KR100950749B1 - 반도체소자의 소자분리막 형성방법 - Google Patents
반도체소자의 소자분리막 형성방법 Download PDFInfo
- Publication number
- KR100950749B1 KR100950749B1 KR1020030046350A KR20030046350A KR100950749B1 KR 100950749 B1 KR100950749 B1 KR 100950749B1 KR 1020030046350 A KR1020030046350 A KR 1020030046350A KR 20030046350 A KR20030046350 A KR 20030046350A KR 100950749 B1 KR100950749 B1 KR 100950749B1
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- South Korea
- Prior art keywords
- pad nitride
- nitride film
- film
- trench
- oxide film
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000004065 semiconductor Substances 0.000 title claims abstract description 34
- 238000002955 isolation Methods 0.000 title claims abstract description 29
- 150000004767 nitrides Chemical class 0.000 claims abstract description 43
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 150000002500 ions Chemical class 0.000 claims abstract description 10
- 238000000151 deposition Methods 0.000 claims abstract description 3
- 238000004140 cleaning Methods 0.000 claims description 8
- 238000005468 ion implantation Methods 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 8
- 238000005530 etching Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H01L21/04—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
- H01L21/3115—Doping the insulating layers
- H01L21/31155—Doping the insulating layers by ion implantation
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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)
Abstract
Description
Claims (4)
- 반도체기판상에 패드산화막과 패드질화막을 순차적으로 적층하는 단계;필드지역으로 정의되어진 영역에 위치하는 상기 패드질화막을 제거하고 이어 상기 패드산화막 및 반도체기판을 순차적으로 제거하여 반도체기판내에 트렌치를 형성하는 단계;상기 반도체기판의 표면으로부터 틸트된 각도로 이온주입을 실시하여 상기 트렌치 상부에 있는 패드질화막측벽에 이온을 주입하는 단계;상기 트렌치상부의 패드질화막측벽의 이온주입된 부분 및 그아래의 패드질화막부분을 제거하여 역방향으로 경사진 측벽을 갖도록하는 단계;상기 트렌치를 포함한 전체 구조의 상면에 HDP산화막을 갭매립시키는 단계;상기 HDP산화막과 패드질화막을 평탄화시키는 단계; 및상기 잔존하는 패드질화막을 제거하여 소자분리막을 형성하는 단계를 포함하여 구성되는 것을 특징으로하는 반도체소자의 소자분리막 형성방법.
- 제1항에 있어서, 상기 틸트된 각도로 이온주입하는 단계는, 1∼89 도의 틸트각도로 이온주입하는 것을 특징으로하는 반도체소자의 소자분리막 형성방법.
- 제1항에 있어서, 상기 이온주입된 부분을 제거하는 단계는 HF계열의 용액을 이용한 세정공정을 통해 이루어지는 것을 특징으로 하는 반도체소자의 소자분리막 형성방법.
- 제1항에 있어서, 상기 패드질화막측벽에 이온주입되는 양은 패드산화막 방향으로 갈수록 농도가 점점 높아지는 것을 특징으로하는 반도체소자의 소자 분리막 형성방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030046350A KR100950749B1 (ko) | 2003-07-09 | 2003-07-09 | 반도체소자의 소자분리막 형성방법 |
US10/744,427 US6921705B2 (en) | 2003-07-09 | 2003-12-22 | Method for forming isolation layer of semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030046350A KR100950749B1 (ko) | 2003-07-09 | 2003-07-09 | 반도체소자의 소자분리막 형성방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050006511A KR20050006511A (ko) | 2005-01-17 |
KR100950749B1 true KR100950749B1 (ko) | 2010-04-05 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020030046350A KR100950749B1 (ko) | 2003-07-09 | 2003-07-09 | 반도체소자의 소자분리막 형성방법 |
Country Status (2)
Country | Link |
---|---|
US (1) | US6921705B2 (ko) |
KR (1) | KR100950749B1 (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7101806B2 (en) * | 2004-10-15 | 2006-09-05 | International Business Machines Corporation | Deep trench formation in semiconductor device fabrication |
KR100724199B1 (ko) * | 2005-12-28 | 2007-05-31 | 동부일렉트로닉스 주식회사 | 에스오아이 소자의 섀로우 트렌치 분리막 형성 방법 |
US7521278B2 (en) * | 2006-10-17 | 2009-04-21 | Eastman Kodak Company | Isolation method for low dark current imager |
US20090026581A1 (en) * | 2007-07-25 | 2009-01-29 | Jin-Ha Park | Flash memory device and method of manufacturing the same |
CN103383962B (zh) * | 2012-05-03 | 2016-06-29 | 中国科学院微电子研究所 | 半导体结构及其制造方法 |
US8815699B2 (en) | 2012-11-07 | 2014-08-26 | Globalfoundries Inc. | Fabrication of reverse shallow trench isolation structures with super-steep retrograde wells |
