JP6952629B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP6952629B2 JP6952629B2 JP2018052031A JP2018052031A JP6952629B2 JP 6952629 B2 JP6952629 B2 JP 6952629B2 JP 2018052031 A JP2018052031 A JP 2018052031A JP 2018052031 A JP2018052031 A JP 2018052031A JP 6952629 B2 JP6952629 B2 JP 6952629B2
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Description
第1の実施形態の半導体装置は、第1の絶縁層と、第1の絶縁層の中に設けられた第1の導電層と、第1の絶縁層の中に設けられた第1の金属層と、第1の金属層と第1の導電層との間に設けられ、第1の金属層の線膨張係数よりも線膨張係数の大きい第2の金属層と、を有する第1の基板と、第2の絶縁層と、第2の絶縁層の中に設けられ、第1の金属層に接する第3の金属層と、を有し第1の基板と接する第2の基板と、を備える。
第2の実施形態の半導体装置は、第1の金属層と第2の金属層との間にバリアメタルを有する点、及び、第2の金属層と第1の導電層との間にバリアメタルを有する点で、第1の実施形態と異なっている。以下、第1の実施形態と重複する内容については、一部記述を省略する。
第3の実施形態の半導体装置は、第2の金属層が狭窄部をする点で、第1の実施形態と異なっている。以下、第1の実施形態と重複する内容については、一部記述を省略する。
15a 表面電極(第1の金属層)
15b 埋め込み電極(第2の金属層)
15c バリアメタル
16 配線層(第1の導電層)
22 絶縁層(第2の絶縁層)
25a 表面電極(第3の金属層)
25b 埋め込み電極(第4の金属層)
26 配線層(第2の導電層)
100 半導体装置
101 第1の基板
102 第2の基板
Claims (8)
- 第1の絶縁層と、
前記第1の絶縁層の中に設けられた第1の導電層と、
前記第1の絶縁層の中に設けられた第1の金属層と、
前記第1の金属層と前記第1の導電層との間に設けられ、前記第1の金属層の線膨張係数よりも線膨張係数の大きい第2の金属層と、を有する第1の基板と、
第2の絶縁層と、
前記第2の絶縁層の中に設けられ、前記第1の金属層に接する第3の金属層と、を有し前記第1の基板と接する第2の基板と、
を備え、
前記第2の金属層と前記第1の金属層とが積層される方向を第1の方向、前記第1の方向に対し垂直な方向を第2の方向、前記第1の方向及び前記第2の方向に垂直な方向を第3の方向とした場合に、
前記第1の金属層の前記第2の方向の幅が前記第2の金属層の前記第2の方向の幅と等しく、前記第1の金属層の前記第3の方向の幅が前記第2の金属層の前記第3の方向の幅と等しい半導体装置。 - 前記第1の金属層と前記第3の金属層とは同一の材料である請求項1記載の半導体装置。
- 前記第1の金属層は銅を主成分とする金属であり、前記第2の金属層はアルミニウムを主成分とする金属である請求項1又は請求項2記載の半導体装置。
- 前記第2の金属層の前記第1の方向の厚さは、前記第1の金属層の前記第1の方向の厚さと前記第2の金属層の前記第1の方向の厚さの和の30%以上である請求項1ないし請求項3いずれか一項記載の半導体装置。
- 前記第2の金属層の前記第2の方向の幅が前記第1の導電層の前記第2の方向の幅よりも狭い請求項1ないし請求項4いずれか一項記載の半導体装置。
- 前記第1の金属層と前記第2の金属層との間にバリアメタルを有する請求項1ないし請求項5いずれか一項記載の半導体装置。
- 前記第2の絶縁層の中に設けられた第2の導電層と、
前記第3の金属層と前記第2の導電層との間に設けられ、前記第3の金属層の線膨張係数よりも線膨張係数の大きい第4の金属層と、を有する請求項1ないし請求項6いずれか一項記載の半導体装置。 - 前記第1の絶縁層と前記第2の絶縁層とが接する請求項1ないし請求項7いずれか一項記載の半導体装置。
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| US10790262B2 (en) * | 2018-04-11 | 2020-09-29 | Invensas Bonding Technologies, Inc. | Low temperature bonded structures |
| US11244916B2 (en) | 2018-04-11 | 2022-02-08 | Invensas Bonding Technologies, Inc. | Low temperature bonded structures |
| US11244920B2 (en) | 2018-12-18 | 2022-02-08 | Invensas Bonding Technologies, Inc. | Method and structures for low temperature device bonding |
| CN113348555B (zh) * | 2019-03-18 | 2023-08-18 | 铠侠股份有限公司 | 半导体装置及其制造方法 |
| US12057402B2 (en) * | 2020-09-18 | 2024-08-06 | Intel Corporation | Direct bonding in microelectronic assemblies |
| CN114628304A (zh) * | 2020-12-10 | 2022-06-14 | 武汉新芯集成电路制造有限公司 | 芯片键合方法 |
| WO2022147459A1 (en) | 2020-12-30 | 2022-07-07 | Invensas Bonding Technologies, Inc. | Structure with conductive feature and method of forming same |
| JP7621894B2 (ja) * | 2021-06-16 | 2025-01-27 | キオクシア株式会社 | 半導体装置およびその製造方法 |
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| US20040262772A1 (en) * | 2003-06-30 | 2004-12-30 | Shriram Ramanathan | Methods for bonding wafers using a metal interlayer |
| US7402509B2 (en) * | 2005-03-16 | 2008-07-22 | Intel Corporation | Method of forming self-passivating interconnects and resulting devices |
| FR2913145B1 (fr) | 2007-02-22 | 2009-05-15 | Stmicroelectronics Crolles Sas | Assemblage de deux parties de circuit electronique integre |
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| US9142517B2 (en) * | 2012-06-05 | 2015-09-22 | Taiwan Semiconductor Manufacturing Company, Ltd. | Hybrid bonding mechanisms for semiconductor wafers |
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| US9953941B2 (en) * | 2015-08-25 | 2018-04-24 | Invensas Bonding Technologies, Inc. | Conductive barrier direct hybrid bonding |
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