JP2978862B2 - LOC semiconductor device and method of manufacturing the same - Google Patents

LOC semiconductor device and method of manufacturing the same

Info

Publication number
JP2978862B2
JP2978862B2 JP29694697A JP29694697A JP2978862B2 JP 2978862 B2 JP2978862 B2 JP 2978862B2 JP 29694697 A JP29694697 A JP 29694697A JP 29694697 A JP29694697 A JP 29694697A JP 2978862 B2 JP2978862 B2 JP 2978862B2
Authority
JP
Japan
Prior art keywords
insulating member
adhesive
semiconductor device
loc
inner lead
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.)
Expired - Fee Related
Application number
JP29694697A
Other languages
Japanese (ja)
Other versions
JPH11135704A (en
Inventor
伸之 森
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 Kyushu Ltd
Original Assignee
NEC Kyushu 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 NEC Kyushu Ltd filed Critical NEC Kyushu Ltd
Priority to JP29694697A priority Critical patent/JP2978862B2/en
Publication of JPH11135704A publication Critical patent/JPH11135704A/en
Application granted granted Critical
Publication of JP2978862B2 publication Critical patent/JP2978862B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • H01L2224/4805Shape
    • H01L2224/4809Loop shape
    • H01L2224/48091Arched
    • 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
    • H01L2224/4826Connecting between the body and an opposite side of the item with respect to the body
    • 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
    • H01L2224/484Connecting portions
    • H01L2224/48463Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
    • H01L2224/48465Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond the other connecting portion not on the bonding area being a wedge bond, i.e. ball-to-wedge, regular stitch
    • 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
    • H01L2224/73Means 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
    • H01L2224/732Location after the connecting process
    • H01L2224/73201Location after the connecting process on the same surface
    • H01L2224/73215Layer and wire connectors

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Lead Frames For Integrated Circuits (AREA)

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、LOC( Lead On
Chip )型構造を有する半導体装置及びその製造方法に
関する。
The present invention relates to a LOC (Lead On)
And a method of manufacturing the same.

【0002】[0002]

【従来の技術】従来のLOC型構造を有する半導体装置
においては、図2に示すように、リードフレームのイン
ナリード2に予め熱可塑性または熱硬化性接着剤(図で
は熱硬化性接着剤として示してある。)6を塗布し硬化
させてポリイミド等の絶縁テープ4を貼り付けてあり、
絶縁テープの他方の側に熱可塑性または熱硬化性接着剤
(図では熱硬化性接着剤として示してある。)6により
チップ3を配置する。その後、固着するために熱処理を
行い熱可塑性または熱硬化性接着剤6を硬化させてい
た。
2. Description of the Related Art In a conventional semiconductor device having a LOC type structure, as shown in FIG. 2, a thermoplastic or thermosetting adhesive (shown as a thermosetting adhesive in the figure) is previously attached to an inner lead 2 of a lead frame. 6) is applied and cured, and an insulating tape 4 such as polyimide is attached.
The chip 3 is arranged on the other side of the insulating tape with a thermoplastic or thermosetting adhesive (shown as a thermosetting adhesive in the figure) 6. After that, a heat treatment was performed to fix the thermoplastic or thermosetting adhesive 6.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、上記の
LOC型構造を有する半導体装置では、ワイヤボンディ
ング時にEオープン(ボンディングワイヤがインナリー
ドと接続できないこと)が発生する場合があった。その
理由は、チップ配置後硬化のために熱処理がされると、
インナリード側の接着剤が軟化しインナリード加工歪み
が解放される為インナリードが変形するからである。
However, in the semiconductor device having the above-mentioned LOC type structure, E-opening (the bonding wire cannot be connected to the inner lead) may occur at the time of wire bonding. The reason is that when heat treatment is performed for curing after chip placement,
This is because the inner lead is deformed because the adhesive on the inner lead side is softened and the inner lead processing distortion is released.

【0004】発明の目的は、LOC構造リードフレーム
にチップ搭載後熱処理をする半導体装置のボンディング
時のリード側オープン不良を防止することにある。
An object of the present invention is to prevent a lead-side open defect at the time of bonding of a semiconductor device which is subjected to a heat treatment after mounting a chip on a LOC structure lead frame.

【0005】[0005]

【課題を解決するための手段】本発明のLOC型半導体
装置は、半導体チップ上に絶縁部材を介してリードフレ
ームのインナーリードが配置され、該半導体チップと該
絶縁部材、該絶縁部材と該インナーリードがそれぞれ接
着剤により貼り付けられているLOC型半導体装置にお
いて、前記絶縁部材と前記インナーリードとを貼り付け
る接着剤として、熱硬化性あるいは熱可塑性の接着剤を
用い、かつ前記半導体チップと前記絶縁部材とを貼り付
ける接着剤として、紫外線硬化性接着剤を用いたことを
特徴とする。
According to the LOC type semiconductor device of the present invention, inner leads of a lead frame are arranged on a semiconductor chip via an insulating member, and the semiconductor chip, the insulating member, the insulating member and the inner member are provided. In the LOC semiconductor device in which the leads are respectively attached by an adhesive, the insulating member and the inner lead are attached.
Thermosetting or thermoplastic adhesives
Used, and as an adhesive paste and the insulating member and the semiconductor chip, characterized by using a UV curable adhesive.

