KR101098438B1 - 마스크 롬 장치의 제조방법 - Google Patents
마스크 롬 장치의 제조방법 Download PDFInfo
- Publication number
- KR101098438B1 KR101098438B1 KR1020040104961A KR20040104961A KR101098438B1 KR 101098438 B1 KR101098438 B1 KR 101098438B1 KR 1020040104961 A KR1020040104961 A KR 1020040104961A KR 20040104961 A KR20040104961 A KR 20040104961A KR 101098438 B1 KR101098438 B1 KR 101098438B1
- Authority
- KR
- South Korea
- Prior art keywords
- film
- pad nitride
- nitride film
- trench
- semiconductor substrate
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- 150000004767 nitrides Chemical class 0.000 claims abstract description 28
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 25
- 229920005591 polysilicon Polymers 0.000 claims abstract description 25
- 239000004065 semiconductor Substances 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 238000005468 ion implantation Methods 0.000 claims abstract description 13
- 238000000151 deposition Methods 0.000 claims abstract description 7
- 238000005530 etching Methods 0.000 claims abstract description 7
- 230000003647 oxidation Effects 0.000 claims abstract description 7
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 7
- 238000000059 patterning Methods 0.000 claims abstract description 7
- 238000005498 polishing Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 3
- 239000002019 doping agent Substances 0.000 claims description 4
- 238000009279 wet oxidation reaction Methods 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 abstract description 11
- 230000015556 catabolic process Effects 0.000 description 8
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 6
- 229910021332 silicide Inorganic materials 0.000 description 5
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B20/00—Read-only memory [ROM] devices
- H10B20/27—ROM only
- H10B20/30—ROM only having the source region and the drain region on the same level, e.g. lateral transistors
- H10B20/38—Doping programmed, e.g. mask ROM
- H10B20/387—Source region or drain region doping programmed
-
- 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
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/265—Bombardment with radiation with high-energy radiation producing ion implantation
- H01L21/26506—Bombardment with radiation with high-energy radiation producing ion implantation in group IV semiconductors
- H01L21/26513—Bombardment with radiation with high-energy radiation producing ion implantation in group IV semiconductors of electrically active species
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- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (4)
- 반도체 기판 상에 패드 산화막 및 패드 질화막을 형성한 후, 베리드 비트라인을 정의하도록 상기 패드 질화막을 패터닝하는 단계;베리드 접합 영역을 형성하기 위하여 상기 패드 질화막을 마스크로 이온주입을 실시하는 단계;패터닝된 상기 패드 질화막을 식각 마스크로 사용하여 상기 베리드 접합 영역 내에 트렌치를 형성하는 단계;상기 트렌치가 형성된 반도체 기판 상에 상기 트렌치를 매립하도록 폴리실리콘막을 증착한 후, 상기 폴리실리콘막이 상기 반도체 기판 표면보다 위로 돌출되는 높이까지 상기 폴리실리콘막 및 상기 패드 질화막을 화학기계적 연마하는 단계;노출된 상기 패드 질화막 및 상기 패드 산화막을 식각하여 제거하는 단계;산화 공정을 이용하여 게이트 산화막을 형성하는 단계; 및상기 게이트 산화막 상에 게이트 전극용 물질막을 증착한 후, 패터닝하여 게이트 전극을 형성하는 단계를 포함하는 마스크 롬 장치의 제조방법.
- 제1항에 있어서, 상기 이온주입은 N 타입의 도펀트를 이용하여 5.0E13∼5.0E14 atoms/㎠ 도즈로 30∼60KeV 에너지를 사용하여 실시하는 것을 특징으로 하는 마스크 롬 장치의 제조방법.
- 제1항에 있어서, 상기 트렌치는 그 하부 경계면이 상기 베리드 접합 영역의 경계 내부에 위치하도록 형성하는 것을 특징으로 하는 마스크 롬 장치의 제조방법.
- 제1항에 있어서, 상기 게이트 산화막은 750℃∼900℃의 온도에서 습식 산화를 진행하여 형성하는 것을 특징으로 하는 마스크 롬 장치의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040104961A KR101098438B1 (ko) | 2004-12-13 | 2004-12-13 | 마스크 롬 장치의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040104961A KR101098438B1 (ko) | 2004-12-13 | 2004-12-13 | 마스크 롬 장치의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060066377A KR20060066377A (ko) | 2006-06-16 |
KR101098438B1 true KR101098438B1 (ko) | 2011-12-26 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040104961A KR101098438B1 (ko) | 2004-12-13 | 2004-12-13 | 마스크 롬 장치의 제조방법 |
Country Status (1)
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KR (1) | KR101098438B1 (ko) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10189776A (ja) | 1996-12-25 | 1998-07-21 | Nec Corp | 不揮発性半導体記憶装置およびその製造方法 |
JP2000114400A (ja) | 1998-10-08 | 2000-04-21 | Nec Corp | 半導体記憶装置及びその製造方法 |
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2004
- 2004-12-13 KR KR1020040104961A patent/KR101098438B1/ko active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10189776A (ja) | 1996-12-25 | 1998-07-21 | Nec Corp | 不揮発性半導体記憶装置およびその製造方法 |
JP2000114400A (ja) | 1998-10-08 | 2000-04-21 | Nec Corp | 半導体記憶装置及びその製造方法 |
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KR20060066377A (ko) | 2006-06-16 |
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