーとの接
着部の構造を示す平面図である。 第3図(b)は、本発明の第2実施例に係る樹脂封止型
半導体装置の半導体装置チップとサポートバーとの接着
部の構造を示す側面図である。 第4図(a)は、従来技術に係る樹脂封止型半導体装置
の外形図である。 第4図(b)は、第4図(a)のD−Dをもって示す面
をもって切断した断面図である。 第4図(c)は、第4図(a)のE−Eをもッテ示す面
をもって切断した断面図である。 1・・・・樹脂封止型半導体装置、 2・・・・半導体装置チップ、 2a・・・半導体装置チップのパッド端子、3・・・・
リードフレームステージ、 4 ・ ・ ・ ・ リード、 5・・・・樹脂、 6・・・・サポートバー、 7・ ・ ・・リードフレーム、 8・・・・リードフレーム押さえ、 9・・・・ボンデインダステージ、 10・・・・接着剤、 11・・・・ボンディングワイヤ、 12・・・・ポリイミドテープ。
FIG. 1(a) is a plan view of a resin-sealed semiconductor device according to a first embodiment of the present invention. FIG. 1(b) is a sectional view taken along the plane indicated by A--A in FIG. 1(a). FIG. 1(c) is a sectional view taken along line BB in FIG. 1(a). FIG. 2(a) is a plan view showing the steps of the resin-sealed semiconductor device according to the first embodiment of the present invention. FIG. 2(b) is a sectional view taken along the line CC in FIG. 2(a). FIG. 3(a) is a plan view showing the structure of a bonded portion between a semiconductor device chip and a support bar of a resin-sealed semiconductor device according to a second embodiment of the present invention. FIG. 3(b) is a side view showing the structure of the adhesive portion between the semiconductor device chip and the support bar of the resin-sealed semiconductor device according to the second embodiment of the present invention. FIG. 4(a) is an outline diagram of a resin-sealed semiconductor device according to the prior art. FIG. 4(b) is a sectional view taken along the plane indicated by line DD in FIG. 4(a). FIG. 4(c) is a sectional view taken along the line EE in FIG. 4(a). 1... Resin-sealed semiconductor device, 2... Semiconductor device chip, 2a... Pad terminal of semiconductor device chip, 3...
Lead frame stage, 4... Lead, 5... Resin, 6... Support bar, 7... Lead frame, 8... Lead frame holder, 9... Bonder. Stage, 10... Adhesive, 11... Bonding wire, 12... Polyimide tape.

Claims (1)

