KR20070045608A - 반도체 소자의 게이트 산화막 제조방법 - Google Patents
반도체 소자의 게이트 산화막 제조방법 Download PDFInfo
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- KR20070045608A KR20070045608A KR1020050102048A KR20050102048A KR20070045608A KR 20070045608 A KR20070045608 A KR 20070045608A KR 1020050102048 A KR1020050102048 A KR 1020050102048A KR 20050102048 A KR20050102048 A KR 20050102048A KR 20070045608 A KR20070045608 A KR 20070045608A
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- Prior art keywords
- oxide film
- gate oxide
- high voltage
- region
- low voltage
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 23
- -1 fluoride ions Chemical class 0.000 claims abstract description 21
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 15
- 238000005530 etching Methods 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 5
- 238000005468 ion implantation Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 229910052796 boron Inorganic materials 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 229910008284 Si—F Inorganic materials 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000000593 degrading effect Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000005527 interface trap Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- KSPMJHKUXSQDSZ-UHFFFAOYSA-N [N].[N] Chemical compound [N].[N] KSPMJHKUXSQDSZ-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/0123—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs
- H10D84/0126—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs
- H10D84/0144—Manufacturing their gate 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
- H01L21/22—Diffusion of impurity materials, e.g. doping materials, electrode materials, into or out of a semiconductor body, or between semiconductor regions; Interactions between two or more impurities; Redistribution of impurities
- H01L21/225—Diffusion of impurity materials, e.g. doping materials, electrode materials, into or out of a semiconductor body, or between semiconductor regions; Interactions between two or more impurities; Redistribution of impurities using diffusion into or out of a solid from or into a solid phase, e.g. a doped oxide layer
- H01L21/2251—Diffusion into or out of group IV semiconductors
- H01L21/2252—Diffusion into or out of group IV semiconductors using predeposition of impurities into the semiconductor surface, e.g. from a gaseous phase
- H01L21/2253—Diffusion into or out of group IV semiconductors using predeposition of impurities into the semiconductor surface, e.g. from a gaseous phase by ion implantation
-
- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28185—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation with a treatment, e.g. annealing, after the formation of the gate insulator and before the formation of the definitive gate conductor
-
- 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
- H01L21/324—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Formation Of Insulating Films (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (6)
- 저전압 영역과 고전압 영역이 정의된 기판을 준비하는 단계;상기 기판 상에 제1 산화막을 성장시키는 단계;상기 고전압 영역에 형성된 제1 산화막을 제외한 나머지 영역에 형성된 제1 산화막을 제거하는 단계;상기 제1 산화막이 제거된 저전압 영역의 기판 내에 플로오르 이온을 주입하는 단계;상기 플로오르 이온이 주입된 기판 상에 제2 산화막을 성장시키는 단계;상기 성장된 제2 산화막 상에 저전압용 게이트 산화막 및 고전압용 게이트 산화막 형성 영역을 정의하는 감광막 패턴을 형성하는 단계; 및상기 감광막 패턴을 식각 마스크로 하여 제1 및 제2 산화막을 식각함으로써 저전압용 게이트 산화막 및 고전압용 게이트 산화막을 형성하는 단계;를 포함하는 것을 특징으로 하는 반도체 소자의 게이트 산화막 제조방법.
- 제1항에 있어서,상기 고전압 영역에 형성된 제1 산화막을 제외한 나머지 영역에 형성된 제1 산화막을 제거하는 단계는, 제1 산화막 상에 고전압 영역을 차단하는 감광막 패턴을 형성하는 단계 및 상기 감광막 패턴을 식각 마스크로 하여 제1 산화막을 제거하 는 단계를 포함하여 이루어 지는 것을 특징으로 하는 반도체 소자의 게이트 산화막 제조방법.
- 제2항에 있어서,상기 고전압 영역을 차단하는 감광막 패턴은, 상기 플로오르 이온 주입시 이온 주입 마스크로 사용되는 것을 특징으로 하는 반도체 소자의 게이트 산화막 제조방법.
- 제1항에 있어서,상기 플로오르 이온은, 플라즈마 상태에서 주입하는 것을 특징으로 하는 반도체 소자의 게이트 산화막 제조방법.
- 제4항에 있어서,상기 플로오르 이온은, 1keV 내지 15keV의 에너지로 주입하는 것을 특징으로 하는 반도체 소자의 게이트 산화막 제조방법
- 제4항에 있어서,상기 플로오르 이온은, 5e14 내지 5e15/㎠의 농도로 주입하는 것을 특징으로 하는 반도체 소자의 게이트 산화막 제조방법.
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KR1020050102048A KR101348400B1 (ko) | 2005-10-27 | 2005-10-27 | 반도체 소자의 게이트 산화막 제조방법 |
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KR1020050102048A KR101348400B1 (ko) | 2005-10-27 | 2005-10-27 | 반도체 소자의 게이트 산화막 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20070045608A true KR20070045608A (ko) | 2007-05-02 |
KR101348400B1 KR101348400B1 (ko) | 2014-01-09 |
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KR1020050102048A Active KR101348400B1 (ko) | 2005-10-27 | 2005-10-27 | 반도체 소자의 게이트 산화막 제조방법 |
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Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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KR19990004657A (ko) * | 1997-06-28 | 1999-01-15 | 김영환 | 반도체 소자의 제조방법 |
JP4437352B2 (ja) * | 2000-02-29 | 2010-03-24 | 富士通マイクロエレクトロニクス株式会社 | 半導体装置の製造方法 |
KR20040101640A (ko) * | 2003-05-26 | 2004-12-03 | 매그나칩 반도체 유한회사 | 반도체 소자의 게이트 산화막 형성 방법 |
KR101019695B1 (ko) * | 2003-12-10 | 2011-03-07 | 주식회사 하이닉스반도체 | 반도체 소자의 듀얼 게이트 산화막 형성방법 |
KR100532769B1 (ko) * | 2003-12-30 | 2005-12-01 | 동부아남반도체 주식회사 | 반도체 장치의 제조방법 |
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