KR950008925B1 - 박막형 가스센서 및 그 제조방법 - Google Patents
박막형 가스센서 및 그 제조방법 Download PDFInfo
- Publication number
- KR950008925B1 KR950008925B1 KR1019930006436A KR930006436A KR950008925B1 KR 950008925 B1 KR950008925 B1 KR 950008925B1 KR 1019930006436 A KR1019930006436 A KR 1019930006436A KR 930006436 A KR930006436 A KR 930006436A KR 950008925 B1 KR950008925 B1 KR 950008925B1
- Authority
- KR
- South Korea
- Prior art keywords
- insulating film
- gas sensor
- forming
- thin film
- film
- Prior art date
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- 239000010409 thin film Substances 0.000 title claims description 27
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000010408 film Substances 0.000 claims description 43
- 229910006404 SnO 2 Inorganic materials 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 12
- 230000004888 barrier function Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 6
- 229910052863 mullite Inorganic materials 0.000 claims description 6
- 238000004528 spin coating Methods 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 150000004703 alkoxides Chemical class 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 14
- 235000012431 wafers Nutrition 0.000 description 14
- 238000005530 etching Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 238000004544 sputter deposition Methods 0.000 description 7
- 229910052697 platinum Inorganic materials 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000000151 deposition Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 238000003980 solgel method Methods 0.000 description 2
- 239000007853 buffer solution Substances 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
Description
Claims (4)
- 실리콘웨이퍼(1)위에 열산화법으로 제4절연막(8)을 형성하는 단계와, 상기 제4절연막(8)위에 열차단층(9)을 형성하는 단계와, 상기 열차단층(9)위에 제5절연막(10)을 형성하는 단계와, 상기 제5절연막(10)위에 히터패턴(11)을 형성하는 단계와, 상기 히터패턴(11)위에 제6절연막(12)을 형성한후 그 제6절연막(12)에 히터패턴(11)의 접촉창을 형성하는 단계와, 상기 제6절연막(12)위에 금속전극(13)을 형성하는 단계와, 상기 금속전극(13)위에 SnO2감지막(14)을 형성하는 단계를 포함하는 것을 특징으로 하는 박막형 가스센서 제조방법.
- 제1항에 있어서, 상기 열차단층(9)은 뮬라이트(2SiO2ㆍ3Al2O3)로 이루어진것을 특징으로 하는 박막형 가스센서 제조방법.
- 제1항에 있어서, 상기 SnO2감지막(14)은 알콕사이드(Alkoxide)를 알콜에 용해시켜 졸(so1)용액을 만든후 이 졸용액을 스핀코팅(spin coating)하여 형성하는 것을 특징으로 하는 박막형 가스센서 제조방법.
- 실리콘 웨이퍼(1)위에 제4절연막(8), 열차단층(9), 제5절연막(10)이 연속으로 형성되고, 상기 제5절연막(10)위에 히터패턴(11)이 형성되고, 상기 히터패턴(11)위에 접촉창이 형성된 제6절연막(12)이 형성되고, 상기 제6절연막(12)위에 금속전극(13)과 SnO2감지막(14)이 차례로 형성되어 구성되는 것을 특징으로 하는 박막형 가스센서.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930006436A KR950008925B1 (ko) | 1993-04-16 | 1993-04-16 | 박막형 가스센서 및 그 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930006436A KR950008925B1 (ko) | 1993-04-16 | 1993-04-16 | 박막형 가스센서 및 그 제조방법 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR950008925B1 true KR950008925B1 (ko) | 1995-08-09 |
Family
ID=19354070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930006436A KR950008925B1 (ko) | 1993-04-16 | 1993-04-16 | 박막형 가스센서 및 그 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR950008925B1 (ko) |
-
1993
- 1993-04-16 KR KR1019930006436A patent/KR950008925B1/ko not_active IP Right Cessation
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