JPH0358426A - Tab type semiconductor device - Google Patents

Tab type semiconductor device

Info

Publication number
JPH0358426A
JPH0358426A JP19495089A JP19495089A JPH0358426A JP H0358426 A JPH0358426 A JP H0358426A JP 19495089 A JP19495089 A JP 19495089A JP 19495089 A JP19495089 A JP 19495089A JP H0358426 A JPH0358426 A JP H0358426A
Authority
JP
Japan
Prior art keywords
bump
mounting
rebonding
semiconductor device
board
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
JP19495089A
Other languages
Japanese (ja)
Inventor
Kazutsugu Futatsuka
一継 二塚
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 JP19495089A priority Critical patent/JPH0358426A/en
Publication of JPH0358426A publication Critical patent/JPH0358426A/en
Pending legal-status Critical Current

Links

Landscapes

  • Wire Bonding (AREA)

Abstract

PURPOSE:To enable the defects developed after mounting a device on a board to be analized easily by a method wherein the first bump in specified level and the second bump in substantially different level and electrically connected to the first bump are provided. CONSTITUTION:The title semiconductor device is composed of a TAB tape 1, a semiconductor chip 2, a mounting lead 3, a mounting bump (the first bump) 4 and a rebonding bump 5 higher than the first bump 4. These two bumps 4, 5 are electrically connected to each other by a wiring layer 6. Through these procedures, two kinds of pads in different levels are provided for making rebonding process feasible thereby enabling the defects in the TAB type integrated circuit developed after mounting the device on a board to be analized easily.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はTAB方式半導体装置に関し、特にボンディン
グ用のバンプの楕或に関する.〔従来の技術〕 従来のTAB方式半導体装置は、実質的に高さが同一の
バンブのみを有しているので、基板実装後不良が発生し
た場合、基板がら不良チップをはがすとバンプ上にリー
ドが残っており、再ボンディングが困難である.又リー
ドを取ろうとすると、バンプの変形、破壊を生じて再ボ
ンディングが難しい. 〔発明が解決しようとする課題〕 上述した従来の’I’ A B方式半導体装置は、基板
実装後不良が発生した場合、基板からはがして解析を行
なう場合、半導体チップのバンプ部にリードが残ってお
り、又リードを取ると後にバンプの変形、破損が起り、
再ボンディングして不良解析を行なうことはきわめて困
難である.又上述と同じ理由のため半導体チップのバン
ブの形状、高さが不均一となり、ウエーハテスト時のよ
うにブローブカード、探針を用いてバンブにあたること
も難しい。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a TAB type semiconductor device, and particularly to a bump oval for bonding. [Prior art] Conventional TAB type semiconductor devices have only bumps of substantially the same height, so if a defect occurs after mounting on a board, the leads will be placed on the bumps when the defective chip is peeled off from the board. remains, making rebonding difficult. Also, if you try to remove the lead, the bump may be deformed or destroyed, making re-bonding difficult. [Problems to be Solved by the Invention] In the conventional 'I' A B type semiconductor device described above, when a defect occurs after being mounted on a board, when it is removed from the board and analyzed, leads remain on the bumps of the semiconductor chip. If the lead is removed, the bump may become deformed or damaged later.
It is extremely difficult to perform failure analysis after rebonding. Furthermore, for the same reason as mentioned above, the shape and height of the bumps on the semiconductor chip are non-uniform, and it is difficult to hit the bumps using a probe card or a probe as in the case of wafer testing.

このように、従来のTAB方式半導体装置は、不良解析
に不便な構造を有している. 〔課題を解決するための手段〕 本発明のTAB方式半導体装置は、所定高さの第1のバ
ンブと、前記第1のバンプと電気的に接続され高さの実
質的に異なる第2のバンプとを有するというものである
As described above, the conventional TAB type semiconductor device has a structure that is inconvenient for failure analysis. [Means for Solving the Problems] A TAB type semiconductor device of the present invention includes a first bump having a predetermined height, and a second bump electrically connected to the first bump and having a substantially different height. It is said that it has.

