KR20040006466A - 반도체 소자의 소자분리막 형성방법 - Google Patents
반도체 소자의 소자분리막 형성방법 Download PDFInfo
- Publication number
- KR20040006466A KR20040006466A KR1020020040758A KR20020040758A KR20040006466A KR 20040006466 A KR20040006466 A KR 20040006466A KR 1020020040758 A KR1020020040758 A KR 1020020040758A KR 20020040758 A KR20020040758 A KR 20020040758A KR 20040006466 A KR20040006466 A KR 20040006466A
- Authority
- KR
- South Korea
- Prior art keywords
- nitride film
- film
- silicon
- trench
- silicon nitride
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 75
- 238000002955 isolation Methods 0.000 title claims abstract description 30
- 239000004065 semiconductor Substances 0.000 title claims abstract description 10
- 150000004767 nitrides Chemical class 0.000 claims abstract description 36
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 33
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 238000000151 deposition Methods 0.000 claims abstract description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 14
- 239000010703 silicon Substances 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 13
- 238000005530 etching Methods 0.000 claims abstract description 12
- 230000008021 deposition Effects 0.000 claims abstract description 11
- 238000005229 chemical vapour deposition Methods 0.000 claims abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 230000004888 barrier function Effects 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 16
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 238000001039 wet etching Methods 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
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
- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/0217—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material being a silicon nitride not containing oxygen, e.g. SixNy or SixByNz
-
- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
Landscapes
- 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)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Element Separation (AREA)
Abstract
Description
Claims (4)
- 패드질화막을 식각 장벽으로 이용한 식각 공정을 통해 실리콘 기판의 소자분리 영역에 트렌치를 형성하는 단계와, 상기 트렌치 부분의 스트레스를 완화시킬 목적으로 선형질화막(liner nitride)을 증착하는 단계와, 상기 트렌치 내에 산화막을 매립시키는 단계와, 상기 패드질화막을 제거하는 단계를 포함하는 반도체 소자의 소자분리막 형성방법에 있어서,상기 패드질화막 및 선형질화막은 매엽식(single type) 챔버를 이용한 화학기상증착 공정에 따라 기판 상부면에만 실리콘질화막을 증착시켜 형성하는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.
- 제 1 항에 있어서, 상기 실리콘질화막의 매엽식 챔버를 이용한 화학기상증착 공정은 증착 온도를 600∼800℃, 그리고, 증착 압력을 1∼500torr로 하여 수행하는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.
- 제 1 항 또는 제 2 항에 있어서, 상기 실리콘질화막의 매엽식 챔버를 이용한 화학기상증착 공정은소오스 가스인 SiH4및 NH3가스, 또는, SiH2Cl2및 NH3가스의 유량비를 조절하여 질소 대 실리콘의 조성비를 조절하는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.
- 제 3 항에 있어서, 상기 질소 대 실리콘의 조성비는 4:3∼4:4로 조절하는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020040758A KR20040006466A (ko) | 2002-07-12 | 2002-07-12 | 반도체 소자의 소자분리막 형성방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020040758A KR20040006466A (ko) | 2002-07-12 | 2002-07-12 | 반도체 소자의 소자분리막 형성방법 |
Publications (1)
Publication Number | Publication Date |
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KR20040006466A true KR20040006466A (ko) | 2004-01-24 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020020040758A KR20040006466A (ko) | 2002-07-12 | 2002-07-12 | 반도체 소자의 소자분리막 형성방법 |
Country Status (1)
Country | Link |
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KR (1) | KR20040006466A (ko) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05206118A (ja) * | 1992-01-24 | 1993-08-13 | Sony Corp | 絶縁膜の形成方法 |
KR19990039611A (ko) * | 1997-11-13 | 1999-06-05 | 윤종용 | 개선된 연마 저지층을 갖는 트랜치 소자 분리방법 |
KR20020055196A (ko) * | 2000-12-28 | 2002-07-08 | 박종섭 | 반도체 소자의 트렌치 소자분리막 형성방법 |
-
2002
- 2002-07-12 KR KR1020020040758A patent/KR20040006466A/ko not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05206118A (ja) * | 1992-01-24 | 1993-08-13 | Sony Corp | 絶縁膜の形成方法 |
KR19990039611A (ko) * | 1997-11-13 | 1999-06-05 | 윤종용 | 개선된 연마 저지층을 갖는 트랜치 소자 분리방법 |
KR20020055196A (ko) * | 2000-12-28 | 2002-07-08 | 박종섭 | 반도체 소자의 트렌치 소자분리막 형성방법 |
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