KR100420533B1 - 플라즈마 공정장치 및 이를 이용한 플라즈마 식각방법 - Google Patents
플라즈마 공정장치 및 이를 이용한 플라즈마 식각방법 Download PDFInfo
- Publication number
- KR100420533B1 KR100420533B1 KR10-2001-0076578A KR20010076578A KR100420533B1 KR 100420533 B1 KR100420533 B1 KR 100420533B1 KR 20010076578 A KR20010076578 A KR 20010076578A KR 100420533 B1 KR100420533 B1 KR 100420533B1
- Authority
- KR
- South Korea
- Prior art keywords
- plasma
- high frequency
- antenna
- parallel resonance
- pulse
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000001020 plasma etching Methods 0.000 title claims description 8
- 239000003990 capacitor Substances 0.000 claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004065 semiconductor Substances 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 2
- 229910052581 Si3N4 Inorganic materials 0.000 claims 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims 1
- 238000005530 etching Methods 0.000 abstract description 15
- 238000010494 dissociation reaction Methods 0.000 abstract description 6
- 230000005593 dissociations Effects 0.000 abstract description 6
- 239000010409 thin film Substances 0.000 abstract description 3
- 229910052681 coesite Inorganic materials 0.000 abstract description 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 2
- 239000000377 silicon dioxide Substances 0.000 abstract description 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 2
- 229910052682 stishovite Inorganic materials 0.000 abstract description 2
- 229910052905 tridymite Inorganic materials 0.000 abstract description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 19
- 239000007789 gas Substances 0.000 description 13
- 238000009616 inductively coupled plasma Methods 0.000 description 7
- 235000012431 wafers Nutrition 0.000 description 6
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 229910004541 SiN Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
- H01J37/321—Radio frequency generated discharge the radio frequency energy being inductively coupled to the plasma
- H01J37/3211—Antennas, e.g. particular shapes of coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
- H01J37/32091—Radio frequency generated discharge the radio frequency energy being capacitively coupled to the plasma
-
- 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
-
- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67063—Apparatus for fluid treatment for etching
- H01L21/67069—Apparatus for fluid treatment for etching for drying etching
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Analytical Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Plasma & Fusion (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Plasma Technology (AREA)
- Drying Of Semiconductors (AREA)
Abstract
Description
Claims (4)
- 반도체소자 제조공정이 진행되는 진공챔버;복수개의 안테나 코일이 서로 병렬연결되어 이루어지는 병렬 공명 안테나;상기 진공챔버 내에 플라즈마가 발생되도록 상기 병렬 공명 안테나에 고주파 전력을 동작 책무비(duty ratio)가 5 내지 95%가 되도록 펄스형태로 인가하는 펄스 변조 고주파 발진기;상기 펄스 변조 고주파 발진기와 상기 병렬 공명 안테나 사이의 임피던스 정합을 위하여 설치되는 임피던스 정합장치;상기 임피던스 정합장치와 상기 병렬 공명 안테나 사이에 직렬로 설치되는 공명 커패시터;를 구비하는 것을 특징으로 하는 플라즈마 공정장치.
- 제1항에 있어서, 상기 펄스 주기가 5μsec ~ 0.1 sec인 것을 특징으로 하는 플라즈마 공정장치.
- 제1항의 플라즈마 공정장치를 이용하는 플라즈마 식각방법에 있어서,실리콘산화막이 표면에 형성된 기판을 상기 진공챔버에 장입한 후에, 상기 진공챔버에 CFx 함유 기체를 공급하면서 상기 펄스 변조 고주파 발진기를 통하여상기 병렬 공명 안테나에 13.56 내지 300MHz의 주파수를 갖는 고주파 전력을 5μsec ~ 0.1 sec의 펄스주기로 인가하되 그 동작 책무비가 5 내지 95%가 되도록 인가하여 상기 CFx 함유기체를 플라즈마 상태로 만들어 상기 실리콘산화막을 식각하는 것을 특징으로 하는 플라즈마 식각방법.
- 제3항에 있어서, 상기 실리콘산화막이 실리콘질화막 상에 형성되어 있는 것을 특징으로 하는 플라즈마 식각방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0076578A KR100420533B1 (ko) | 2001-12-05 | 2001-12-05 | 플라즈마 공정장치 및 이를 이용한 플라즈마 식각방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0076578A KR100420533B1 (ko) | 2001-12-05 | 2001-12-05 | 플라즈마 공정장치 및 이를 이용한 플라즈마 식각방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030046143A KR20030046143A (ko) | 2003-06-12 |
KR100420533B1 true KR100420533B1 (ko) | 2004-03-02 |
Family
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Family Applications (1)
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KR10-2001-0076578A KR100420533B1 (ko) | 2001-12-05 | 2001-12-05 | 플라즈마 공정장치 및 이를 이용한 플라즈마 식각방법 |
Country Status (1)
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KR (1) | KR100420533B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005072260A (ja) * | 2003-08-25 | 2005-03-17 | Sanyo Electric Co Ltd | プラズマ処理方法、プラズマエッチング方法、固体撮像素子の製造方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001085196A (ja) * | 1999-08-26 | 2001-03-30 | Jusung Engineering Co Ltd | 誘導結合型プラズマ発生用アンテナ装置 |
KR200253559Y1 (ko) * | 2001-07-30 | 2001-11-22 | 주식회사 플라즈마트 | 회전방향으로 균일한 플라즈마 밀도를 발생시키는유도결합형 플라즈마 발생장치의 안테나구조 |
KR20020035249A (ko) * | 2000-11-06 | 2002-05-11 | 장홍영 | 유도결합으로 보강된 축전결합형 플라즈마 발생장치 및플라즈마 발생방법 |
-
2001
- 2001-12-05 KR KR10-2001-0076578A patent/KR100420533B1/ko not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001085196A (ja) * | 1999-08-26 | 2001-03-30 | Jusung Engineering Co Ltd | 誘導結合型プラズマ発生用アンテナ装置 |
KR20020035249A (ko) * | 2000-11-06 | 2002-05-11 | 장홍영 | 유도결합으로 보강된 축전결합형 플라즈마 발생장치 및플라즈마 발생방법 |
KR200253559Y1 (ko) * | 2001-07-30 | 2001-11-22 | 주식회사 플라즈마트 | 회전방향으로 균일한 플라즈마 밀도를 발생시키는유도결합형 플라즈마 발생장치의 안테나구조 |
Also Published As
Publication number | Publication date |
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KR20030046143A (ko) | 2003-06-12 |
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