KR100323026B1 - 반도체 세라믹, 반도체 세라믹 소자 및 회로 보호 소자 - Google Patents
반도체 세라믹, 반도체 세라믹 소자 및 회로 보호 소자 Download PDFInfo
- Publication number
- KR100323026B1 KR100323026B1 KR1020000022833A KR20000022833A KR100323026B1 KR 100323026 B1 KR100323026 B1 KR 100323026B1 KR 1020000022833 A KR1020000022833 A KR 1020000022833A KR 20000022833 A KR20000022833 A KR 20000022833A KR 100323026 B1 KR100323026 B1 KR 100323026B1
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- KR
- South Korea
- Prior art keywords
- semiconductor ceramic
- resistance
- resistance value
- semiconductor
- room temperature
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
- C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
- C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
- C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
- C04B35/4682—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates based on BaTiO3 perovskite phase
- C04B35/4684—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates based on BaTiO3 perovskite phase containing lead compounds
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
- H01C7/022—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances
- H01C7/023—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances containing oxides or oxidic compounds, e.g. ferrites
- H01C7/025—Perovskites, e.g. titanates
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Thermistors And Varistors (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
Description
샘플번호 | 입내저항값(Ω) | 입계저항값(Ω) | 전체저항값(Ω) | 입내저항값/전체저항값의비율 | 실온비저항(Ω·㎠) | 저항온도특성(%/℃) | 소성분위기 |
※ 1 | 0.74 | 1.64 | 2.38 | 0.31 | 3.8 | 12.1 | 대기만 |
2 | 0.7 | 1.19 | 1.89 | 0.37 | 3.0 | 12.8 | N2+O2 |
3 | 0.75 | 0.82 | 1.57 | 0.48 | 2.5 | 11.8 | N2+O2 |
4 | 0.82 | 0.82 | 1.64 | 0.50 | 2.6 | 10.7 | N2+O2 |
5 | 0.79 | 0.72 | 1.51 | 0.52 | 2.4 | 10.9 | H2/N2+O2 |
6 | 0.93 | 0.71 | 1.64 | 0.57 | 2.6 | 12.5 | N2+O2 |
7 | 0.88 | 0.63 | 1.51 | 0.58 | 2.4 | 10.8 | N2+O2 |
8 | 0.84 | 0.61 | 1.45 | 0.58 | 2.3 | 11.1 | H2/N2+O2 |
9 | 0.84 | 0.54 | 1.38 | 0.61 | 2.2 | 11.4 | N2+O2 |
10 | 0.95 | 0.56 | 1.51 | 0.63 | 2.4 | 11.9 | N2+O2 |
11 | 0.86 | 0.33 | 1.19 | 0.72 | 1.9 | 10.6 | H2/N2+O2 |
12 | 0.84 | 0.29 | 1.13 | 0.74 | 1.8 | 9.9 | N2+O2 |
13 | 0.77 | 0.17 | 0.94 | 0.82 | 1.5 | 9.1 | H2/N2+O2 |
※14 | 0.55 | 0.08 | 0.63 | 0.88 | 1.0 | 2.9 | N2만 |
※는 본 발명의 범위를 벗어나는 자료를 나타냄 |
Claims (4)
- 정 저항 온도 계수를 가지는 반도체 세라믹으로서,R1이 결정 입자의 입내(transgranular) 저항값이고, R2가 결정 입자의 입계(intergranular) 저항값이고, R1+R2가 R1과 R2의 합계를 나타내는 전체 저항값일 때, R1/(R1+R2)의 비율이 0.35∼0.85인 것을 특징으로 하는 반도체 세라믹.
- 제 1 항에 있어서, 상기 결정 입자는 티탄산 바륨을 포함하는 것을 특징으로 하는 반도체 세라믹.
- 제 1 항 또는 제 2 항에 기재된 반도체 세라믹 위에 전극을 형성한 것을 특징으로 하는 반도체 세라믹 소자.
