JPH03152944A - 電界効果型トランジスタのワイヤボンディング方法 - Google Patents

電界効果型トランジスタのワイヤボンディング方法

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Publication number
JPH03152944A
JPH03152944A JP1291003A JP29100389A JPH03152944A JP H03152944 A JPH03152944 A JP H03152944A JP 1291003 A JP1291003 A JP 1291003A JP 29100389 A JP29100389 A JP 29100389A JP H03152944 A JPH03152944 A JP H03152944A
Authority
JP
Japan
Prior art keywords
bonding
effect transistor
wire bonding
field effect
package
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
JP1291003A
Other languages
English (en)
Other versions
JP2726124B2 (ja
Inventor
Seiichi Takahashi
誠一 高橋
Rumi Komatsu
小松 留美
Shigeru Kuribayashi
栗林 繁
Hiroshi Nagayama
博 長山
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
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Publication date
Application filed by Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP1291003A priority Critical patent/JP2726124B2/ja
Publication of JPH03152944A publication Critical patent/JPH03152944A/ja
Application granted granted Critical
Publication of JP2726124B2 publication Critical patent/JP2726124B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
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    • H01L2224/48463Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、静電耐圧が極めて低い電界効果型トランジス
タのワイヤボンディング方法に関するものである。
(従来の技術) 従来、半導体素子の組立工程におけるワイヤボンディン
グにおいては、第3図に示すように、第1番目のボンデ
ィング4を半導体素子のボンディングパッド3側に、第
2番目のボンディング5をパッケージ(又はリードフレ
ーム)2例の端子に行うことにより、結線するようにし
ていた。
(発明が解決しようとする課題) しかしながら、上記した従来の半導体素子のワイヤボン
ディング方法においては、これを静電耐圧が極めて低い
半導体素子に対して行うと、ワイヤボンディング時に発
生する静電気は、第1番目のボンドが半導体素子のボン
ディングバントに接触した瞬間、ボンディングバンドか
ら半導体素子の動作層に流れ込み、半導体素子の静電破
壊を誘起したり、或いは、破壊にまで及ばないとしても
半導体素子に静電衝撃を加えることにより、半導体素子
の品質が損なわれるという欠点があった。
本発明は、以上述べた静電耐圧が極めて低い半導体素子
のワイヤボンディング時に発生ずる静電破壊を防止し、
信頼性の高い電界効果型トランジスタのワイヤボンディ
ング方法を提供することを目的とする。
(課題を解決するための手段) 本発明は、上記目的を達成するために、電界効果型トラ
ンジスタのワイヤボンディングにおいて、ソースのボン
ディングパッド(11)にワイヤボンディングを行う工
程と、ドレインのボンディングバンド(12)にワイヤ
ボンディングを行う工程と、ゲートのボンディングバン
ド(13)にワイヤボンディングを行う工程とを施すよ
うにしたものである。
また、各ワイヤボンディングに際しては、第1番目のボ
ンディングをパッケージ(又はリードフレーム)側とな
し、第2番目のボンディングを電界効果型トランジスタ
のボンディングパッド側とするようにしたものである。
(作用) 本発明によれば、第1図に示すように、まず、ソースの
ボンディングパノ)”(11)にワイヤボンディングを
行い、その後、ドレインのボンディングパッド(12)
にワイヤボンディングを行い、最後に静電耐圧力月番低
いゲートのボンディングパッド(13)にワイヤボンデ
ィングを行うようにしたので、一部の静電気が電界効果
型トランジスタに印加されたとしても、ゲートの静電破
壊を防止することができる。
また、ワイヤボンディング時に静電気が発生したとして
も、第1番目のボンディングはパッケージ(又はリード
フレーム)側であるため、発生した静電気をパッケージ
(又はリードフレーム)を通して逃がすことができ、電
界効果型トランジスタに静電衝撃を与えることはない。
更に、第2番目のボンドで静電気が発生したとしても、
ボンディングをするワイヤは既に第1番目のボンドでパ
ッケージ(又はリードフレーム)に接続されているため
に、その静電気はボンディングワイヤを通してパッケー
ジ(又はリードフレーム)側に逃げてしまい、電界効果
型トランジスタに静電衝撃を与えることはない。
(実施例) 以下、本発明の実施例について図面を参照しながら詳細
に説明する。
第1図は本発明の実施例を示す電界効果型トランジスタ
のワイヤボンディング工程の説明図である。
まず、第1図(a)に示すように、パッケージ(又はリ
ードフレーム)20側に第1番目のボンディング21a
を行い、次いで、電界効果型トランジスタ10のソース
のボンディングパッド11へのボンディング22aを行
う。
次に、第1図(b)に示すように、パッケージ(又はリ
ードフレーム)20側に第1番目のボンディング21b
を行い、次いで、電界効果型トランジスタ10のドレイ
ンのボンディングパッド12へのボンディング22bを
行う。
最後に、第1図(c)に示すように、パッケージ(又は
リードフレーム)20側に第1番目のボンディング21
cを行い、次いで、静電耐圧が1番低いゲートのボンデ
ィングパッド13へのボンディング22cを行う。
上記したように、各ワイヤボンディングにおいては、パ
ッケージ(又はリードフレーム)20側のボンディング
を先行させ、その後に電界効果型トランジスタ10側の
ボンディングパッドへのボンディングを行う。例えば、
ゲートのボンディングパッド13の場合は、第2図に示
すように、まず、パンケージ(又はリードフレーム)2
0側へのボンディング21cを行った後に電界効果型ト
ランジスタ10側にあるゲートのボンディングパッド1
3へのボンディング22cを行う。
なお、本発明は上記実施例に限定されるものではなく、
本発明の趣旨に基づいて種々の変形が可能であり、これ
らを本発明の範囲から排除するものではない。
(発明の効果) 以上、詳細に説明したように、本発明によれば、電界効
果型トランジスタのソース、トレインの順序で先にワイ
ヤボンディングを行い、最後にゲートのワイヤボンディ
ングを行うようにしたので、一部の静電気が電界効果型
トランジスタに印加されたとしても、ゲートの静電破壊
の確率は非常に低く押さえることができる。
また、ワイヤボンディング時に静電気が発生したとして
も、第1番目のボンドはパッケージ(又はリードフレー
ム)側であるため、発生した静電気をパッケージ(又は
リードフレーム)を通して逃がすことができ、電界効果
型トランジスタに静電衝撃を与えることはない。
更に、ワイヤは既に第1番目のボンドでパンケージ(又
はリードフレーム)に接続されているため、いかなる場
合でも、電界効果型トランジスタよりもボンディングワ
イヤの方が電気抵抗が低くなる。そのため、第2番目の
ボンド時に静電気が発生したとしても、その静電気は、
ボンディングワイヤを通してパッケージ(又はリードフ
レーム)側に逃げてしまい、電界効果型トランジスタに
静電衝撃を与えることはない。
実際、静電破壊電圧がIOVという極めて低い単体HE
 M T (High Electron Mobil
ity Transistor)を、30.000個製
造した結果、静電破壊による不良は発生していない。ま
た、1000時間にわたる高温通電試験バイアス印加に
よる加速耐湿試験等も実施しているが、そのような信輔
性試験でも不良も皆無である。
【図面の簡単な説明】
第1図は本発明の実施例を示す電界効果型トランジスタ
のワイヤボンディング工程の説明図、第2図はその電界
効果型トランジスタのワイヤボンディング状態を示す部
分側面図、第3図は従来の半導体素子のワイヤボンディ
ング状態を示す部分側面図である。 10・・・電界効果型トランジスタ、II・・・ソース
のポンディングバンド、12・・・ドレインのボンディ
ングバンド、13・・・ゲートのポンディングパラ「、
20・・・パッケージ(又はリードフレーム) 、21
a、21b。 21c、22a、22b、22c・・・ボンディング。