〔実施例〕〔Example〕

次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

第1図(a)は本発明の一実施例を示す平面図、第1図
(b)は第1図(a)のA−A線断面図である. 1はTABテープ、2は半導体チップ、3は実装用リー
ド、4は実装用バンプ(第1のバンプ)、5は再ボンデ
ィング用バンプ(第2のバンブ)で第1のバンプ4より
高さが大きくなっている.6は配線層〈便宜上第1図(
b)にのみ示す)であり、4,5の2つのバンブは電気
的に接続されている. 基板実装後不良が発生し、不良解析のため実装用リード
をはがそうとしてもその一部は半導体チップにひっつい
たまま残ったり、実装用リードを取ってもバンプが変形
してしまうために再ボンディングできない.そのため未
使用の再ボンディング用バンプ5に別のTABテープを
用いて再ボンディング用リードをボンディングすれば、
再びテープ状で不良解析、試験を容易に行なうことがで
きる。再ボンディングする場合、再ボンディング用バン
ブ5は基板実装用バンブ4よりも高いパンフ・であるた
め、基板実装に使われ残っているリードは再ボンディン
グのさまたげになることはない.又、再ボンディング処
理をしなくても、直接再ボンディング用バンブにブロー
ブカードや探針をウェーハテスト時のようにあてて、不
良解析、試験を行なうこともできる. 〔発明の効果〕 以上説明したように本発明は、高さの異なる2種類のパ
ッドを設けることにより、再ボンディングが可能となる
ので、基板実装後に発生したTAB方式集積回路の不良
解析を容易に行なうことができる効果がある.又、再ボ
ンディング用バンプに、直接ブローブカードや探針をあ
てて不良解析を行なうことができる効果もある。
FIG. 1(a) is a plan view showing an embodiment of the present invention, and FIG. 1(b) is a sectional view taken along the line A--A in FIG. 1(a). 1 is a TAB tape, 2 is a semiconductor chip, 3 is a mounting lead, 4 is a mounting bump (first bump), and 5 is a rebonding bump (second bump), which is higher than the first bump 4. It's getting bigger. 6 is a wiring layer (see Fig. 1 for convenience)
b)), and the two bumps 4 and 5 are electrically connected. If a defect occurs after mounting on a board, and you try to remove the mounting lead to analyze the defect, some of it may remain stuck to the semiconductor chip, or even if you remove the mounting lead, the bump will be deformed, so you will have to re-install it. Bonding is not possible. Therefore, if you bond the re-bonding lead to the unused re-bonding bump 5 using another TAB tape,
Again, failure analysis and testing can be easily performed in tape form. When re-bonding is performed, the re-bonding bump 5 has a higher pamphlet than the board mounting bump 4, so the remaining leads used for board mounting will not interfere with re-bonding. Furthermore, even without rebonding, failure analysis and testing can be performed by directly applying a probe card or probe to the rebonding bump as in wafer testing. [Effects of the Invention] As explained above, the present invention enables rebonding by providing two types of pads with different heights, making it easier to analyze defects in TAB integrated circuits that occur after board mounting. There are some effects that can be achieved. Another advantage is that failure analysis can be performed by directly applying a probe card or probe to the bump for rebonding.

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

第1図(a)は本発明の一実施例を示す平面図、第1図
(b)は第1図(a)のA−A&!断面図である. 1・・・TABテープ、2・・・半導体チップ、3・・
・実装用リード、4・・・実装用バンブ、5・・・再ボ
ンデイング用バン1、6・・・配線層.
FIG. 1(a) is a plan view showing an embodiment of the present invention, and FIG. 1(b) is an A-A&! of FIG. 1(a). This is a cross-sectional view. 1...TAB tape, 2...semiconductor chip, 3...
・Lead for mounting, 4... Bump for mounting, 5... Bump for rebonding 1, 6... Wiring layer.

Claims (1)

【特許請求の範囲】[Claims] 所定高さの第1のバンプと、前記第1のバンプと電気的
に接続され高さの実質的に異なる第2のバンプとを有す
ることを特徴とするTAB方式半導体装置。
A TAB semiconductor device comprising: a first bump having a predetermined height; and a second bump electrically connected to the first bump and having a substantially different height.
JP19495089A 1989-07-26 1989-07-26 Tab type semiconductor device Pending JPH0358426A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19495089A JPH0358426A (en) 1989-07-26 1989-07-26 Tab type semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19495089A JPH0358426A (en) 1989-07-26 1989-07-26 Tab type semiconductor device

Publications (1)

Publication Number Publication Date
JPH0358426A true JPH0358426A (en) 1991-03-13

Family

ID=16333024

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19495089A Pending JPH0358426A (en) 1989-07-26 1989-07-26 Tab type semiconductor device

Country Status (1)

Country Link
JP (1) JPH0358426A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0678552U (en) * 1992-01-31 1994-11-04 株式会社サンポウロック Electric lock
JPH08236585A (en) * 1995-02-28 1996-09-13 Nec Corp Semiconductor device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0678552U (en) * 1992-01-31 1994-11-04 株式会社サンポウロック Electric lock
JPH08236585A (en) * 1995-02-28 1996-09-13 Nec Corp Semiconductor device
US5965948A (en) * 1995-02-28 1999-10-12 Nec Corporation Semiconductor device having doubled pads

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