JPH104170A - Lead frame - Google Patents

Lead frame

Info

Publication number
JPH104170A
JPH104170A JP8175627A JP17562796A JPH104170A JP H104170 A JPH104170 A JP H104170A JP 8175627 A JP8175627 A JP 8175627A JP 17562796 A JP17562796 A JP 17562796A JP H104170 A JPH104170 A JP H104170A
Authority
JP
Japan
Prior art keywords
lead frame
resin
semiconductor device
view
groove
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
JP8175627A
Other languages
Japanese (ja)
Inventor
Satoshi Imai
聡 今井
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP8175627A priority Critical patent/JPH104170A/en
Publication of JPH104170A publication Critical patent/JPH104170A/en
Pending 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
    • H01L2224/26Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
    • H01L2224/31Structure, shape, material or disposition of the layer connectors after the connecting process
    • H01L2224/32Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
    • H01L2224/321Disposition
    • H01L2224/32151Disposition the layer connector 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
    • H01L2224/32221Disposition the layer connector 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
    • H01L2224/32245Disposition the layer connector 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 metallic
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/15Details of package parts other than the semiconductor or other solid state devices to be connected
    • H01L2924/181Encapsulation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/30Technical effects
    • H01L2924/35Mechanical effects
    • H01L2924/351Thermal stress
    • H01L2924/3511Warping

Landscapes

  • Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
  • Lead Frames For Integrated Circuits (AREA)

Abstract

PROBLEM TO BE SOLVED: To make the adhesive force of a lead frame to a sealing resin enhance and to make the thermal stress strength of the lead frame enhance, by a method wherein a plurality of pieces of discontinuous grooves are provided in the chip mounting part of the lead frame. SOLUTION: In a lead frame 1, a plurality of pieces of discontinuous grooves 5 are formed in the surface, which is closely adhered to a sealing resin 8, of the lead frame 1. When a thermal stress is applied to the surface of the lead framed 1, slides are generated on the surface, which is closely adhered to the resin 8, of the lead frame 1 by a difference between the thermal expansion coefficients of the lead frame 1 and the resin 8. At this time, stratches are generated in the slides parallel to a chip mounting part 4 by the discontinuous grooves 5 and the slides on the surface adhered closely to the resin 8 are inhibited. Accordingly, the adhesive properties of the lead frame 1 to the resin 8 can be enhanced and peeling of the resin 8 from the lead frame 1 due to the thermal stress can be hardly generated. As a result, the yield of the manufacture of a device and the reliability of the device can be made to enhance.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、半導体装置用リー
ドフレームに関し、特に、溝(凹部)を有するリードフ
レームに関する。
The present invention relates to a lead frame for a semiconductor device, and more particularly to a lead frame having a groove (recess).

【0002】[0002]

【従来の技術】従来のリードフレーム及びその従来のリ
ードフレームを用いて構成した樹脂封止型半導体装置の
要部構造を以下に説明する。図6及び図7は、特開平4
−242966号公報に提案される樹脂封止型半導体装
置の構成を示したものであり、図8は、特開昭60−1
61647号公報に提案される半導体装置用リードフレ
ームの構成を示したものである。
2. Description of the Related Art The structure of a main part of a conventional lead frame and a resin-sealed semiconductor device formed using the conventional lead frame will be described below. FIG. 6 and FIG.
FIG. 8 shows a configuration of a resin-sealed semiconductor device proposed in Japanese Patent Application Laid-Open No. 242966/1990.
1 shows a configuration of a lead frame for a semiconductor device proposed in Japanese Patent No. 61647.

