JPWO2007034830A1 - 積層型正特性サーミスタ - Google Patents
積層型正特性サーミスタ Download PDFInfo
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- JPWO2007034830A1 JPWO2007034830A1 JP2007536532A JP2007536532A JPWO2007034830A1 JP WO2007034830 A1 JPWO2007034830 A1 JP WO2007034830A1 JP 2007536532 A JP2007536532 A JP 2007536532A JP 2007536532 A JP2007536532 A JP 2007536532A JP WO2007034830 A1 JPWO2007034830 A1 JP WO2007034830A1
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- 239000000919 ceramic Substances 0.000 claims abstract description 137
- 239000004065 semiconductor Substances 0.000 claims abstract description 88
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 13
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 9
- 229910052691 Erbium Inorganic materials 0.000 claims abstract description 9
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 9
- 229910052693 Europium Inorganic materials 0.000 claims abstract description 8
- 229910052688 Gadolinium Inorganic materials 0.000 claims abstract description 8
- 229910052689 Holmium Inorganic materials 0.000 claims abstract description 8
- 229910052771 Terbium Inorganic materials 0.000 claims abstract description 8
- 229910052775 Thulium Inorganic materials 0.000 claims abstract description 6
- 238000009792 diffusion process Methods 0.000 claims description 26
- 238000010304 firing Methods 0.000 claims description 24
- 238000010030 laminating Methods 0.000 claims description 5
- 229910002113 barium titanate Inorganic materials 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 146
- 239000003795 chemical substances by application Substances 0.000 description 36
- 230000000630 rising effect Effects 0.000 description 24
- 238000000034 method Methods 0.000 description 21
- 238000011282 treatment Methods 0.000 description 13
- 239000007858 starting material Substances 0.000 description 12
- 239000004020 conductor Substances 0.000 description 11
- 239000011230 binding agent Substances 0.000 description 10
- 238000005245 sintering Methods 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 239000007772 electrode material Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229910002077 partially stabilized zirconia Inorganic materials 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- 229910010413 TiO 2 Inorganic materials 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 238000010405 reoxidation reaction Methods 0.000 description 4
- 239000000370 acceptor Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000007606 doctor blade method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910052765 Lutetium Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
Images
Classifications
-
- 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
- H01C7/021—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 formed as one or more layers or coatings
-
- 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
-
- 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
- H01C7/18—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 comprising a plurality of layers stacked between terminals
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Thermistors And Varistors (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
Description
3a、3b 内部電極層
4 セラミック素体
5a、5b 外部電極
また、外部電極5a、5bを構成する外部電極材料としては、Ag、Ag−Pd、及びPd等の貴金属の単体及び合金、またはNi,及びCu等の卑金属の単体及び合金等を使用することができ、内部電極層3a及び3bと接続及び導通が好適なものを選ぶことが好ましい。
ΔR=log(R250/R25) …(2)
α={2.303log(R150/R130)/(150−130)}×100 …(3)
尚、BaTiO3のキュリー点は125℃であることから、キュリー点以上の温度での抵抗の立ち上がり係数αを130℃〜150℃で算出した。
また、試料番号27はErの含有量がTi100モル部に対し1モル部であり、0.5モル部を超えているため、抵抗変化率ΔRが2.8桁と小さく、また立ち上がり係数αも4%/℃と小さく、室温抵抗値Xも1.48Ωと高くなることが分かった。
また、試料番号34は、BaサイトとTiサイトの比x/yが1.008であり、1.006を超えているので、特性が不安定であり、立ち上がり係数α及び抵抗変化率ΔRは、いずれも正確に測定することができなかった。
Claims (2)
- 実測焼結密度が理論焼結密度の65%以上90%以下の半導体セラミック層と内部電極層とが交互に積層されて焼結されてなるセラミック素体と、前記内部電極層と電気的に接続されるように前記セラミック素体の両端部に形成された外部電極とを有する積層型正特性サーミスタにおいて、
前記半導体セラミック層は、BaTiO3系セラミック材料を主成分とすると共に、BaサイトとTiサイトの比が0.998≦Baサイト/Tiサイト≦1.006であり、半導体化剤としてEu、Gd、Tb、Dy、Y、Ho、Er、Tmの中から選択された少なくとも1種の元素が、Ti100モル部に対し0.1モル部以上0.5モル部以下の範囲で含有されていることを特徴とする積層型正特性サーミスタ。 - 前記内部電極層はNiを主成分とすると共に、前記半導体セラミック層と前記内部電極層とは一体焼成されてなり、