【特許請求の範囲】 [1]半導体装置チップ(2)が樹脂(5)をもって封
止されてなる樹脂封止型半導体装置(1)において、 前記半導体装置チップ(2)は、その側面の少なくとも
二つがサポートバー(6)に接着固定されている ことを特徴とする樹脂封止型半導体装置。 [2]前記少なくとも二つのサポートバー(6)と複数
のリード(4)とを有するリードフレーム(7)を、リ
ードフレーム押さえ(8)をもってボンディングステー
ジ(9)上に固定し、 半導体装置チップ(2)を前記少なくとも二つのサポー
トバー(6)の中間に載置し、 接着材(10)をもって、前記半導体装置チップ(2)
の側面の少なくとも二つと前記サポートバー(6)とを
接着し、 前記半導体装置チップ(2)のパッド端子(2a)と前
記リード(4)とを、ボンディングワイヤ(11)をも
って接合し、前記サポートバー(6)が前記半導体装置
チップ(2)に接着され、前記ボンディングワイヤ(1
1)が前記半導体装置チップ(2)のパッド端子(2a
)に接続されている結合体をボンディングステージ(9
)から離し、前記半導体装置チップ(2)と、サポート
バー(6)と、リード(4)とを、樹脂(5)をもって
一体にモールドし、樹脂封止型半導体装置を形成する 工程を有することを特徴とする樹脂封止型半導体装置の
製造方法。 [3]前記サポートバー(6)には、その先端部にポリ
イミドテープ(12)が接着されてなり、前記半導体装
置チップ(2)の側面と、前記サポートバー(6)と、
前記ポリイミドテープ(12)とを接着材(10)をも
って接着し、固定することを特徴とする特許請求の範囲
第2項記載の樹脂封止型半導体装置の製造方法。
[Claims] [1] In a resin-sealed semiconductor device (1) in which a semiconductor device chip (2) is sealed with a resin (5), the semiconductor device chip (2) has at least one side surface thereof. A resin-sealed semiconductor device characterized in that two parts are adhesively fixed to a support bar (6). [2] The lead frame (7) having the at least two support bars (6) and a plurality of leads (4) is fixed on the bonding stage (9) with the lead frame holder (8), and the semiconductor device chip ( 2) is placed between the at least two support bars (6), and the semiconductor device chip (2) is held with the adhesive (10).
and the support bar (6), bonding the pad terminal (2a) of the semiconductor device chip (2) and the lead (4) with a bonding wire (11), A bar (6) is bonded to the semiconductor device chip (2) and the bonding wire (1) is bonded to the semiconductor device chip (2).
1) is a pad terminal (2a) of the semiconductor device chip (2).
) to the bonding stage (9
) and molding the semiconductor device chip (2), the support bar (6), and the leads (4) together with a resin (5) to form a resin-sealed semiconductor device. A method for manufacturing a resin-sealed semiconductor device, characterized by: [3] A polyimide tape (12) is adhered to the tip of the support bar (6), and the side surface of the semiconductor device chip (2), the support bar (6),
3. The method of manufacturing a resin-sealed semiconductor device according to claim 2, wherein the polyimide tape (12) is bonded and fixed with an adhesive (10).
JP62335722A 1987-12-30 1987-12-30 Method for manufacturing resin-encapsulated semiconductor device Expired - Lifetime JP2589520B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62335722A JP2589520B2 (en) 1987-12-30 1987-12-30 Method for manufacturing resin-encapsulated semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62335722A JP2589520B2 (en) 1987-12-30 1987-12-30 Method for manufacturing resin-encapsulated semiconductor device

Publications (2)

Publication Number Publication Date
JPH01179351A true JPH01179351A (en) 1989-07-17
JP2589520B2 JP2589520B2 (en) 1997-03-12

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Country Link
JP (1) JP2589520B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH056953A (en) * 1990-11-19 1993-01-14 Oki Electric Ind Co Ltd Resin sealing type semiconductor device
US5635756A (en) * 1990-04-06 1997-06-03 Hitachi, Ltd. Semiconductor device, lead frame therefor and memory card to provide a thin structure
JP2006108409A (en) * 2004-10-06 2006-04-20 Fujitsu Ltd Semiconductor device and manufacturing method therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59181025A (en) * 1983-03-31 1984-10-15 Toshiba Corp Semiconductor device
JPS62269325A (en) * 1986-05-16 1987-11-21 Mitsubishi Electric Corp Semiconductor device
JPS63240055A (en) * 1987-03-27 1988-10-05 Nec Corp Semiconductor device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59181025A (en) * 1983-03-31 1984-10-15 Toshiba Corp Semiconductor device
JPS62269325A (en) * 1986-05-16 1987-11-21 Mitsubishi Electric Corp Semiconductor device
JPS63240055A (en) * 1987-03-27 1988-10-05 Nec Corp Semiconductor device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5635756A (en) * 1990-04-06 1997-06-03 Hitachi, Ltd. Semiconductor device, lead frame therefor and memory card to provide a thin structure
JPH056953A (en) * 1990-11-19 1993-01-14 Oki Electric Ind Co Ltd Resin sealing type semiconductor device
JP2006108409A (en) * 2004-10-06 2006-04-20 Fujitsu Ltd Semiconductor device and manufacturing method therefor

Also Published As

Publication number Publication date
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