【0003】図6を参照して、上記特開平4−2429
66号公報記載の樹脂封止型半導体装置においては、リ
ードフレームのダイパッド1に対し半導体チップ7のマ
ウント部の面域を除いて樹脂パッケージ8の封止樹脂と
接し合う領域に多数の小径な貫通穴9を分散して穿孔さ
れている。なお、図6(A)は平面図、図6(B)は図
6(A)の側断面図を示す。このようにして作られる樹
脂封止型半導体装置においては、樹脂パッケージ8の成
形工程で、モールド金型に注入した溶融樹脂がダイパッ
ド2に穿孔した貫通孔6にも充填され、その投錨効果に
よりダイパッド1の表、裏両側の封止樹脂との結合力が
高まり、ダイパッドの反り、封止樹脂との間の剥離、ダ
イパッドの反りに起因するチップのクラックの発生が抑
えられるものと記載されている。
[0003] Referring to FIG.
In the resin-encapsulated semiconductor device described in JP-A-66-66, a large number of small-diameter penetrating holes are formed in a region in contact with the encapsulating resin of the resin package 8 except for the surface area of the mounting portion of the semiconductor chip 7 with respect to the die pad 1 of the lead frame. Holes 9 are dispersed and perforated. 6A is a plan view, and FIG. 6B is a side sectional view of FIG. 6A. In the resin-encapsulated semiconductor device manufactured in this manner, in the molding process of the resin package 8, the molten resin injected into the mold is filled also in the through-hole 6 formed in the die pad 2, and the die pad is formed by the anchoring effect. It is described that the bonding force with the sealing resin on both the front and back sides of No. 1 is increased, and the occurrence of chip cracks due to the warpage of the die pad, the separation from the sealing resin, and the warpage of the die pad is suppressed. .

【0004】また、図7を参照して、上記特開平4−2
42966号公報には、リードフレーム1のチップマウ
ント部分4とねじ止め用穴10の間に、板面を横切るよ
うなスリット状の凹溝3を形成し、リードフレーム1の
周域を樹脂封止し、封止樹脂に対する投錨効果を発揮す
るようにした絶縁型半導体装置の構成が提案されてい
る。図7(A)は平面図、図7(B)は図7(A)の側
断面図を示す。
[0004] Further, referring to FIG.
In Japanese Patent No. 42966, a slit-shaped groove 3 is formed between the chip mount portion 4 of the lead frame 1 and the screw hole 10 so as to cross the plate surface, and the peripheral area of the lead frame 1 is sealed with resin. In addition, there has been proposed a configuration of an insulating semiconductor device that exerts an anchoring effect on a sealing resin. 7A is a plan view, and FIG. 7B is a side sectional view of FIG. 7A.

【0005】また、図8を参照すると、上記特開昭60
−161647号公報には、リードフレーム1の放熱板
部2との境界線に沿ったチップマウント部4の表面に互
いに平行な溝3a、3bを形成し、チップマウント部4
の周域を樹脂封止した非絶縁型半導体装置が提案されて
いる。なお、図8(A)は平面図、図8(B)は図8
(A)の側断面図を示す。
[0005] Referring to FIG. 8, FIG.
Japanese Patent Application Laid-Open No. 161647 discloses that grooves 3a and 3b parallel to each other are formed on a surface of a chip mount portion 4 along a boundary line between a lead frame 1 and a heat radiating plate portion 2.
A non-insulated semiconductor device in which the peripheral region is sealed with a resin has been proposed. 8A is a plan view, and FIG.
(A) is a side sectional view.

【0006】[0006]

【発明が解決しようとする課題】しかしながら、上記し
た従来技術は、下記記載の問題点を有している。
However, the above-mentioned prior art has the following problems.

【0007】その第1の問題点は、熱ストレス(温度サ
イクル、断熱動作寿命試験)を印加することで、樹脂8
とリードフレーム1の密着面が剥がれる、ということで
ある。これは、前記した従来の技術に共通の問題点とさ
れている。
The first problem is that the application of heat stress (temperature cycle, adiabatic operation life test) causes the resin 8
And the contact surface of the lead frame 1 is peeled off. This is a common problem with the above-described conventional technology.

【0008】この理由は、樹脂8とリードフレーム1の
熱膨張率の差により、熱ストレスを印加することで、図
3に示すように、樹脂8とリードフレーム1の密着面
で、スライドが生じる、ことによる。
The reason is that a thermal stress is applied due to the difference in the coefficient of thermal expansion between the resin 8 and the lead frame 1, thereby causing a slide on the contact surface between the resin 8 and the lead frame 1 as shown in FIG. Depending on.

【0009】第2の問題点は、非絶縁型半導体装置にお
いて、図8に示す従来の連続溝を有するリードフレーム
では、熱ストレスを印加することで、チップマウント部
4と樹脂8の密着面が放熱板部側2より剥がれる。
A second problem is that, in a non-insulating type semiconductor device, in the conventional lead frame having a continuous groove shown in FIG. It is peeled off from the radiator plate side 2.