- 제 3 항에 기재된 반도체 세라믹 소자에 의해 형성되는 것을 특징으로 하는 회로 보호 소자.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12250599A JP3506044B2 (ja) | 1999-04-28 | 1999-04-28 | 半導体セラミック、半導体セラミック素子、および回路保護素子 |
JP11-122505 | 1999-04-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010014844A KR20010014844A (ko) | 2001-02-26 |
KR100323026B1 true KR100323026B1 (ko) | 2002-02-08 |
Family
ID=14837517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020000022833A KR100323026B1 (ko) | 1999-04-28 | 2000-04-28 | 반도체 세라믹, 반도체 세라믹 소자 및 회로 보호 소자 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6455454B1 (ko) |
JP (1) | JP3506044B2 (ko) |
KR (1) | KR100323026B1 (ko) |
DE (1) | DE10021051B4 (ko) |
FR (1) | FR2792933A1 (ko) |
TW (1) | TW476971B (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3554786B2 (ja) * | 2000-12-05 | 2004-08-18 | 株式会社村田製作所 | 半導体セラミック、消磁用正特性サーミスタ、消磁回路、および半導体セラミックの製造方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE297531C (ko) * | ||||
JPS57157502A (en) * | 1981-03-24 | 1982-09-29 | Murata Manufacturing Co | Barium titanate series porcelain composition |
JPH075363B2 (ja) * | 1989-07-20 | 1995-01-25 | 日本鋼管株式会社 | Ptc磁器組成物及びその製造方法 |
EP0415428B1 (en) * | 1989-08-31 | 1994-06-08 | Central Glass Company, Limited | Powder composition for sintering into modified barium titanate semiconductive ceramic |
JPH0388770A (ja) * | 1989-08-31 | 1991-04-15 | Central Glass Co Ltd | チタン酸バリウム系半導体磁器組成物並びにサーミスター |
US5219811A (en) * | 1989-08-31 | 1993-06-15 | Central Glass Company, Limited | Powder composition for sintering into modified barium titanate semiconductive ceramic |
JPH0551254A (ja) * | 1991-08-21 | 1993-03-02 | Murata Mfg Co Ltd | チタン酸バリウム系半導体磁器組成物 |
EP0694930A4 (en) * | 1993-04-14 | 1997-04-09 | Komatsu Mfg Co Ltd | THERMISTOR WITH POSITIVE CHARACTERISTICS |
JP3141642B2 (ja) * | 1993-09-06 | 2001-03-05 | 松下電器産業株式会社 | 正特性サーミスタの製造方法 |
JPH0922801A (ja) * | 1995-07-04 | 1997-01-21 | Murata Mfg Co Ltd | 半導体磁器 |
JP3319314B2 (ja) * | 1996-11-20 | 2002-08-26 | 株式会社村田製作所 | チタン酸バリウム系半導体磁器組成物 |
JP2000095562A (ja) * | 1998-07-24 | 2000-04-04 | Murata Mfg Co Ltd | 正特性サ―ミスタ用原料組成物、正特性サ―ミスタ用磁器、および正特性サ―ミスタ用磁器の製造方法 |
-
1999
- 1999-04-28 JP JP12250599A patent/JP3506044B2/ja not_active Expired - Lifetime
-
2000
- 2000-04-20 TW TW089107474A patent/TW476971B/zh not_active IP Right Cessation
- 2000-04-28 US US09/561,518 patent/US6455454B1/en not_active Expired - Lifetime
- 2000-04-28 KR KR1020000022833A patent/KR100323026B1/ko not_active IP Right Cessation
- 2000-04-28 FR FR0005471A patent/FR2792933A1/fr active Pending
- 2000-04-28 DE DE10021051A patent/DE10021051B4/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR20010014844A (ko) | 2001-02-26 |
TW476971B (en) | 2002-02-21 |
DE10021051A1 (de) | 2001-05-31 |
JP3506044B2 (ja) | 2004-03-15 |
FR2792933A1 (fr) | 2000-11-03 |
DE10021051B4 (de) | 2011-01-27 |
JP2000315601A (ja) | 2000-11-14 |
US6455454B1 (en) | 2002-09-24 |
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