JP2010199548A - 半導体装置およびその製造方法 - Google Patents
半導体装置およびその製造方法 Download PDFInfo
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- JP2010199548A JP2010199548A JP2009270146A JP2009270146A JP2010199548A JP 2010199548 A JP2010199548 A JP 2010199548A JP 2009270146 A JP2009270146 A JP 2009270146A JP 2009270146 A JP2009270146 A JP 2009270146A JP 2010199548 A JP2010199548 A JP 2010199548A
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Abstract
【解決手段】中央領域に複数のボンディングパッド28を有する第1半導体チップ20上に第2半導体チップ30が接着層40を介して積層されている。第1半導体チップ20のボンディングパッド28に夫々接続された複数のワイヤが半導体チップ20,30の間を通過し第1半導体チップ20の周辺エッジ55を越えて外側に導出している。複数のワイヤの中の少なくとも一部のワイヤ80は、それらが第1半導体チップ20のボンディングパッド28と周辺エッジ55との中間点51を少なくとも含む領域において第1半導体チップ20と第2半導体チップ30との間隔の略中央に位置する。それらのワイヤを保持する保持体50が第1半導体チップ20上に接着層40とは異なる材料でもって設けられている。
【選択図】図1
Description
11 バンプ電極
12 電極
20、30 二つの半導体チップ
21、31 ダイ接着フィルム(DAF)
24、26 配線
25、27 ビア
28 ボンディングパッド(電極)
40 フィルム・オーバー・ワイヤ(FOW)
50、60 保持体
51 中間点
55 周辺エッジ
70 レジンモールド
80、90 ワイヤ
85 金片
100 半導体装置
101 配線基板
102a1 上面
102a2 端部
102b1 下面
102a 第1の半導体チップ
102b 第2の半導体チップ
104 ダイボンド材
105 半田ボール
106a 第1のボンディングワイヤ
106a1 信号系ワイヤ
106a2 電源GND系ワイヤ
106b 第2のボンディングワイヤ
107 ダイアタッチフィルム
108a、108a1、108a2 第1のワイヤ保持体
108b 第2のワイヤ保持体
109 モールドレジン
110a 第1のボンディングパッド
110b 第2のボンディングパッド
111a 第1の接続端子
111b 第2の接続端子
113 ダイアタッチペースト
Claims (14)
- 中央領域に複数のボンディングパッドを有する第1半導体チップ上に第2半導体チップが接着層を介して積層されており、前記第1半導体チップの複数のボンディングパッドに夫々接続された複数のワイヤが前記第1および第2の半導体チップ間を通過しながら前記第1半導体チップの周辺エッジを越えて外側に導出しており、さらに、前記複数のワイヤの中の少なくとも一部のワイヤについては、それらが前記第1半導体チップのボンディングパッドと周辺エッジとの中間点を少なくとも含む領域において前記第1半導体チップと前記第2半導体チップとの間隔の略中央に位置するように、それらを保持する保持体が前記第1半導体チップ上に前記接着層とは異なる材料でもって設けられている半導体装置。
- 一方の面に複数の電極を有する基板と、
前記基板の前記一方の面に裏面が接合され、複数のボンディングパッドをおもて面の中央領域に有する第1の半導体チップと、
前記基板の電極と前記第1の半導体チップのボンディングパッドとを接続する複数のワイヤと、
前記第1の半導体チップの前記おもて面の上に接着層を介して裏面が位置するように配置された第2の半導体チップと、
前記第1の半導体チップのおもて面の、前記ボンディングパッドと前記第1の半導体チップの周辺エッジとの中間点を含む領域に配置され、前記第1の半導体チップと前記第2の半導体チップとの間を通過する前記複数のワイヤの中の少なくとも一部のワイヤを前記第1の半導体チップと前記第2の半導体チップの間隔の中央位置に保持するワイヤ保持体と、
を有する半導体装置。 - 前記ワイヤ保持体によって保持された前記一部のワイヤは、信号系ワイヤとして用いられるものである、請求項1または2に記載の半導体装置。
