JP2009064835A - ベアチップの実装構造 - Google Patents
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/4912—Layout
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- H01L2224/7825—Means for applying energy, e.g. heating means
- H01L2224/783—Means for applying energy, e.g. heating means by means of pressure
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Abstract
【解決手段】半導体からなるベアチップ14,15が、シリコーン系接着剤50を介して、樹脂ケース23上に搭載され、ベアチップ14,15の表面に露出するパッドPに、ワイヤボンディングが施されてなるベアチップの実装構造J1であって、樹脂ケース23上に、ワイヤボンディングにおいてベアチップ14,15の揺れを抑制する、揺れ制限機構Lが設けられてなるベアチップの実装構造J1とする。
【選択図】図1
Description
14,15 ベアチップ
P,Pc,Pe パッド
23〜26,23a,23b,24a 樹脂ケース
L,La〜Ld リブ
MT1〜MT4 シリコーン系接着剤の溜め込み溝
HP1,HP2 パッドの直下の平面
MS1,MS2 ベアチップの収容溝
KS1,KS2 ベアチップの収容壁
50,50s シリコーン系接着剤
51 接着剤
W ボンディングワイヤ
Claims (17)
- 半導体からなるベアチップが、シリコーン系接着剤を介して、樹脂ケース上に搭載され、
前記ベアチップの表面に露出するパッドに、ワイヤボンディングが施されてなるベアチップの実装構造であって、
前記樹脂ケース上に、前記ワイヤボンディングにおいて前記ベアチップの揺れを抑制する、揺れ制限機構が設けられてなることを特徴とするベアチップの実装構造。 - 前記揺れ制限機構が、
前記樹脂ケース上における前記ベアチップの搭載位置において、前記パッドの直下に掛かるようにして、平面から突き出て形成されたリブからなることを特徴とする請求項1に記載のベアチップの実装構造。 - 前記リブの上面と前記ベアチップの下面の間に存在する前記シリコーン系接着剤の厚さが、0.02mm以下であることを特徴とする請求項2に記載のベアチップの実装構造。
- 前記リブが、
一つの前記パッドの直下に、複数本掛かるように配置されてなることを特徴とする請求項2または3に記載のベアチップの実装構造。 - 前記リブが、
前記平面の溝加工によるカエリからなることを特徴とする請求項2乃至4のいずれか一項に記載のベアチップの実装構造。 - 前記パッドが、前記ベアチップに複数個配置されてなり、
前記リブが、前記複数個のパッドうち、少なくとも前記ベアチップの中心に対する前記ワイヤボンディング時の加振力のモーメントが最大となるパッドの直下に掛かるように配置されてなることを特徴とする請求項2乃至5のいずれか一項に記載のベアチップの実装構造。 - 前記樹脂ケース上における前記ベアチップの搭載位置において、前記パッドの直下を除いて、平面から窪んで形成された前記シリコーン系接着剤の溜め込み溝が配置されてなり、
前記揺れ制限機構が、前記パッドの直下における前記平面からなることを特徴とする請求項1に記載のベアチップの実装構造。 - 前記パッドの直下における前記平面と前記ベアチップの下面の間に存在する前記シリコーン系接着剤の厚さが、0.02mm以下であることを特徴とする請求項7に記載のベアチップの実装構造。
- 前記パッドが、前記ベアチップに複数個配置されてなり、
前記溜め込み溝が、前記複数個のパッドうち、少なくとも前記ベアチップの中心に対する前記ワイヤボンディング時の加振力のモーメントが最大となるパッドの直下を除いて配置されてなることを特徴とする請求項7または8に記載のベアチップの実装構造。 - 前記樹脂ケース上における前記ベアチップの搭載位置において、所定のクリアランスを介して該ベアチップが収容されるように、平面から窪んで形成された該ベアチップの収容溝が配置されてなり、
前記揺れ制限機構が、前記収容溝の側壁と前記クリアランス中に存在する前記シリコーン系接着剤からなることを特徴とする請求項1に記載のベアチップの実装構造。 - 前記クリアランスが、0.1mm以下であることを特徴とする請求項10に記載のベアチップの実装構造。
- 前記収容溝の深さが、前記ベアチップの厚さの1/3以下であることを特徴とする請求項10または11に記載のベアチップの実装構造。