【0006】また本発明のLOC型半導体装置の製造方
法は、リードフレームのインナリード側に熱硬化性あ
るいは熱可塑性の接着剤を介して絶縁部材を貼り付け、
該絶縁部材と該絶縁部材上の紫外線硬化性接着剤を介し
て半導体チップとを接合し紫外線にて該紫外線硬化性接
着剤を硬化させることを特徴とする。
[0006] Production method of LOC type semiconductor device of the present invention may also thermosetting Oh the inner over leads of the lead frame
Or paste the insulating member via a thermoplastic adhesive,
Via the insulating member and an ultraviolet-curable adhesive on the insulating member
And bonding the semiconductor chip to the semiconductor chip and curing the ultraviolet-curable adhesive with ultraviolet light.

【0007】本発明は、LOC構造リードフレームでチ
ップを固着する側の絶縁テープ等の絶縁部材の面に紫外
線(以下UVという)硬化性接着剤を使用するものであ
り、チップ搭載時に熱処理はせずUV照射により固着を
行なう。
According to the present invention, an ultraviolet ray (hereinafter referred to as UV) curable adhesive is used on the surface of an insulating member such as an insulating tape on the side to which a chip is fixed with a LOC structure lead frame. First, fix by UV irradiation.

【0008】本発明においては、チップ搭載後UV照射
にて半導体チップと絶縁部材とを固着するので、チップ
搭載後熱処理を必要とせず、インナリードと絶縁部材と
を貼り付けている接着剤が軟化しない。よってインテリ
ードが変形することなくボンディング時のEオープンを
防止できる。
In the present invention, since the semiconductor chip and the insulating member are fixed by UV irradiation after mounting the chip, no heat treatment is required after mounting the chip, and the adhesive bonding the inner lead and the insulating member is softened. do not do. Therefore, E-opening during bonding can be prevented without deformation of the interlead.

【0009】インナリードと絶縁部材とを貼り付ける
接着剤としては、従来と同様に熱可塑性または熱硬化性
接着剤を用いる。
[0009] As an adhesive paste inner over leads and the insulating member, as in the prior art using a thermoplastic or thermosetting adhesive.

【0010】[0010]

【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。図1は本発明のLO
C型半導体装置の一実施形態を示す断面図である。図1
に示すように、本発明の好適な実施形態は、LOC用リ
ードフレームのインナーリード2に接合しているポリイ
ミドテープ等の絶縁テープ(絶縁部材)4のインナリー
ド固定側の接着剤は熱硬化性樹脂6を使用し、絶縁テー
プ4の反対側のチップを接着する側の接着剤はUV硬化
性樹脂5を使用する。また、チップ搭載後はUVを照射
し固着する。チップ搭載後接着剤には熱が加わらないた
めインナリードは接着剤に固定され、インナリードが変
形することはない。
Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows the LO of the present invention.
FIG. 3 is a cross-sectional view illustrating one embodiment of a C-type semiconductor device. FIG.
As shown in FIG. 1, the adhesive of the insulating tape (insulating member) 4 such as a polyimide tape bonded to the inner lead 2 of the LOC lead frame is fixed on the inner lead fixing side by a thermosetting resin. The resin 6 is used, and the UV-curable resin 5 is used as the adhesive on the side to which the chip opposite to the insulating tape 4 is bonded. After mounting the chip, it is fixed by irradiating UV. After the chip is mounted, no heat is applied to the adhesive, so that the inner leads are fixed to the adhesive and the inner leads are not deformed.

【0011】次に上記LOC型半導体装置の製造方法に
ついて説明する。
Next, a method of manufacturing the LOC semiconductor device will be described.

【0012】まず、LOC用リードフレームのインナー
リード2に、予め両面に接着剤を塗布したポリイミドテ
ープ4を貼り付けておく、その時リードフレームのイン
ナーリード2側に熱硬化性接着剤6の方を貼り付ける。
First, a polyimide tape 4 coated with an adhesive on both sides in advance is attached to the inner lead 2 of the LOC lead frame. At this time, the thermosetting adhesive 6 is applied to the inner lead 2 side of the lead frame. paste.

【0013】半導体チップ3はポリイミドテープ4のU
V硬化性接着剤5の方と接合させる。その後、UV硬化
性接着剤5をUV照射にてチップとリードフレームを固
定させる。このとき、熱硬化性接着剤の様に熱処理時の
不純物がリード表面に付着すること及びインナリード変
形が発生することがないため、ボンディングは良好にで
きる。
The semiconductor chip 3 is made of U of the polyimide tape 4
It is bonded to the V-curable adhesive 5. Thereafter, the chip and the lead frame are fixed by UV irradiation with the UV-curable adhesive 5. At this time, bonding can be performed well because impurities such as a thermosetting adhesive during heat treatment do not adhere to the lead surface and inner lead deformation does not occur.

