JP5780165B2 - 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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- JP5780165B2 JP5780165B2 JP2012013482A JP2012013482A JP5780165B2 JP 5780165 B2 JP5780165 B2 JP 5780165B2 JP 2012013482 A JP2012013482 A JP 2012013482A JP 2012013482 A JP2012013482 A JP 2012013482A JP 5780165 B2 JP5780165 B2 JP 5780165B2
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- semiconductor chip
- connection pad
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Description
図1は、第1の実施形態による三次元半導体集積回路装置10の一例を示す断面図である。
11 パッケージ基板
11A パッケージ基板上主面
11B パッケージ基板下主面
11C 配線パタ―ン
11D ハンダバンプ
11a,11b 配線パッド
11c ビルドアップ層
12,13,14,210,220 半導体チップ
12A,13A,14A 多層配線構造
12AL 多層配線構造下部
12AM 多層配線構造中部
12AU 多層配線構造上部
12AT 多層配線構造最上部
12B,13B,210B,220B 貫通ビアプラグ
12BA,13BA,1211P Al接続パッド
12BM,12BMM,12BMN,13BMM,13BMN バリアメタル
12Bp Cu接続パッド
12CKT 回路形成面
12CS,12CSs,12CSt Cuシード層
12L,13L ライナ絶縁膜
12SNA パッシベーション膜
12SNO パッシベーション膜開口部
12R,13R,14R 封止樹脂
12Tr,13Tr 半導体素子
12V 凹部
12a,12b,13a,13b,(13a)1,(13a)2,14a,14b,(14a)1 Cu接続パッド
12e,13e 貫通ビアプラグ突出部
121〜1211 層間絶縁膜
121P〜1210P Cu接続パッド
121W〜1211W 配線パタ―ン
121i〜1211i 絶縁性バリア膜
12Ox シリコン酸化膜
100 支持基板
101 仮接着剤層
120 シリコンウェハ
120B Cuビアプラグ
Claims (12)
- 第1の面と前記第1の面に対向する第2の面とを有し第1の半導体素子と各々前記第1の面から前記第2の面まで延在する複数の貫通ビアプラグとが形成された第1の半導体チップと、
前記第1の半導体チップ上に積層され、第3の面と前記第3の面に対向する第4の面とを有し第2の半導体素子と各々前記第3の面から前記第4の面まで延在する貫通ビアプラグが形成された第2の半導体チップと、
を含み、
前記第1の半導体チップは、前記第1の面上に第1の接続パッドを有し、また前記第2の面上に第2の接続パッドを有し、
前記第1の半導体チップでは、前記第1の面において少なくとも二本の相隣接する貫通ビアプラグが前記第1の接続パッドに共通に接続され、また前記第2の面において、前記少なくとも二本の相隣接する貫通ビアプラグが前記第2の接続パッドに共通に接続され、
前記第2の半導体チップは、前記第3の面上に第3の接続パッドを有し、また前記第4の面上に第4の接続パッドを有し、
前記第2の半導体チップでは、前記第3の面において少なくとも一本の貫通ビアプラグが前記第3の接続パッドに接続され、また前記第4の面において前記少なくとも一本の貫通ビアプラグが前記第4の接続パッドに接続され、
前記第2の半導体チップは前記第3の面が前記第1の半導体チップ上に、前記第2の面に対面するように積層され、
前記第2の接続パッドと前記第3の接続パッドとは相互に接合され、
前記第1の接続パッドは、前記第1の半導体チップ中において、前記第1の面内に定義される第1の方向に隣接した一対の貫通ビアプラグを接続される第1の方位の接続パッドと、前記第1の面内に定義され前記第1の方向に対して交差する第2の方向に隣接した一対の貫通ビアプラグを接続される第2の方位を有する接続パッドとをそれぞれ含むことを特徴とする半導体装置。 - 前記第2の接続パッドと前記第3の接続パッドは同一の大きさおよび形状を有することを特徴とする請求項1記載の半導体装置。
- 前記第1および第2の接続パッドは、前記第1の面に垂直方向から見た場合に相互に隣接する複数本の貫通ビアプラグが接続されることを特徴とする請求項1または2記載の半導体装置。
- 前記第2の半導体チップ中における貫通ビアプラグは、前記第1の半導体チップ中の貫通ビアプラグと一対一に対応して、同一の径および同一のピッチで形成されており、前記第2の半導体チップでは、前記第3の面上において少なくとも二本の貫通ビアプラグが前記第3の接続パッドに共通に接続され、また前記第4の面上において、前記少なくとも二本の貫通ビアプラグが前記第4の接続パッドに共通に接続されることを特徴とする請求項1〜3のうち、いずれか一項記載の半導体装置。
- 前記第1および第2の半導体チップ中において前記貫通ビアプラグは径の二倍のピッチで繰り返し形成されていることを特徴とする請求項4記載の半導体装置。
- 前記第2の半導体チップ中における貫通ビアプラグは、前記第1の半導体チップ中の貫通ビアプラグとは異なるピッチで形成されていることを特徴とする請求項1または2記載の半導体装置。
- 前記第2の半導体チップ中における貫通ビアプラグは、前記第1の半導体チップ中の貫通ビアプラグとは異なる径で形成されていることを特徴とする請求項6記載の半導体装置。
- 前記第1〜第4の接続パッドは、同一の金属よりなることを特徴とする請求項1〜7のうち、いずれか一項記載の半導体装置。
- 前記第1〜第4の接続パッドは、CuまたはAuよりなることを特徴とする請求項8記載の半導体装置。
- さらにパッケージ基板を含み、前記第1の半導体チップは前記パッケージ基板上に、前記第1の面が前記パッケージ基板に対面する向きで実装されており、前記第1の接続パッドは前記パッケージ基板上の接続パッドに直接に接合されていることを特徴とする請求項1〜9のうち、いずれか一項記載の半導体装置。
- 第1の面と前記第1の面に対向する第2の面とを有し、第1の半導体素子と各々前記第1の面から前記第2の面まで延在する複数の貫通ビアプラグとが形成され、前記第1の面に少なくとも二本の相隣接した貫通ビアプラグが接続される第1の接続パッドを有し、前記第2の面に、前記少なくとも二本の相隣接した貫通ビアプラグが接続される第2の接続パッドを有する第1の半導体チップ上に、
第3の面と前記第3の面に対向する第4の面とを有し、第2の半導体素子と各々前記第3の面から前記第4の面まで延在する複数の貫通ビアプラグとが形成され、前記第3の面に少なくとも二本の相隣接した貫通ビアプラグが接続される第3の接続パッドを有し、前記第4の面に、前記少なくとも二本の相隣接した貫通ビアプラグが接続される第4の接続パッドを有する第2の半導体チップを、前記第3の接続パッドが前記第2の接続パッド上に当接するように載置する工程と、
前記第2の接続パッドと前記第3の接続パッドとを拡散接合する工程と、を含み、
前記第1の接続パッドは、前記第1の半導体チップ中において、前記第1の面内に定義される第1の方向に隣接した一対の貫通ビアプラグを接続される第1の方位の接続パッドと、前記第1の面内に定義され前記第1の方向に対して交差する第2の方向に隣接した一対の貫通ビアプラグを接続される第2の方位を有する接続パッドとをそれぞれ含むことを特徴とする半導体装置の製造方法。 - さらに前記第1の接続パッドをパッケージ基板上の配線パッドに拡散接合する工程を含むことを特徴とする請求項11記載の半導体装置の製造方法。
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- 2012-01-25 JP JP2012013482A patent/JP5780165B2/ja not_active Expired - Fee Related
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