- 前記第1の半導体チップと前記第2の半導体チップとの間を通過する前記複数のボンディングワイヤのうちの、電源GNDワイヤとして用いられるものは、前記第1の半導体チップのおもて面のごく近傍または前記第2の半導体チップの裏面のごく近傍を這うように配置されている、請求項1から3のいずれか1項に記載の半導体装置。
- 前記第1の半導体チップと前記第2の半導体チップとの間に位置する前記ボンディングワイヤの部位の長さの半分以上が前記ワイヤ保持体により保持されている、請求項1から4のいずれか1項に記載の半導体装置。
- 前記第1の半導体チップと前記第2の半導体チップとの間に位置する前記ボンディングワイヤの部位に関して、前記ワイヤ保持体から前記ボンディングパッドまで延出している前記ボンディングワイヤのワイヤ長、および前記ワイヤ保持体から前記周辺エッジまで延出している前記ボンディングワイヤのワイヤ長は、いずれも前記ワイヤ保持体に保持されている前記ボンディングワイヤのワイヤ長より短い、請求項1から5のいずれか1項に記載の半導体装置。
- 前記第1の半導体チップのおもて面には前記複数のボンディングパッドが直線上に沿って配列されており、前記ワイヤ保持体は前記複数のボンディングパッドの列の長手方向に沿って設けられている、請求項1ないし6のいずれか1項に記載の半導体装置。
- 前記ワイヤ保持体は、前記接着層とは異なる材料の絶縁性樹脂からなる、請求項1ないし7のいずれか1項に記載の半導体装置。
- 前記ワイヤ保持体は、ダイアタッチフィルムである、請求項8に記載の半導体装置。
- 前記第1及び第2の半導体チップはDRAMチップである、請求項1ないし9のいずれか1項に記載の半導体装置。
- 一方の面に電極を有する基板と、複数のボンディングパッドをおもて面の中央領域に有する第1及び第2の半導体チップとを少なくとも用意する工程と、
前記第1の半導体チップの裏面を前記基板の前記一方の面に接合する工程と、
前記第1の半導体チップのおもて面の、前記ボンディングパッドと前記第1の半導体チップの周辺エッジとの中間点を含む領域にワイヤ保持体を設ける工程と、
ワイヤが前記ワイヤ保持体上を通過するように前記基板の電極と前記第1の半導体チップのボンディングパッドとを当該ワイヤで接続する工程と、
前記第2の半導体チップの裏面に接着層を前記ワイヤ保持体の高さと同じ厚さで設ける工程と、
前記第2の半導体チップを前記ワイヤ保持体の上に前記接着層を介して接着する工程と、
を有する半導体装置の製造方法。 - 前記ワイヤの接続工程では、複数の前記ワイヤのうちの信号系ワイヤが前記ワイヤ保持体上を通るように、該信号系ワイヤを前記基板の電極と前記第1の半導体チップのボンディングパッドとに接続する、請求項11に記載の半導体装置の製造方法。
- 複数の前記ワイヤのうちの電源GND系ワイヤを、前記第1の半導体チップのおもて面のごく近傍または前記第2の半導体チップの裏面のごく近傍を這うように配置する、請求項12に記載の半導体装置の製造方法。
- 前記ワイヤ保持体を設ける工程では、前記接着層とは異なる材料の樹脂シートを前記ワイヤ保持体として前記第1の半導体チップのおもて面に貼り付ける、請求項11から13のいずれか1項に記載の半導体装置の製造方法。
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JPS63276250A (ja) * | 1987-05-08 | 1988-11-14 | Mitsubishi Electric Corp | 半導体集積回路装置 |
JP2003303937A (ja) * | 2002-04-05 | 2003-10-24 | Nec Electronics Corp | 半導体装置及びその製造方法 |
JP2006084200A (ja) * | 2004-09-14 | 2006-03-30 | Denso Corp | センサ装置 |
US20070194415A1 (en) * | 2006-02-20 | 2007-08-23 | Seng Eric T S | Semiconductor device assemblies including face-to-face semiconductor dice, systems including such assemblies, and methods for fabricating such assemblies |
JP2008004714A (ja) * | 2006-06-22 | 2008-01-10 | Nec Corp | チップ積層型半導体装置 |
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