JP2006324553A - 半導体装置及びその製造方法 - Google Patents
半導体装置及びその製造方法 Download PDFInfo
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- JP2006324553A JP2006324553A JP2005147674A JP2005147674A JP2006324553A JP 2006324553 A JP2006324553 A JP 2006324553A JP 2005147674 A JP2005147674 A JP 2005147674A JP 2005147674 A JP2005147674 A JP 2005147674A JP 2006324553 A JP2006324553 A JP 2006324553A
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- wire
- capillary
- gold wire
- bump electrode
- semiconductor device
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Abstract
【解決手段】 パッドを有するチップと、パッド上に形成されたバンプ電極と、バンプ電極上にステッチボンドされたワイヤとを備え、ワイヤは、(弾性率/単位面積当たりの破断強度)≧400の条件を満たす。また、チップ、バンプ電極及びワイヤを封止する封止樹脂を更に備え、封止樹脂は、スパイラルフローが110cm以上で、かつ粘度が10Pa・S未満であることが好ましい。
【選択図】 図4
Description
図1(a)は本発明の実施の形態1に係る半導体装置の一例を示す断面図であり、図1(b)はその上面図である。ダイパッド21上にチップ22とチップ23が並べて搭載されている。このチップ22,23とリード24は金ワイヤ13により接続されている。また、チップ23のアルミパッド11上にはバンプ電極14が形成されている。そして、金ワイヤ13が、チップ22のアルミパッドにボールボンディングされ、バンプ電極14上にステッチボンディングされている。さらに、全体が封止樹脂25により封止されている。
(弾性率(kgf/mm2)/単位面積当たりの破断強度(kgf/mm2))≧400
これにより、ワイヤの弾性率を維持しつつ、低い加重でワイヤを切ることができるため、ワイヤの変形に伴うワイヤ同士の電気的ショートや、バンプ電極の引き剥がしを防ぎ、高集積化された半導体装置を安定して製造することができる。特に、破断時のワイヤの伸び率が、例えば少なくとも6%以上、より好ましくは10%以上と高い物において、金ワイヤB、C、Dのように高弾性率、低破断強度という特性を得るのが容易になる。
図8(a)〜(d)は、本発明の実施の形態2に係る半導体装置の製造方法を示す断面図である。まず、図8(a)に示すように、キャピラリ12から排出した金ワイヤ13の先端の金ボールをチップ23のアルミパッド11上に接合させてバンプ電極14を形成する。ただし、金ワイヤ13として実施の形態1と同様の材質のものを用いる。
図9(a)〜(d)は、本発明の実施の形態3に係る半導体装置の製造方法を示す断面図である。まず、図9(a)に示すように、キャピラリ12を用いて、チップ22のアルミパッドに金ワイヤ13先端の金ボールをボールボンディングした後、チップ23のアルミパッド11上に形成されたバンプ電極14上に金ワイヤ13をステッチボンディングする。具体的には、キャピラリ12により金ワイヤ13をバンプ電極14に10ms間押圧し、超音波振動をかけて金ワイヤ13を潰してバンプ電極14に接合する。ただし、金ワイヤ13として実施の形態1と同様の材質のものを用いる。
12 キャピラリ
13 金ワイヤ
14 バンプ電極
23,44,45,52 チップ
25,47,54 封止樹脂
Claims (4)
- パッドを有するチップと、
前記パッド上に形成されたバンプ電極と、
前記バンプ電極上にステッチボンドされたワイヤとを備え、
前記ワイヤは、(弾性率/単位面積当たりの破断強度)≧400の条件を満たすことを特徴とする半導体装置。 - 前記チップ、前記バンプ電極及び前記ワイヤを封止する封止樹脂を更に備え、
前記封止樹脂は、スパイラルフローが110cm以上で、かつ粘度が10Pa・S未満であることを特徴とする請求項1に記載の半導体装置。 - キャピラリに通したワイヤによりパッド上にバンプ電極を形成する工程と、
前記バンプ電極を形成する工程の後に、少なくとも前記ワイヤと前記キャピラリの内壁との隙間以上の振幅で前記キャピラリを横方向に動作させる工程と、
前記キャピラリを横方向に動作させる工程の後に、クランパで前記ワイヤを挟んで上方向に引っ張ることで前記ワイヤをカットする工程とを備え、
前記ワイヤとして、(弾性率/単位面積当たりの破断強度)≧400の条件を満たすものを用いることを特徴とする半導体装置の製造方法。 - キャピラリを用いてバンプ電極上にワイヤをステッチボンディングする工程と、
前記ステッチボンディングする工程の後に、少なくとも前記ワイヤと前記キャピラリの内壁との隙間以上の振幅で前記キャピラリを横方向に動作させる工程と、
前記キャピラリを横方向に動作させる工程の後に、クランパで前記ワイヤを挟んで上方向に引っ張ることで前記ワイヤをカットする工程とを備え、
前記ワイヤとして、(弾性率/単位面積当たりの破断強度)≧400の条件を満たすものを用いることを特徴とする半導体装置の製造方法。
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JP2005147674A JP2006324553A (ja) | 2005-05-20 | 2005-05-20 | 半導体装置及びその製造方法 |
US11/376,090 US7456091B2 (en) | 2005-05-20 | 2006-03-16 | Semiconductor device and method of manufacturing the same |
CN200610073629A CN100580912C (zh) | 2005-05-20 | 2006-04-13 | 半导体装置及其制造方法 |
US12/204,394 US7659635B2 (en) | 2005-05-20 | 2008-09-04 | Semiconductor device and method of manufacturing the same |
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JP2014120702A (ja) * | 2012-12-19 | 2014-06-30 | Azbil Corp | ワイヤボンディング方法 |
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Also Published As
Publication number | Publication date |
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CN100580912C (zh) | 2010-01-13 |
US20090001572A1 (en) | 2009-01-01 |
CN1866505A (zh) | 2006-11-22 |
US7659635B2 (en) | 2010-02-09 |
US20060261495A1 (en) | 2006-11-23 |
US7456091B2 (en) | 2008-11-25 |
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