Claims (2)

    【特許請求の範囲】
  1. (1)電界効果型トランジスタのワイヤボンディング方
    法において、 (a)ソースのボンディングパッドにワイヤボンディン
    グを行う工程と、 (b)ドレインのボンディングパッドにワイヤボンディ
    ングを行う工程と、 (c)ゲートのボンディングパッドにワイヤボンディン
    グを行う工程とを有することを特徴とする電界効果型ト
    ランジスタのワイヤボンディング方法。
  2. (2)請求項1記載の電界効果型トランジスタのワイヤ
    ボンディング方法において、第1番目のボンディングを
    パッケージ又はリードフレーム側となし、第2番目のボ
    ンディングを電界効果型トランジスタのボンディングパ
    ッド側とすることを特徴とする電界効果型トランジスタ
    のワイヤボンディング方法。
JP1291003A 1989-11-10 1989-11-10 電界効果型トランジスタのワイヤボンディング方法 Expired - Lifetime JP2726124B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1291003A JP2726124B2 (ja) 1989-11-10 1989-11-10 電界効果型トランジスタのワイヤボンディング方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1291003A JP2726124B2 (ja) 1989-11-10 1989-11-10 電界効果型トランジスタのワイヤボンディング方法

Publications (2)

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JPH03152944A true JPH03152944A (ja) 1991-06-28
JP2726124B2 JP2726124B2 (ja) 1998-03-11

Family

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Country Status (1)

Country Link
JP (1) JP2726124B2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005340677A (ja) * 2004-05-31 2005-12-08 Matsushita Electric Ind Co Ltd ワイヤボンダの押さえパーツおよび支持パーツ

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62192641U (ja) * 1986-05-29 1987-12-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62192641U (ja) * 1986-05-29 1987-12-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005340677A (ja) * 2004-05-31 2005-12-08 Matsushita Electric Ind Co Ltd ワイヤボンダの押さえパーツおよび支持パーツ

Also Published As

Publication number Publication date
JP2726124B2 (ja) 1998-03-11

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