JP5543567B2 - 半導体素子の製造方法 - Google Patents
半導体素子の製造方法 Download PDFInfo
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- JP5543567B2 JP5543567B2 JP2012232941A JP2012232941A JP5543567B2 JP 5543567 B2 JP5543567 B2 JP 5543567B2 JP 2012232941 A JP2012232941 A JP 2012232941A JP 2012232941 A JP2012232941 A JP 2012232941A JP 5543567 B2 JP5543567 B2 JP 5543567B2
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Description
VDD 電源電圧
GND Ground(接地電位)
PAD 外部入出力端子(パッド)
D1、D2 pn接合ダイオード
R 電気抵抗
D データ信号
C 制御信号
Si シリコン
CMP Chemical Mechanical Polishingの略称
Au 金
W タングステン
Ti チタン
Cu 銅
Sn 錫
Ag 銀
Ni ニッケル
Claims (10)
- 半導体ウエーハ上の隣接する素子間において、入力保護回路を有しない入力端子は電源端子及び接地端子と互いに電気的に接続可能な導電性材料により導通状態におかれ、常に同電位に保たれた構造を維持して前記半導体ウエーハを被積層半導体ウエーハ上に積層後、前記入力端子、前記電源端子及び前記接地端子が独立した端子となるように前記導通状態を非導通化する工程を有することを特徴とする積層素子の製造方法。
- 前記導電性材料が半導体素子の配線層材料であって、前記非導通化する工程がウエーハダイシング工程であることを特徴とする請求項1に記載の積層素子の製造方法。
- 半導体ウエーハ上の隣接する半導体素子間において、各端子を接続する前記配線層材料が素子間を縫うように一筆書きした構造を有していることを特徴とする請求項2に記載の積層素子の製造方法。
- 半導体ウエーハ上の隣接する半導体素子間において、各端子を接続する前記配線層材料を複数の異なる配線層により形成したことを特徴とする請求項2に記載の積層素子の製造方法。
- 前記積層工程前の個別の半導体素子上の前記導電性材料をマイクロバンプ下層の連続したシード層により形成し、前記シード層を残した状態において前記個別の半導体素子を他の半導体素子上に積層した後、前記シード層のマイクロバンプ下層部以外の不要部を除去することを特徴とする請求項1に記載の積層素子の製造方法。
- 最上層の半導体素子においては、前記導電性材料を多層配線材料により形成したシャント配線とし、前記最上層の半導体素子を他の半導体素子上に積層した後にウエーハダイシング工程により前記シャント配線を非導通化することを特徴とする請求項5に記載の積層素子の製造方法。
- 最下層の半導体素子においては、前記導電性材料を多層配線材料により形成したシャント配線とし、前記最下層の半導体素子上に他の半導体素子を積層する工程が完了した後にウエーハダイシング工程により前記シャント配線を非導通化することを特徴とする請求項5又は請求項6に記載の積層素子の製造方法。
- 前記最下層の半導体素子が外部インターフェース素子であることを特徴とする請求項7に記載の積層素子の製造方法。
- 前記最上層の半導体素子が固体撮像素子であることを特徴とする請求項6乃至請求項8のいずれか一項に記載の積層素子の製造方法。
- 前記固体撮像素子が裏面照射型の固体撮像素子であることを特徴とする請求項9に記載の積層素子の製造方法。
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