KR20140137150A - 반도체 가스센서 - Google Patents
반도체 가스센서 Download PDFInfo
- Publication number
- KR20140137150A KR20140137150A KR1020130057672A KR20130057672A KR20140137150A KR 20140137150 A KR20140137150 A KR 20140137150A KR 1020130057672 A KR1020130057672 A KR 1020130057672A KR 20130057672 A KR20130057672 A KR 20130057672A KR 20140137150 A KR20140137150 A KR 20140137150A
- Authority
- KR
- South Korea
- Prior art keywords
- heater
- electrode pattern
- sensing
- gas sensor
- power
- Prior art date
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- 239000004065 semiconductor Substances 0.000 title abstract description 42
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 239000011540 sensing material Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 15
- 230000007423 decrease Effects 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 51
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000151 deposition Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 4
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 229910000416 bismuth oxide Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
Description
도 2는 종래의 반도체 가스센서를 개략적으로 나타낸 분해 사시도이다.
도 3은 본 발명의 일실시예에 따른 반도체 가스센서를 개략적으로 나타낸 단면도이다.
도 4는 본 발명의 일실시예에 따른 반도체 가스센서를 개략적으로 나타낸 분해사시도이다.
도 5는 도 4의 A를 확대한 도면이다.
도 6은 본 발명의 일실시예에 따른 반도체 가스센서의 등가 회로도이다.
도 7은 본 발명의 다른 일실시예에 따른 반도체 가스센서를 나타낸 등가 회로도이다.
도 8은 본 발명의 일실시예에 따른 반도체 가스센서의 출력값을 온도에 따라 측정한 실험 데이터이다.
10, 120: 히터 20, 130: 전원 전극 패턴
50, 140: 감지 전극 패턴 70, 150: 감지물
170: 고정 저항
Claims (6)
- 기판 위에 형성되는 히터;
양 전원 전극 패턴과 음 전원 전극 패턴으로 이루어져 상기 히터에 전원을 공급하는 전원 전극 패턴;
일부분이 상기 히터의 인접한 위치에 위치하는 감지 전극 패턴; 및
상기 감지 전극 패턴의 일부와 상기 히터를 덮는 감지물을 포함하고,
상기 양 전원 전극 패턴, 상기 히터, 상기 감지물 및 상기 감지 전극 패턴은 전기적으로 직렬 연결되는 반도체 가스센서. - 제1항에 있어서,
상기 히터는 대략 원형이고,
상기 감지 전극 패턴은 상기 감지물과 전기적으로 연결되는 접촉부를 포함하고,
상기 접촉부는 상기 히터의 둘레를 감싸는 형상을 가지는 반도체 가스센서. - 제2항에 있어서,
상기 접촉부는 상기 히터와 상기 양 전원 적극 패턴과 연결되는 부분의 인접한 위치에 위치하는 반도체 가스센서. - 제1항에 있어서,
상기 히터 패턴과 상기 감지 전극 패턴은 동일한 평면에 형성되는 반도체 가스센서. - 제1항에 있어서,
상기 감지 전극 패턴은 상기 히터에 인접한 위치에 위치하는 접촉부와 상기 기판의 가장자리 부분에 위치하는 감지 전극을 포함하고,
상기 감지 전극에는 전압분배 회로 구성을 위한 고정 저항이 연결되고,
상기 감지물과 상기 고정 저항은 온도변화에 따른 저항 값 변화율이 유사한 반도체 가스센서. - 제5항에 있어서,
상기 감지물은 온도가 증가할수록 저항 값이 감소하고,
상기 고정 저항은 엔티씨 서미스터(Negative Temperature Coefficient Thermistor)인 반도체 가스센서.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130057672A KR20140137150A (ko) | 2013-05-22 | 2013-05-22 | 반도체 가스센서 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130057672A KR20140137150A (ko) | 2013-05-22 | 2013-05-22 | 반도체 가스센서 |
Publications (1)
Publication Number | Publication Date |
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KR20140137150A true KR20140137150A (ko) | 2014-12-02 |
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Family Applications (1)
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KR1020130057672A KR20140137150A (ko) | 2013-05-22 | 2013-05-22 | 반도체 가스센서 |
Country Status (1)
Country | Link |
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KR (1) | KR20140137150A (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101842648B1 (ko) * | 2017-01-25 | 2018-03-28 | 한국산업기술대학교산학협력단 | Mems 구조를 가지는 히터 임베디드 유해 가스 센서의 제작방법 |
KR20200009523A (ko) * | 2018-07-19 | 2020-01-30 | 한국광기술원 | 가스센서 패키지 및 그를 제조하는 방법 |
-
2013
- 2013-05-22 KR KR1020130057672A patent/KR20140137150A/ko not_active Application Discontinuation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101842648B1 (ko) * | 2017-01-25 | 2018-03-28 | 한국산업기술대학교산학협력단 | Mems 구조를 가지는 히터 임베디드 유해 가스 센서의 제작방법 |
KR20200009523A (ko) * | 2018-07-19 | 2020-01-30 | 한국광기술원 | 가스센서 패키지 및 그를 제조하는 방법 |
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