JP5672668B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- JP5672668B2 JP5672668B2 JP2009158303A JP2009158303A JP5672668B2 JP 5672668 B2 JP5672668 B2 JP 5672668B2 JP 2009158303 A JP2009158303 A JP 2009158303A JP 2009158303 A JP2009158303 A JP 2009158303A JP 5672668 B2 JP5672668 B2 JP 5672668B2
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- Prior art keywords
- metal film
- film
- insulating protective
- polyimide
- protective film
- Prior art date
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- 239000004065 semiconductor Substances 0.000 title claims description 26
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 239000002184 metal Substances 0.000 claims description 83
- 229920001721 polyimide Polymers 0.000 claims description 49
- 230000001681 protective effect Effects 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 35
- 238000009832 plasma treatment Methods 0.000 claims description 28
- 239000004642 Polyimide Substances 0.000 claims description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 25
- 239000001301 oxygen Substances 0.000 claims description 25
- 229910052760 oxygen Inorganic materials 0.000 claims description 25
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 22
- 239000001257 hydrogen Substances 0.000 claims description 18
- 229910052739 hydrogen Inorganic materials 0.000 claims description 18
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 12
- 238000005530 etching Methods 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 238000007747 plating Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 description 19
- 230000007547 defect Effects 0.000 description 6
- 238000004380 ashing Methods 0.000 description 4
- 238000000635 electron micrograph Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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Description
2 下層金属膜
3 残渣
4 上層金属膜
5 シリコン基板
Claims (4)
- ウェハ表面の下層金属膜上に絶縁性保護膜を形成する工程と、
前記絶縁性保護膜上にマスクを形成し、該マスクを用いて前記絶縁性保護膜を選択的に除去して前記下層金属膜の一部を露出させる工程と、
前記マスクを薬液を用いたウェット処理により除去する工程と、
前記ウェット処理後に前記下層金属膜の露出面に存在する不要物を、酸素と窒素の混合ガスを用いた酸素系プラズマ処理により除去する工程と、
前記酸素系プラズマ処理の影響を、水素と窒素の混合ガスを用いた水素系プラズマ処理により取り除く工程と、
前記水素系プラズマ処理後に前記下層金属膜の露出面上にメッキにより上層金属膜を積層する工程と、
を含み、
25℃以上35℃以下のウェハ温度で前記酸素系プラズマ処理を行い、
前記酸素系プラズマ処理により0.1μm/分以上0.3μm/分以下のエッチングレートで前記絶縁性保護膜のエッチングを行うことを特徴とする半導体装置の製造方法。 - 前記上層金属膜は、前記下層金属膜に、前記絶縁性保護膜に設けられた貫通部を介して接触するとともに、前記下層金属膜上に形成された前記絶縁性保護膜上にも形成されることを特徴とする請求項1に記載の半導体装置の製造方法。
- 前記上層金属膜として複数種類の金属膜、または前記下層金属膜と同種の金属膜を積層することを特徴とする請求項1または2に記載の半導体装置の製造方法。
- 前記絶縁性保護膜はポリイミドであり、前記酸素系プラズマ処理により前記ポリイミドよりなる絶縁性保護膜を0.1μm以上の厚さで除去することを特徴とする請求項1〜3のいずれか一つに記載の半導体装置の製造方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2009158303A JP5672668B2 (ja) | 2009-07-02 | 2009-07-02 | 半導体装置の製造方法 |
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JP2009158303A JP5672668B2 (ja) | 2009-07-02 | 2009-07-02 | 半導体装置の製造方法 |
Publications (2)
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JP2011014749A JP2011014749A (ja) | 2011-01-20 |
JP5672668B2 true JP5672668B2 (ja) | 2015-02-18 |
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JP2009158303A Active JP5672668B2 (ja) | 2009-07-02 | 2009-07-02 | 半導体装置の製造方法 |
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Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4130706B2 (ja) * | 1998-02-23 | 2008-08-06 | ソニー株式会社 | バンプ製造方法および半導体装置の製造方法 |
JP2002252258A (ja) * | 1999-12-27 | 2002-09-06 | Hoya Corp | コンタクト部品及び多層配線基板の製造方法、並びにウエハ一括コンタクトボード |
JP2004273771A (ja) * | 2003-03-10 | 2004-09-30 | Fuji Electric Device Technology Co Ltd | 半導体装置の製造方法 |
JP2006270031A (ja) * | 2005-02-25 | 2006-10-05 | Casio Comput Co Ltd | 半導体装置およびその製造方法 |
JP2009060020A (ja) * | 2007-09-03 | 2009-03-19 | Sony Corp | 半導体装置の製造方法 |
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