【0010】この理由は、非絶縁型半導体装置では、図
3(A)に示すように、樹脂8とリードフレーム1の密
着面でスライドが起こる。チップマウント部4の放熱板
部側2は樹脂8との密着面積が少いため、スライドが起
こり易いからである。
The reason is that, in the non-insulated semiconductor device, as shown in FIG. 3A, sliding occurs on the contact surface between the resin 8 and the lead frame 1. This is because the heat-dissipating plate side 2 of the chip mount 4 has a small contact area with the resin 8 and thus slides easily.

【0011】さらに、第3の問題点は、非絶縁型半導体
装置においては、図6に示した従来の貫通穴を有するリ
ードフレームは使用できない。
A third problem is that a conventional lead frame having a through hole shown in FIG. 6 cannot be used in a non-insulated semiconductor device.

【0012】この理由は、非絶縁型半導体装置の場合、
リードフレーム1の一面は樹脂封止されず露出させ、面
実装等に使用するため、リードフレームに貫通穴が有る
と実装性が劣化することによる。
The reason is that in the case of a non-insulated semiconductor device,
One surface of the lead frame 1 is exposed without being resin-sealed and is used for surface mounting or the like. Therefore, if the lead frame has a through hole, the mountability is deteriorated.

【0013】そして、第4の問題点は、図7に示す絶縁
型半導体装置において、リードフレーム1と樹脂8の密
着面のスライドが溝3に平行な場合には、所望する効果
が得られないということである。
A fourth problem is that, in the insulating semiconductor device shown in FIG. 7, if the slide of the contact surface between the lead frame 1 and the resin 8 is parallel to the groove 3, the desired effect cannot be obtained. That's what it means.

【0014】この理由は、上記スライドが溝3に平行な
場合、密着面のスライドに対して溝3による引っかかり
が生じないためである。
The reason is that when the slide is parallel to the groove 3, the slide on the contact surface is not caught by the groove 3.

【0015】従って、本発明は、上記事情に鑑みてなさ
れたものであって、その目的は、封止樹脂とリードフレ
ームの密着力を向上させ、熱ストレス耐量を向上させる
リードフレームを提供することにある。
SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lead frame capable of improving the adhesion between a sealing resin and a lead frame and improving the thermal stress resistance. It is in.

【0016】[0016]

【課題を解決するための手段】前記目的を達成するた
め、本発明のリードフレームは、リードフレームのチッ
プマウント部に不連続の溝を複数個設ける構成を特徴と
する。
In order to achieve the above object, a lead frame according to the present invention is characterized in that a plurality of discontinuous grooves are provided in a chip mount portion of the lead frame.

【0017】また、放熱板側に多数の不連続の溝を設け
る構成を特徴とする。
Further, a feature is provided in which a large number of discontinuous grooves are provided on the heat sink side.

【0018】本発明によれば、不連続の溝を放熱板側に
多数設けることにより、樹脂とリードフレームとの密着
面でのスライドに引っかかりが生じ、スライドが起こり
にくくなる。すなわち、不連続にすることで、前後左右
(リードフレームに平行)方向への引っかかりが生じ、
チップマウント部の溝を多くすることで引っかかり箇所
が増えて更に密着面積が増し、スライドが起こりにくく
なる。
According to the present invention, by providing a large number of discontinuous grooves on the heat radiating plate side, the slide on the contact surface between the resin and the lead frame is caught, and the slide hardly occurs. In other words, the discontinuity causes hooking in the front, rear, left, and right directions (parallel to the lead frame),
Increasing the number of grooves in the chip mount portion increases the number of places to be caught, further increasing the contact area, and making the slide less likely to occur.

【0019】また、チップマウント部の放熱板部側は樹
脂との密着面積が少いため、スライドが大きくなるが、
不連続溝を放熱板側に多数設けることでスライドに対す
る引っかかりが強くなり、チップマウント部の放熱板部
側の樹脂スライドが起こりにくくなる。
Also, since the area of the chip mounting portion on the heat radiating plate side which is in close contact with the resin is small, the slide becomes large.
By providing a large number of discontinuous grooves on the heat radiating plate side, catching on the slide is increased, and resin sliding on the heat radiating plate side of the chip mount portion is less likely to occur.

【0020】[0020]

【発明の実施の形態】次に、本発明の実施の形態につい
て図面を参照して詳細に説明する。
Next, embodiments of the present invention will be described in detail with reference to the drawings.