CN107026192B (zh) * | 2016-02-02 | 2020-05-29 | 中芯国际集成电路制造(上海)有限公司 | 半导体装置的制造方法 |
Citations (2)
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KR20010001206A (ko) * | 1999-06-02 | 2001-01-05 | 황인길 | 반도체 소자 분리를 위한 얕은 트렌치 제조 방법 |
US20020182826A1 (en) * | 2001-05-29 | 2002-12-05 | Shui-Ming Cheng | Fabrication method for a shallow trench isolation structure |
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US4653177A (en) * | 1985-07-25 | 1987-03-31 | At&T Bell Laboratories | Method of making and selectively doping isolation trenches utilized in CMOS devices |
US5448090A (en) * | 1994-08-03 | 1995-09-05 | International Business Machines Corporation | Structure for reducing parasitic leakage in a memory array with merged isolation and node trench construction |
KR0165457B1 (ko) * | 1995-10-25 | 1999-02-01 | 김광호 | 트렌치 소자분리 방법 |
JPH10214888A (ja) * | 1997-01-30 | 1998-08-11 | Nec Yamagata Ltd | 半導体装置の製造方法 |
US5915195A (en) * | 1997-11-25 | 1999-06-22 | Advanced Micro Devices, Inc. | Ion implantation process to improve the gate oxide quality at the edge of a shallow trench isolation structure |
US6002160A (en) * | 1997-12-12 | 1999-12-14 | Advanced Micro Devices, Inc. | Semiconductor isolation process to minimize weak oxide problems |
US6030898A (en) * | 1997-12-19 | 2000-02-29 | Advanced Micro Devices, Inc. | Advanced etching method for VLSI fabrication |
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TW391051B (en) * | 1998-11-06 | 2000-05-21 | United Microelectronics Corp | Method for manufacturing shallow trench isolation structure |
US6284626B1 (en) * | 1999-04-06 | 2001-09-04 | Vantis Corporation | Angled nitrogen ion implantation for minimizing mechanical stress on side walls of an isolation trench |
US6548372B1 (en) * | 1999-08-23 | 2003-04-15 | Micron Technology, Inc. | Forming sidewall oxide layers for trench isolation |
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US6432797B1 (en) * | 2001-01-25 | 2002-08-13 | Chartered Semiconductor Manufacturing Ltd. | Simplified method to reduce or eliminate STI oxide divots |
US6624016B2 (en) * | 2001-02-22 | 2003-09-23 | Silicon-Based Technology Corporation | Method of fabricating trench isolation structures with extended buffer spacers |
US6780730B2 (en) * | 2002-01-31 | 2004-08-24 | Infineon Technologies Ag | Reduction of negative bias temperature instability in narrow width PMOS using F2 implantation |
US6806163B2 (en) * | 2002-07-05 | 2004-10-19 | Taiwan Semiconductor Manufacturing Co., Ltd | Ion implant method for topographic feature corner rounding |
KR20040008519A (ko) * | 2002-07-18 | 2004-01-31 | 주식회사 하이닉스반도체 | 반도체 소자의 소자분리막 형성 방법 |
US6576558B1 (en) * | 2002-10-02 | 2003-06-10 | Taiwan Semiconductor Manufacturing Company | High aspect ratio shallow trench using silicon implanted oxide |
KR100480897B1 (ko) * | 2002-12-09 | 2005-04-07 | 매그나칩 반도체 유한회사 | 반도체소자의 소자분리막 형성방법 |
US7071515B2 (en) * | 2003-07-14 | 2006-07-04 | Taiwan Semiconductor Manufacturing Co., Ltd. | Narrow width effect improvement with photoresist plug process and STI corner ion implantation |
-
2003
- 2003-07-09 KR KR1020030046350A patent/KR100950749B1/ko active IP Right Grant
- 2003-12-22 US US10/744,427 patent/US6921705B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20010001206A (ko) * | 1999-06-02 | 2001-01-05 | 황인길 | 반도체 소자 분리를 위한 얕은 트렌치 제조 방법 |
US20020182826A1 (en) * | 2001-05-29 | 2002-12-05 | Shui-Ming Cheng | Fabrication method for a shallow trench isolation structure |
Also Published As
Publication number | Publication date |
---|---|
KR20050006511A (ko) | 2005-01-17 |
US20050009292A1 (en) | 2005-01-13 |
US6921705B2 (en) | 2005-07-26 |
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