【0014】[0014]

【発明の効果】本発明によれば、インナリードが変形せ
ず、ボンディング時のEオープン不良防止が可能とな
る。その理由は、チップと接着する接着剤にUV硬化性
樹脂を使用するために熱処理によるインナリード変形を
防止できるためである。
According to the present invention, the inner lead is not deformed, and the E-open defect at the time of bonding can be prevented. The reason is that the inner lead deformation due to heat treatment can be prevented because a UV-curable resin is used as an adhesive for bonding to the chip.

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

【図1】本発明のLOC型半導体装置の一実施形態を示
す断面図である。
FIG. 1 is a sectional view showing one embodiment of a LOC semiconductor device of the present invention.

【図2】従来のLOC型半導体装置の断面図である。FIG. 2 is a cross-sectional view of a conventional LOC semiconductor device.

【符号の説明】[Explanation of symbols]

1 ボンディングワイヤ 2 インナリード 3 チップ 4 ポリイミド 5 UV硬化性接着剤 6 熱硬化性接着剤 DESCRIPTION OF SYMBOLS 1 Bonding wire 2 Inner lead 3 Chip 4 Polyimide 5 UV curable adhesive 6 Thermosetting adhesive

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 半導体チップ上に絶縁部材を介してリー
ドフレームのインナーリードが配置され、該半導体チッ
プと該絶縁部材、該絶縁部材と該インナーリードがそれ
ぞれ接着剤により貼り付けられているLOC型半導体装
置において、前記絶縁部材と前記インナーリードとを貼り付ける接着
剤として、熱硬化性あるいは熱可塑性の接着剤を用い、
かつ前記 半導体チップと前記絶縁部材とを貼り付ける接
着剤として、紫外線硬化性接着剤を用いたことを特徴と
するLOC型半導体装置。
1. An LOC type wherein an inner lead of a lead frame is disposed on a semiconductor chip via an insulating member, and the semiconductor chip and the insulating member, and the insulating member and the inner lead are respectively adhered by an adhesive. In a semiconductor device, an adhesive for adhering the insulating member and the inner lead
Using a thermosetting or thermoplastic adhesive,
And as an adhesive paste and the insulating member and the semiconductor chip, LOC type semiconductor device characterized by using a UV curable adhesive.
【請求項2】 前記絶縁部材はポリイミドテープであ
ることを特徴とする請求項1に記載のLOC型半導体装
置。
2. The LOC semiconductor device according to claim 1 , wherein said insulating member is a polyimide tape.
【請求項3】 リードフレームのインナリード側に
硬化性あるいは熱可塑性の接着剤を介して絶縁部材を貼
り付け、該絶縁部材と該絶縁部材上の紫外線硬化性接着
剤を介して半導体チップとを接合し紫外線にて該紫外線
硬化性接着剤を硬化させることを特徴とするLOC型半
導体装置の製造方法。
3. A heat inner over leads of the lead frame
An insulating member is attached via a curable or thermoplastic adhesive, and the insulating member and an ultraviolet-curable adhesive on the insulating member
A method for manufacturing a LOC type semiconductor device, comprising bonding a semiconductor chip via an agent and curing the ultraviolet curable adhesive with ultraviolet rays.
【請求項4】 前記絶縁部材はポリイミドテープである
ことを特徴とする請求項3に記載のLOC型半導体装置
の製造方法。
4. The process for producing LOC type semiconductor device according to claim 3, wherein said insulating member is a polyimide tape.
JP29694697A 1997-10-29 1997-10-29 LOC semiconductor device and method of manufacturing the same Expired - Fee Related JP2978862B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29694697A JP2978862B2 (en) 1997-10-29 1997-10-29 LOC semiconductor device and method of manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29694697A JP2978862B2 (en) 1997-10-29 1997-10-29 LOC semiconductor device and method of manufacturing the same

Publications (2)

Publication Number Publication Date
JPH11135704A JPH11135704A (en) 1999-05-21
JP2978862B2 true JP2978862B2 (en) 1999-11-15

Family

ID=17840236

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29694697A Expired - Fee Related JP2978862B2 (en) 1997-10-29 1997-10-29 LOC semiconductor device and method of manufacturing the same

Country Status (1)

Country Link
JP (1) JP2978862B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1094518A1 (en) * 1999-09-30 2001-04-25 Ming-Tung Shen Semiconductor device comprising a lead frame and method for fabricating the same
JP2003037344A (en) * 2001-07-25 2003-02-07 Sanyo Electric Co Ltd Circuit device and its manufacturing method
KR100652517B1 (en) 2004-03-23 2006-12-01 삼성전자주식회사 semiconductor package having leads directly attached to chip, manufacturing method and apparatus thereof

Also Published As

Publication number Publication date
JPH11135704A (en) 1999-05-21

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