【0021】図1は、本発明の第1の実施の形態の構成
を示す図であり、図1(A)は平面図、図1(B)は図
1(A)の側断面図、図2(A)は図1(A)のI−
I′線断面図、図2(B)は図1(A)のII−II′線断
面図をそれぞれ示している。図1及び図2において、1
はリードフレーム、2は放熱板部、3は溝、4はチップ
マウント部、5は不連続溝、6はリードフレーム1と半
導体チップ7を接着する半田、8はチップマウント部周
域を封止した樹脂パッケージである。
FIG. 1 is a view showing the structure of a first embodiment of the present invention. FIG. 1 (A) is a plan view, FIG. 1 (B) is a side sectional view of FIG. 2 (A) is I- in FIG. 1 (A).
FIG. 2B is a sectional view taken along the line II ′ of FIG. 1A. 1 and 2, 1
Is a lead frame, 2 is a radiator plate, 3 is a groove, 4 is a chip mount, 5 is a discontinuous groove, 6 is a solder for bonding the lead frame 1 and the semiconductor chip 7, and 8 is a seal around the chip mount. It is a resin package.

【0022】放熱板部2には、ねじ止め用穴10が穿孔
されており、この穴10を利用して半導体装置をヒート
シンクなどにねじ締結する。
A hole 10 for screwing is formed in the radiator plate 2, and the semiconductor device is screwed to a heat sink or the like using the hole 10.

【0023】ここで、チップマウント部4と放熱板部2
を形成するリードフレーム1は、熱伝導性の高い、金属
板をプレス加工して作られたものである。また、樹脂パ
ッケージ8は例えばトランスファモールド法で形成され
る。
Here, the chip mount part 4 and the heat sink part 2
Is formed by pressing a metal plate having high thermal conductivity. The resin package 8 is formed by, for example, a transfer molding method.

【0024】次に、本発明の実施の形態の動作につい
て、図1、及び図3を参照して詳細に説明する。
Next, the operation of the embodiment of the present invention will be described in detail with reference to FIG. 1 and FIG.

【0025】図1に示す半導体装置に、熱ストレス(温
度サイクリング試験断続動作寿命試験)を印加すると、
リードフレーム1と樹脂8の熱膨張率の差により、図3
に示すように、リードフレーム1と樹脂8に曲げ応力が
加わり、リードフレーム1と樹脂8との密着面にスライ
ドが生じる。
When a thermal stress (temperature cycling test intermittent operation life test) is applied to the semiconductor device shown in FIG.
Due to the difference in the coefficient of thermal expansion between the lead frame 1 and the resin 8, FIG.
As shown in (1), bending stress is applied to the lead frame 1 and the resin 8, and a slide occurs on the contact surface between the lead frame 1 and the resin 8.

【0026】この時、不連続溝5により、図3の矢印方
向(チップマウント部4に平行)のスライドに対して引
っかかりが生じ、密着面のスライドが抑えられる。
At this time, the discontinuous groove 5 causes the slide in the direction of the arrow in FIG. 3 (parallel to the chip mount portion 4) to be caught, thereby suppressing the slide of the contact surface.

【0027】[0027]

【実施例】上記した本発明の実施の形態をより詳細に説
明すべく、以下に本発明の実施例を説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to explain the above-mentioned embodiment of the present invention in more detail, embodiments of the present invention will be described below.

【0028】図1及び図2を参照すると、本発明の実施
例においては、リードフレーム1は熱伝導性の高い銅、
アルミニウムなどの金属板をプレス加工して作られる。
また、溝3及び不連続溝5は打刻溝及びエッチング溝に
より形成される。各溝の寸法はチップマウント部4の各
周域と樹脂8との密着面積により適切な寸法で形成され
る。
Referring to FIGS. 1 and 2, in an embodiment of the present invention, a lead frame 1 is made of copper having high thermal conductivity.
It is made by pressing a metal plate such as aluminum.
The groove 3 and the discontinuous groove 5 are formed by an embossed groove and an etched groove. The dimensions of each groove are appropriately determined according to the contact area between each peripheral area of the chip mount part 4 and the resin 8.

【0029】不連続溝5の形状は、図2(D)に示すよ
うに、好ましくは四角形状で形成される。
As shown in FIG. 2D, the shape of the discontinuous groove 5 is preferably formed in a square shape.

【0030】次に、本発明の実施例の動作について図1
〜図3を参照して説明する。
Next, the operation of the embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG.