- 前記樹脂ケース上における前記ベアチップの搭載位置において、所定のクリアランスを介して該ベアチップが収容されるように、平面から突き出て形成された該ベアチップの収容壁が配置されてなり、
前記揺れ制限機構が、前記収容壁の壁面と前記クリアランス中に存在する前記シリコーン系接着剤からなることを特徴とする請求項1に記載のベアチップの実装構造。 - 前記クリアランスが、0.1mm以下であることを特徴とする請求項13に記載のベアチップの実装構造。
- 前記収容壁の高さが、前記ベアチップの厚さの1/3以下であることを特徴とする請求項13または14に記載のベアチップの実装構造。
- 前記ベアチップが、磁気検出素子が形成されてなるベアチップであり、
前記樹脂ケースが、ケース本体における舌状保持部であり、
前記ベアチップの実装構造が、
回転体の回転に伴うバイアス磁界の変化を、前記ベアチップにより測定し、前記回転体の回転状態を検出する回転検出装置において、
前記ベアチップの前記舌状保持部への搭載に用いられることを特徴とする請求項1乃至15のいずれか一項に記載のベアチップの実装構造。 - 前記回転検出装置が、車載用であることを特徴とする請求項16に記載のベアチップの実装構造。
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02125628A (ja) * | 1988-11-04 | 1990-05-14 | Fujitsu Ltd | 半導体装置の製造方法 |
JPH04123441A (ja) * | 1990-09-14 | 1992-04-23 | Hitachi Ltd | 半導体集積回路装置 |
JPH09264800A (ja) * | 1996-03-27 | 1997-10-07 | Omron Corp | 半導体式力学量センサ |
JP2004158798A (ja) * | 2002-11-08 | 2004-06-03 | Tomoegawa Paper Co Ltd | 半導体装置用接着テープ |
JP2005033496A (ja) * | 2003-07-11 | 2005-02-03 | Seiko Epson Corp | 圧電デバイス |
JP2007101230A (ja) * | 2005-09-30 | 2007-04-19 | Denso Corp | 回転検出装置 |
JP2007154099A (ja) * | 2005-12-07 | 2007-06-21 | Momentive Performance Materials Japan Kk | シリコーンゴム接着剤組成物及びそれを用いた半導体装置 |
JP2008192660A (ja) * | 2007-02-01 | 2008-08-21 | Matsushita Electric Ind Co Ltd | 半導体装置およびその製造方法 |
-
2007
- 2007-09-04 JP JP2007229375A patent/JP5470690B2/ja not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02125628A (ja) * | 1988-11-04 | 1990-05-14 | Fujitsu Ltd | 半導体装置の製造方法 |
JPH04123441A (ja) * | 1990-09-14 | 1992-04-23 | Hitachi Ltd | 半導体集積回路装置 |
JPH09264800A (ja) * | 1996-03-27 | 1997-10-07 | Omron Corp | 半導体式力学量センサ |
JP2004158798A (ja) * | 2002-11-08 | 2004-06-03 | Tomoegawa Paper Co Ltd | 半導体装置用接着テープ |
JP2005033496A (ja) * | 2003-07-11 | 2005-02-03 | Seiko Epson Corp | 圧電デバイス |
JP2007101230A (ja) * | 2005-09-30 | 2007-04-19 | Denso Corp | 回転検出装置 |
JP2007154099A (ja) * | 2005-12-07 | 2007-06-21 | Momentive Performance Materials Japan Kk | シリコーンゴム接着剤組成物及びそれを用いた半導体装置 |
JP2008192660A (ja) * | 2007-02-01 | 2008-08-21 | Matsushita Electric Ind Co Ltd | 半導体装置およびその製造方法 |
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