KR20040021371A - 반도체 소자의 셀로우 트렌치 분리막 형성 방법 - Google Patents
반도체 소자의 셀로우 트렌치 분리막 형성 방법 Download PDFInfo
- Publication number
- KR20040021371A KR20040021371A KR1020020053192A KR20020053192A KR20040021371A KR 20040021371 A KR20040021371 A KR 20040021371A KR 1020020053192 A KR1020020053192 A KR 1020020053192A KR 20020053192 A KR20020053192 A KR 20020053192A KR 20040021371 A KR20040021371 A KR 20040021371A
- Authority
- KR
- South Korea
- Prior art keywords
- trench
- forming
- photoresist layer
- layer
- silicon substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims abstract description 64
- 238000002955 isolation Methods 0.000 title claims abstract description 21
- 239000004065 semiconductor Substances 0.000 title claims abstract description 15
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 35
- 150000004767 nitrides Chemical class 0.000 claims abstract description 26
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 23
- 239000010703 silicon Substances 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 238000005530 etching Methods 0.000 claims abstract description 15
- 238000004140 cleaning Methods 0.000 claims description 11
- 230000003647 oxidation Effects 0.000 claims description 11
- 238000007254 oxidation reaction Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 6
- 238000001312 dry etching Methods 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 2
- 238000000059 patterning Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 238000001020 plasma etching Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 125000001153 fluoro group Chemical class F* 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- 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
- H01L21/76232—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials of trenches having a shape other than rectangular or V-shape, e.g. rounded corners, oblique or rounded trench walls
-
- 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
-
- 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
- H01L21/3083—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
- H01L21/3086—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane characterised by the process involved to create the mask, e.g. lift-off masks, sidewalls, or to modify the mask, e.g. pre-treatment, post-treatment
-
- 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
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Element Separation (AREA)
Abstract
Description
Claims (4)
- 실리콘 기판상에 산화막과 질화막을 순차 적층하는 제 1 단계와,상기 질화막 상부에 포토레지스트층을 형성한 후 상기 포토레지스트층을 패터닝하여 식각하고자 하는 부분을 노출시키는 포토레지스트 패턴을 형성하는 제 2 단계와,상기 포토레지스트층을 식각 마스크로 하여 상기 실리콘 기판에 트렌치를 형성하는 제 3 단계와,상기 포토레지스트층의 상면과 측면을 소정 두께로 제거하여 마스크 패턴을 수정하는 제 4 단계와,상기 패턴이 수정된 포토레지스트층을 식각 마스크로 하여 상기 질화막을 선택적으로 건식 식각하며, 상기 식각된 질화막 아래의 상기 실리콘 기판이 오버 식각되어 상기 트렌치의 상부 에지 영역에 라운딩이 형성되는 제 5 단계와,상기 포토레지스트층을 제거한 후 세정 공정을 거치며 트렌치를 포함한 구조물 전면에 트렌치 충진 물질을 증착하여 트렌치 분리막을 형성하고, 평탄화 공정을 수행하여 상기 질화막의 상부 영역에 존재하는 상기 트렌치 분리막을 제거하는 제 6 단계를 포함하는 반도체 소자의 셀로우 트렌치 분리막 형성 방법.
- 제 1 항에 있어서,상기 세정 공정 이후에 열공정을 통해 상기 트렌치의 표면을 성장시켜 트렌치 라이너 산화막을 형성하는 STI 라이너 산화 공정을 더 포함하며,상기 산화 공정 중 상기 실리콘 기판의 일부가 반응을 일으켜 상기 트렌치의 상부 에지 부분이 다시 한번 라운딩 가공되는 것을 특징으로 한 반도체 소자의 셀로우 트렌치 분리막 형성 방법.
- 제 1 항에 있어서, 상기 제 4 단계는,상기 포토레지스트층의 제거할 상면과 측면의 두께를 후속 세정 공정에서 손실되는 상기 산화막의 두께를 감안하여 결정하는 것을 특징으로 한 반도체 소자의 셀로우 트렌치 분리막 형성 방법.
- 제 1 항 또는 제 3 항에 있어서, 상기 제 4 단계는,디스컴(Descum) 공정을 적용하여 상기 포토레지스트층을 부분 제거하는 것을 특징으로 한 반도체 소자의 셀로우 트렌치 분리막 형성 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020053192A KR20040021371A (ko) | 2002-09-04 | 2002-09-04 | 반도체 소자의 셀로우 트렌치 분리막 형성 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020053192A KR20040021371A (ko) | 2002-09-04 | 2002-09-04 | 반도체 소자의 셀로우 트렌치 분리막 형성 방법 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20040021371A true KR20040021371A (ko) | 2004-03-10 |
Family
ID=37325573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020020053192A Ceased KR20040021371A (ko) | 2002-09-04 | 2002-09-04 | 반도체 소자의 셀로우 트렌치 분리막 형성 방법 |
Country Status (1)
Country | Link |
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KR (1) | KR20040021371A (ko) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980060506A (ko) * | 1996-12-31 | 1998-10-07 | 김영환 | 반도체 소자의 소자 분리막 형성방법 |
US6093621A (en) * | 1999-04-05 | 2000-07-25 | Vanguard International Semiconductor Corp. | Method of forming shallow trench isolation |
KR20010046153A (ko) * | 1999-11-10 | 2001-06-05 | 박종섭 | 반도체장치의 트렌치 구조의 소자분리막 형성방법 |
US6261921B1 (en) * | 1999-07-31 | 2001-07-17 | Taiwan Semiconductor Manufacturing Co., Ltd. | Method of forming shallow trench isolation structure |
KR20010068644A (ko) * | 2000-01-07 | 2001-07-23 | 박종섭 | 반도체장치의 소자격리방법 |
US6335259B1 (en) * | 2001-02-22 | 2002-01-01 | Macronix International Co., Ltd. | Method of forming shallow trench isolation |
KR100338948B1 (ko) * | 1999-12-14 | 2002-05-31 | 박종섭 | 반도체 장치의 분리구조 형성방법 |
-
2002
- 2002-09-04 KR KR1020020053192A patent/KR20040021371A/ko not_active Ceased
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980060506A (ko) * | 1996-12-31 | 1998-10-07 | 김영환 | 반도체 소자의 소자 분리막 형성방법 |
US6093621A (en) * | 1999-04-05 | 2000-07-25 | Vanguard International Semiconductor Corp. | Method of forming shallow trench isolation |
US6261921B1 (en) * | 1999-07-31 | 2001-07-17 | Taiwan Semiconductor Manufacturing Co., Ltd. | Method of forming shallow trench isolation structure |
KR20010046153A (ko) * | 1999-11-10 | 2001-06-05 | 박종섭 | 반도체장치의 트렌치 구조의 소자분리막 형성방법 |
KR100338948B1 (ko) * | 1999-12-14 | 2002-05-31 | 박종섭 | 반도체 장치의 분리구조 형성방법 |
KR20010068644A (ko) * | 2000-01-07 | 2001-07-23 | 박종섭 | 반도체장치의 소자격리방법 |
US6335259B1 (en) * | 2001-02-22 | 2002-01-01 | Macronix International Co., Ltd. | Method of forming shallow trench isolation |
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