【0031】図1に示す半導体装置に、熱ストレス(温
度サイクリング試験:150℃〜−55℃、断続寿命試
験:チャネル温度差125℃)を印加することで、リー
ドフレーム1と樹脂8の熱膨張率の差により、図3に示
すように、リードフレーム1と樹脂8に曲げ応力が加わ
り、リードフレーム1と樹脂8との密着面にスライドが
生じる。
By applying a thermal stress (temperature cycling test: 150 ° C. to −55 ° C., intermittent life test: channel temperature difference 125 ° C.) to the semiconductor device shown in FIG. Due to the difference in the rates, as shown in FIG. 3, bending stress is applied to the lead frame 1 and the resin 8, and sliding occurs on the contact surface between the lead frame 1 and the resin 8.

【0032】この時、不連続溝5の側面と樹脂との引っ
かかりにより、チップマウント部4に平行な縦横方向の
スライドが抑えられる。
At this time, the side surface of the discontinuous groove 5 is caught by the resin, so that the sliding in the vertical and horizontal directions parallel to the chip mount portion 4 is suppressed.

【0033】次に、本発明の別の実施の形態について図
面を参照して説明する。
Next, another embodiment of the present invention will be described with reference to the drawings.

【0034】図4に示すように、本発明の別の実施の形
態においては、本発明の特徴である不連続溝5を、放熱
板部2側へ多数設けることにより、熱ストレスによる放
熱板部側の剥れを抑えている。
As shown in FIG. 4, in another embodiment of the present invention, a large number of discontinuous grooves 5, which are a feature of the present invention, are provided on the heat radiating plate 2 side, so that the heat radiating plate 5 The peeling of the side is suppressed.

【0035】本発明のさらに別の実施の形態として、図
5に示すように、不連続溝5の底面を荒らす(溝の深さ
を300μm、底面凹凸高さ30μmにする)ことによ
り、リードフレーム1と封止樹脂8との密着面積を増や
し、熱ストレスによる剥れを抑える効果を高めたもので
ある。
As still another embodiment of the present invention, as shown in FIG. 5, the bottom surface of the discontinuous groove 5 is roughened (the depth of the groove is set to 300 μm and the height of the bottom surface unevenness is set to 30 μm). This increases the area of close contact between the sealing resin 1 and the sealing resin 8 to enhance the effect of suppressing peeling due to thermal stress.

【0036】[0036]

【発明の効果】以上説明したように、本発明によれば、
チップマウント部に不連続溝を設けたことにより、熱ス
トレスに対するリードフレームと樹脂との剥れが起こり
にくくし、製造歩留まり及び装置の信頼性を向上させる
という効果を奏する。
As described above, according to the present invention,
Providing the discontinuous groove in the chip mount portion makes it difficult for the lead frame and the resin to be separated from each other due to thermal stress, and has an effect of improving the manufacturing yield and the reliability of the device.

【0037】この理由は、本発明においては、曲げ応力
に対し、チップマウント部に設けた不連続溝によりリー
ドフレームと樹脂との密着性が向上したことによる。
The reason for this is that, in the present invention, the adhesiveness between the lead frame and the resin is improved by the discontinuous groove provided in the chip mount portion against bending stress.

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

【図1】(A)本発明のリードフレームの実施の形態を
示す平面図である。 (B)図1(A)の側面断面図である。
FIG. 1A is a plan view showing an embodiment of a lead frame of the present invention. (B) It is a side sectional view of Drawing 1 (A).

【図2】(C)図1(A)のI−I′の断面図である。 (D)図1(A)のII−II′の断面図である。FIG. 2C is a cross-sectional view taken along a line II ′ of FIG. FIG. 2D is a sectional view taken along line II-II ′ of FIG.

【図3】(A)熱ストレス印加時の側面断面図である。 (B)(A)のIII−III′の断面図である。FIG. 3A is a side cross-sectional view when a thermal stress is applied. (B) It is sectional drawing of III-III 'of (A).

【図4】(A)本発明の別の実施の形態を示す平面図で
ある。 (B)(A)のIV−IV′の断面図である。
FIG. 4A is a plan view showing another embodiment of the present invention. (B) It is sectional drawing of IV-IV 'of (A).

【図5】(A)本発明のさらに別の実施の形態を示す平
面図である。 (B)(A)のV−V′の断面図である。
FIG. 5 (A) is a plan view showing still another embodiment of the present invention. (B) It is sectional drawing of VV 'of (A).

