JP5030195B2 - 半導体素子の素子分離膜形成方法 - Google Patents
半導体素子の素子分離膜形成方法 Download PDFInfo
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- JP5030195B2 JP5030195B2 JP2004367280A JP2004367280A JP5030195B2 JP 5030195 B2 JP5030195 B2 JP 5030195B2 JP 2004367280 A JP2004367280 A JP 2004367280A JP 2004367280 A JP2004367280 A JP 2004367280A JP 5030195 B2 JP5030195 B2 JP 5030195B2
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- film
- oxide film
- forming
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- trench
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- 238000000034 method Methods 0.000 title claims description 57
- 239000004065 semiconductor Substances 0.000 title claims description 32
- 238000002955 isolation Methods 0.000 title claims description 24
- 150000004767 nitrides Chemical class 0.000 claims description 26
- 239000000758 substrate Substances 0.000 claims description 17
- 238000005530 etching Methods 0.000 claims description 15
- 238000001039 wet etching Methods 0.000 claims description 13
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000004518 low pressure chemical vapour deposition Methods 0.000 claims description 10
- 238000000231 atomic layer deposition Methods 0.000 claims description 6
- 238000005229 chemical vapour deposition Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 229920000642 polymer Polymers 0.000 description 10
- 239000000243 solution Substances 0.000 description 7
- 239000010410 layer Substances 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/76224—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
- H01L21/02057—Cleaning during device manufacture
- H01L21/0206—Cleaning during device manufacture during, before or after processing of insulating layers
- H01L21/02063—Cleaning during device manufacture during, before or after processing of insulating layers the processing being the formation of vias or contact holes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/308—Chemical or electrical treatment, e.g. electrolytic etching using masks
- H01L21/3081—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their composition, e.g. multilayer masks, materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/31051—Planarisation of the insulating layers
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Element Separation (AREA)
Description
12…パッド酸化膜
13…パッド窒化膜
14…感光膜
15…トレンチ
16…ウォール酸化膜
17…ライナー絶縁膜
18…絶縁膜
Claims (8)
- 半導体基板上にアルミニウム酸化膜でパッド酸化膜を形成した後、該パッド酸化膜の上部にパッド窒化膜を形成する段階と、
前記パッド窒化膜及び前記パッド酸化膜の所定の領域をエッチングした後、前記半導体基板をエッチングしてトレンチを形成する段階と、
NH 4 OH溶液を利用して洗浄工程を行い、前記パッド酸化膜の一部が除去されると同時に前記トレンチの上部及び下部コーナーが丸くなるようにする段階と、
前記トレンチの上部にウォール酸化膜を形成する段階と、
前記トレンチが埋め込まれるように全体構造上に酸化膜を形成する段階と、
前記酸化膜を平坦化させた後、前記酸化膜の一部及び前記パッド窒化膜を除去する段階と、
前記パッド酸化膜をNH 4 OH溶液を利用して除去する段階と、
を含むことを特徴とする半導体素子の素子分離膜形成方法。 - 前記アルミニウム酸化膜は、原子層蒸着(ALD)法または高真空CVD法を用いて形成することを特徴とする請求項1記載の半導体素子の素子分離膜形成方法。
- 前記パッド窒化膜は、SiH2Cl2とNH3を熱分解してLPCVD法を用いて形成することを特徴とする請求項1記載の半導体素子の素子分離膜形成方法。
- 前記トレンチの上部にウォール酸化膜を形成した後、全体構造上にライナー絶縁膜を形成する段階とをさらに含むことを特徴とする請求項1記載の半導体素子の素子分離膜形成方法。
- 前記ライナー絶縁膜は、HTO酸化膜、窒化膜またはこれらを用いた多重膜で形成することを特徴とする請求項4記載の半導体素子の素子分離膜形成方法。
- 前記酸化膜は、HDP法またはLPCVD法を用いて形成することを特徴とする請求項1記載の半導体素子の素子分離膜形成方法。
- 前記酸化膜及び前記パッド窒化膜は、ウェットエッチング工程で除去することを特徴とする請求項1記載の半導体素子の素子分離膜形成方法。
- 前記ウェットエッチング工程は、HF含有溶液またはH3PO4系列の溶液を用いて行うことを特徴とする請求項7記載の半導体素子の素子分離膜形成方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2004-085429 | 2004-10-25 | ||
