JP6173413B2 - 固相拡散または相変態を用いた接続層による恒久的なウエハ結合方法 - Google Patents
固相拡散または相変態を用いた接続層による恒久的なウエハ結合方法 Download PDFInfo
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- JP6173413B2 JP6173413B2 JP2015235575A JP2015235575A JP6173413B2 JP 6173413 B2 JP6173413 B2 JP 6173413B2 JP 2015235575 A JP2015235575 A JP 2015235575A JP 2015235575 A JP2015235575 A JP 2015235575A JP 6173413 B2 JP6173413 B2 JP 6173413B2
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- 229910052802 copper Inorganic materials 0.000 description 36
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 35
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- 239000004065 semiconductor Substances 0.000 description 7
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- 229910052737 gold Inorganic materials 0.000 description 6
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- 229910052726 zirconium Inorganic materials 0.000 description 6
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 5
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- 229910004613 CdTe Inorganic materials 0.000 description 1
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- 229910002482 Cu–Ni Inorganic materials 0.000 description 1
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- 229910005542 GaSb Inorganic materials 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000673 Indium arsenide Inorganic materials 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- 229910013641 LiNbO 3 Inorganic materials 0.000 description 1
- ZSBXGIUJOOQZMP-JLNYLFASSA-N Matrine Chemical compound C1CC[C@H]2CN3C(=O)CCC[C@@H]3[C@@H]3[C@H]2N1CCC3 ZSBXGIUJOOQZMP-JLNYLFASSA-N 0.000 description 1
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- 229910004349 Ti-Al Inorganic materials 0.000 description 1
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- 229910011212 Ti—Fe Inorganic materials 0.000 description 1
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- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 1
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- ALKZAGKDWUSJED-UHFFFAOYSA-N dinuclear copper ion Chemical compound [Cu].[Cu] ALKZAGKDWUSJED-UHFFFAOYSA-N 0.000 description 1
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Images
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- Pressure Welding/Diffusion-Bonding (AREA)
Description
- ラインの前後との適合性
これは、電気的に能動的な構成要素を生成する間の、プロセスの適合性として規定される。したがって、構造体ウエハ上に既に存在するトランジスタなどの能動的な構成要素が、プロセス中に悪影響を受けることも損傷することもないように、結合プロセスが設計されなければならない。適合性の基準としては、主に、(主にCMOS構造体内の)複数のある種の化学元素の純度および主に熱応力による機械的な負荷能力が挙げられる。
- 低い汚染
- 力が加わらない、またはできるだけ力が加わらない
- 特に異なる熱膨張係数を有する材料には、できるだけ低い温度
- W-Fe、W-Ge、W-In、W-Li、W-Mg、W-Mn、W-Nb、W-Nd、W-Ni、W-Si、W-Sn、W-Zn、W-Zr、W-Ti、W-Ti、W-Ta、W-Au、W-Al、
- Ti-Fe、Ti-Ge、Ti-In、Ti-Li、Ti-Mg、Ti-Mn、Ti-Nb、Ti-Nd、Ti-Ni、Ti-Si、Ti-Sn、Ti-Zn、Ti-Zr、Ti-Ta、Ti-Au、Ti-Al、
- Ta-Fe、Ta-Ge、Ta-In、Ta-Li、Ta-Mg、Ta-Mn、Ta-Nb、Ta-Nd、Ta-Ni、Ta-Si、Ta-Sn、Ta-Zn、Ta-Zr、Ta-Ti、Ta-W、Ta-Ti、Ta-Ta、Ta-Au、Ta-Al、
- Au-Fe、Au-Ge、Au-In、Au-Li、Au-Mg、Au-Mn、Au-Nb、Au-Nd、Au-Ni、Au-Si、Au-Sn、Au-Zn、Au-Zr、Au-Ti、Au-W、Au-Ti、Au-Ta、Au-Au、Au-Au、Au-Al、
- Al-Fe、Al-Ge、Al-In、Al-Li、Al-Mg、Al-Mn、Al-Nb、Al-Nd、Al-Ni、Al-Si、Al-Sn、Al-Zn、Al-Zr、Al-Ti、Al-W、Al-Ti、Al-Al、Al-Al、Al-Al、
- III-V: GaP、GaAs、InP、InSb、InAs、GaSb、GaN、AlN、InN、AlxGaI-XAs、InXGaI-XN
- IV-IV: SiC、SiGe、
- III-VI: InAlP。
- 非線形光学系: LiNbO3、LiTaO3、KDP (KH2PO4)
- 太陽電池: CdS、CdSe、CdTe、CuInSe2、CuInGaSe2、CuInS2、CuInGaS2
- 導電性酸化物:In2-xSnxO3-y
- PECVD
- LPCVD
- 蒸着
- エピタキシ
- MOCVD
- スパッタリング
2 第2の固体基板
3 第1の表面層
3o 表面
4,4' 第2の表面層
4o,4o' 表面
5,5' 機能層
6 有効接触面
7 中間の空間
8 マイクロ粒子および/またはナノ粒子
9 マイクロ粒子および/またはナノ粒子
10 焼結マトリクス
11 界面
A 第1の材料
B 第2の材料
C 混合材料
R 平均厚さ
D 平均厚さ
Claims (6)
- 第1の固体基板(1)を、第1の材料を含む第2の固体基板(2)に結合するための方法であって、以下のステップ、すなわち、
第2の材料を含み0.1nmと25nmの間の平均厚さを有する機能層(5)を前記第2の固体基板(2)の表面(4o)に形成または塗布するステップと、
前記機能層(5)上で、前記第1の固体基板(1)を前記第2の固体基板(2)と接触させるステップと、
前記第1および第2の固体基板(1、2)間に恒久的な結合を形成するため、前記固体基板(1、2)を互いに押圧し、前記第1の材料の前記第2の材料との固体拡散及び/又は相変態により少なくとも部分的に補強され、
前記固体基板(1、2)間の接触面で固体拡散及び/又は相変態が誘起され、その際、固体拡散及び/又は相変態によって機能層(5)により形成される接触面の変形によって、表面(4o)の不均一さに起因して存在する間隙(10)がふさがれるステップと
を含む方法。 - 前記第2の材料の前記第1の材料内への拡散による前記恒久的な結合の形成および/または補強が生じる、請求項1に記載の方法。
- 前記恒久的な結合の前記形成が、室温と200℃の間の温度で生じる、請求項1または2に記載の方法。
- 前記機能層の塗布/形成の前および/または後に、前記固体基板の前記表面のプラズマ活性化が生じる、請求項1から3のいずれか一項に記載の方法。
- 互いに押圧する前記ステップが、0.1MPaと10MPaの間の圧力で生じる、請求項1から4のいずれか一項に記載の方法。
- 前記恒久的な結合の形成の期間の、前記第2の材料に対する前記第1の材料の溶解度境界が、少なくともわずかにだけ超えられる、請求項1から5のいずれか一項に記載の方法。
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JP3848989B2 (ja) * | 2003-05-15 | 2006-11-22 | 唯知 須賀 | 基板接合方法および基板接合装置 |
JP2005032834A (ja) * | 2003-07-08 | 2005-02-03 | Toshiba Corp | 半導体チップと基板との接合方法 |
JP5401661B2 (ja) * | 2008-08-22 | 2014-01-29 | 株式会社ムサシノエンジニアリング | 原子拡散接合方法及び前記方法により接合された構造体 |
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