【図6】(A)従来の装置を示す平面図である。 (B)(A)の側面断面図である。FIG. 6A is a plan view showing a conventional device. (B) It is a side sectional view of (A).

【図7】(A)従来の他の装置を示す平面図である。 (B)(A)側面断面図である。FIG. 7A is a plan view showing another conventional device. It is a side sectional view of (B) and (A).

【図8】(A)従来の他の装置を示す平面図である。 (B)(A)側面断面図である。FIG. 8A is a plan view showing another conventional device. It is a side sectional view of (B) and (A).

【符号の説明】[Explanation of symbols]

1 リードフレーム 2 放熱板部 3 溝 4 チップマウント部 5 不連続溝 6 接続用半田 7 半導体チップ 8 封止樹脂成形体 9 貫通穴 10 ねじ止め用穴 DESCRIPTION OF SYMBOLS 1 Lead frame 2 Heat sink 3 Groove 4 Chip mount part 5 Discontinuous groove 6 Connection solder 7 Semiconductor chip 8 Sealing resin molding 9 Through hole 10 Screw hole

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】樹脂封止型半導体装置に用いられるリード
フレームにおいて、 封止樹脂を密着するリードフレーム表面に不連続の溝を
複数個形成してなることを特徴とする半導体装置用リー
ドフレーム。
1. A lead frame for use in a resin-encapsulated semiconductor device, wherein a plurality of discontinuous grooves are formed on the surface of the lead frame to which sealing resin is adhered.
【請求項2】樹脂封止型半導体装置であって、樹脂封止
されない放熱板を有する半導体装置に用いられるリード
フレームにおいて、 封止樹脂を密着するリードフレーム表面の放熱板側に複
数の不連続な溝を形成してなることを特徴とする半導体
装置用リードフレーム。
2. A lead frame used in a semiconductor device having a heat radiating plate which is not resin-sealed, wherein a plurality of discontinuities are provided on a heat radiating plate side of a lead frame surface to which a sealing resin is adhered. A lead frame for a semiconductor device, characterized by forming a simple groove.
【請求項3】樹脂封止型半導体装置に用いられるリード
フレームにおいて、 封止樹脂を密着するリードフレーム表面に形成された不
連続な溝の底面を荒らすようにしたことを特徴とする半
導体装置用リードフレーム。
3. A lead frame for use in a resin-encapsulated semiconductor device, wherein a bottom surface of a discontinuous groove formed on a surface of the lead frame to which sealing resin is adhered is roughened. Lead frame.
【請求項4】封止樹脂を密着する、リードフレームのチ
ップマウント部の表面に、放熱板と反対側から前記放熱
板側の方向に沿って互いに非連通の複数の溝を備えたこ
とを特徴とする半導体装置用リードフレーム。
4. A plurality of grooves which are not communicated with each other along a direction from the side opposite to the heat radiating plate toward the heat radiating plate on a surface of the chip mount portion of the lead frame to which the sealing resin is adhered. Lead frame for a semiconductor device.
JP8175627A 1996-06-14 1996-06-14 Lead frame Pending JPH104170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8175627A JPH104170A (en) 1996-06-14 1996-06-14 Lead frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8175627A JPH104170A (en) 1996-06-14 1996-06-14 Lead frame

Publications (1)

Publication Number Publication Date
JPH104170A true JPH104170A (en) 1998-01-06

Family

ID=15999396

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8175627A Pending JPH104170A (en) 1996-06-14 1996-06-14 Lead frame

Country Status (1)

Country Link
JP (1) JPH104170A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10553525B2 (en) 2014-06-30 2020-02-04 Renesas Electronics Corporation Semiconductor device and manufacturing method of semiconductor device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58119660A (en) * 1982-01-11 1983-07-16 Oki Electric Ind Co Ltd Semiconductor device
JPS62274758A (en) * 1986-05-23 1987-11-28 Hitachi Ltd Electronic device
JPH06252317A (en) * 1993-02-25 1994-09-09 Hitachi Ltd Semiconductor device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58119660A (en) * 1982-01-11 1983-07-16 Oki Electric Ind Co Ltd Semiconductor device
JPS62274758A (en) * 1986-05-23 1987-11-28 Hitachi Ltd Electronic device
JPH06252317A (en) * 1993-02-25 1994-09-09 Hitachi Ltd Semiconductor device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10553525B2 (en) 2014-06-30 2020-02-04 Renesas Electronics Corporation Semiconductor device and manufacturing method of semiconductor device

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