KR1020040085429A KR100607330B1 (ko) | 2004-10-25 | 2004-10-25 | 반도체 소자의 소자 분리막 형성 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006121021A JP2006121021A (ja) | 2006-05-11 |
JP5030195B2 true JP5030195B2 (ja) | 2012-09-19 |
Family
ID=36129059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004367280A Expired - Fee Related JP5030195B2 (ja) | 2004-10-25 | 2004-12-20 | 半導体素子の素子分離膜形成方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7235458B2 (ja) |
JP (1) | JP5030195B2 (ja) |
KR (1) | KR100607330B1 (ja) |
CN (1) | CN100343973C (ja) |
DE (1) | DE102004060448B4 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100726093B1 (ko) * | 2006-07-28 | 2007-06-08 | 동부일렉트로닉스 주식회사 | 반도체 소자의 제조 방법 |
US7833893B2 (en) * | 2007-07-10 | 2010-11-16 | International Business Machines Corporation | Method for forming conductive structures |
KR100864935B1 (ko) * | 2007-08-28 | 2008-10-23 | 주식회사 동부하이텍 | 반도체 소자의 소자 격리막 형성 방법 |
CN102683180B (zh) * | 2012-06-11 | 2017-10-27 | 上海华虹宏力半导体制造有限公司 | 凹槽刻蚀方法以及半导体器件制造方法 |
CN105225940A (zh) * | 2015-09-22 | 2016-01-06 | 上海华虹宏力半导体制造有限公司 | 沟槽工艺方法 |
FR3051973B1 (fr) | 2016-05-24 | 2018-10-19 | X-Fab France | Procede de formation de transistors pdsoi et fdsoi sur un meme substrat |
CN109411404A (zh) * | 2018-10-31 | 2019-03-01 | 武汉新芯集成电路制造有限公司 | 浅沟槽隔离结构及其制造方法和半导体器件 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5780346A (en) * | 1996-12-31 | 1998-07-14 | Intel Corporation | N2 O nitrided-oxide trench sidewalls and method of making isolation structure |
US5674775A (en) * | 1997-02-20 | 1997-10-07 | Taiwan Semiconductor Manufacturing Company, Ltd. | Isolation trench with a rounded top edge using an etch buffer layer |
US7235856B1 (en) * | 1997-12-18 | 2007-06-26 | Micron Technology, Inc. | Trench isolation for semiconductor devices |
US6153480A (en) * | 1998-05-08 | 2000-11-28 | Intel Coroporation | Advanced trench sidewall oxide for shallow trench technology |
JP2000021970A (ja) * | 1998-07-02 | 2000-01-21 | Mitsubishi Electric Corp | 半導体装置の製造方法 |
US6503330B1 (en) * | 1999-12-22 | 2003-01-07 | Genus, Inc. | Apparatus and method to achieve continuous interface and ultrathin film during atomic layer deposition |
KR100895824B1 (ko) | 2002-07-11 | 2009-05-08 | 매그나칩 반도체 유한회사 | 반도체 소자의 소자분리막 형성방법 |
US6720235B2 (en) * | 2002-09-10 | 2004-04-13 | Silicon Integrated System Corp. | Method of forming shallow trench isolation in a semiconductor substrate |
JP2004281691A (ja) * | 2003-03-14 | 2004-10-07 | Seiko Epson Corp | 半導体装置の製造方法 |
-
2004
- 2004-10-25 KR KR1020040085429A patent/KR100607330B1/ko not_active IP Right Cessation
- 2004-12-13 US US11/010,755 patent/US7235458B2/en not_active Expired - Fee Related
- 2004-12-14 DE DE102004060448A patent/DE102004060448B4/de not_active Expired - Fee Related
- 2004-12-20 JP JP2004367280A patent/JP5030195B2/ja not_active Expired - Fee Related
- 2004-12-30 CN CNB2004100819508A patent/CN100343973C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1767165A (zh) | 2006-05-03 |
CN100343973C (zh) | 2007-10-17 |
KR100607330B1 (ko) | 2006-07-28 |
US20060088977A1 (en) | 2006-04-27 |
KR20060036546A (ko) | 2006-05-02 |
DE102004060448B4 (de) | 2011-02-24 |
DE102004060448A1 (de) | 2006-04-27 |
JP2006121021A (ja) | 2006-05-11 |
US7235458B2 (en) | 2007-06-26 |
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