前記一体焼成時に前記内部電極層から前記半導体セラミック層中に拡散して形成されるNiを主成分とする拡散層の厚みtと、前記半導体セラミック層の厚みDとの比が、0.01≦t/D≦0.20であること特徴とする請求項1記載の積層正特性サーミスタ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007536532A JP4710096B2 (ja) | 2005-09-20 | 2006-09-20 | 積層型正特性サーミスタ |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005272484 | 2005-09-20 | ||
JP2005272484 | 2005-09-20 | ||
PCT/JP2006/318630 WO2007034830A1 (ja) | 2005-09-20 | 2006-09-20 | 積層型正特性サーミスタ |
JP2007536532A JP4710096B2 (ja) | 2005-09-20 | 2006-09-20 | 積層型正特性サーミスタ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2007034830A1 true JPWO2007034830A1 (ja) | 2009-03-26 |
JP4710096B2 JP4710096B2 (ja) | 2011-06-29 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2007536532A Active JP4710096B2 (ja) | 2005-09-20 | 2006-09-20 | 積層型正特性サーミスタ |
Country Status (5)
Country | Link |
---|---|
US (1) | US7679485B2 (ja) |
EP (1) | EP1939898B1 (ja) |
JP (1) | JP4710096B2 (ja) |
CN (1) | CN101268527B (ja) |
WO (1) | WO2007034830A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4710096B2 (ja) | 2005-09-20 | 2011-06-29 | 株式会社村田製作所 | 積層型正特性サーミスタ |
TW200903527A (en) | 2007-03-19 | 2009-01-16 | Murata Manufacturing Co | Laminated positive temperature coefficient thermistor |
CN105130422A (zh) * | 2007-09-19 | 2015-12-09 | 株式会社村田制作所 | 层叠陶瓷电容器 |
EP2377837B1 (en) * | 2008-12-12 | 2018-08-08 | Murata Manufacturing Co., Ltd. | Semiconductor ceramic and positive temperature coefficient thermistor |
CN107238446A (zh) * | 2016-03-28 | 2017-10-10 | 新材料与产业技术北京研究院 | 温度检测元件及温度检测器 |
WO2019204430A1 (en) | 2018-04-17 | 2019-10-24 | Avx Corporation | Varistor for high temperature applications |
CN109727741A (zh) * | 2018-12-29 | 2019-05-07 | 广东爱晟电子科技有限公司 | 一种芯片玻璃封装工艺 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04115502A (ja) * | 1990-09-05 | 1992-04-16 | Murata Mfg Co Ltd | 半導体磁器の製造方法 |
JPH06302403A (ja) * | 1993-04-16 | 1994-10-28 | Murata Mfg Co Ltd | 積層型半導体セラミック素子 |
JP2002043103A (ja) * | 2000-05-15 | 2002-02-08 | Murata Mfg Co Ltd | 積層型半導体セラミック素子およびその製造方法 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3438736B2 (ja) * | 1992-10-30 | 2003-08-18 | 株式会社村田製作所 | 積層型半導体磁器の製造方法 |
JPH0714702A (ja) * | 1993-01-20 | 1995-01-17 | Murata Mfg Co Ltd | 正の抵抗温度特性を有する積層型半導体磁器 |
JPH06251903A (ja) * | 1993-02-26 | 1994-09-09 | Murata Mfg Co Ltd | 正の抵抗温度特性を有する積層型半導体磁器 |
JPH08153604A (ja) * | 1994-06-24 | 1996-06-11 | Teika Corp | 積層型半導体セラミック素子の製造方法 |
JPH08153605A (ja) * | 1994-06-28 | 1996-06-11 | Teika Corp | 積層型半導体セラミック素子の製造方法 |
US6359327B1 (en) * | 1998-03-05 | 2002-03-19 | Murata Manufacturing Co., Ltd. | Monolithic electronic element fabricated from semiconducting ceramic |
JP3812268B2 (ja) | 1999-05-20 | 2006-08-23 | 株式会社村田製作所 | 積層型半導体セラミック素子 |
JP3506056B2 (ja) * | 1999-08-09 | 2004-03-15 | 株式会社村田製作所 | 正の抵抗温度特性を有する積層型半導体セラミック素子、および正の抵抗温度特性を有する積層型半導体セラミック素子の製造方法 |
JP2001130957A (ja) * | 1999-11-02 | 2001-05-15 | Murata Mfg Co Ltd | 半導体磁器、半導体磁器の製造方法およびサーミスタ |
JP3498211B2 (ja) | 1999-12-10 | 2004-02-16 | 株式会社村田製作所 | 積層型半導体セラミック電子部品 |
JP4123666B2 (ja) * | 2000-01-18 | 2008-07-23 | 株式会社村田製作所 | 半導体セラミック粉末および積層型半導体セラミック電子部品 |
JP3855611B2 (ja) * | 2000-07-21 | 2006-12-13 | 株式会社村田製作所 | 半導体セラミック及び正特性サーミスタ |
JP4310452B2 (ja) * | 2002-07-25 | 2009-08-12 | 株式会社村田製作所 | 積層型正特性サーミスタおよびその製造方法 |
JP4211510B2 (ja) | 2002-08-13 | 2009-01-21 | 株式会社村田製作所 | 積層型ptcサーミスタの製造方法 |
DE112004000186B4 (de) * | 2003-02-21 | 2009-10-15 | Murata Mfg. Co., Ltd., Nagaokakyo-shi | Mehrschicht-Keramik-Elektronikkomponenten und Verfahren zur Herstellung derselben |
JP4063744B2 (ja) | 2003-09-24 | 2008-03-19 | トヨタ自動車株式会社 | ハイブリッド車輌の制御装置 |
JP4710096B2 (ja) | 2005-09-20 | 2011-06-29 | 株式会社村田製作所 | 積層型正特性サーミスタ |
-
2006
- 2006-09-20 JP JP2007536532A patent/JP4710096B2/ja active Active
- 2006-09-20 WO PCT/JP2006/318630 patent/WO2007034830A1/ja active Application Filing
- 2006-09-20 CN CN2006800340774A patent/CN101268527B/zh active Active
- 2006-09-20 EP EP06810326.6A patent/EP1939898B1/en active Active
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2008
- 2008-03-18 US US12/050,413 patent/US7679485B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04115502A (ja) * | 1990-09-05 | 1992-04-16 | Murata Mfg Co Ltd | 半導体磁器の製造方法 |
JPH06302403A (ja) * | 1993-04-16 | 1994-10-28 | Murata Mfg Co Ltd | 積層型半導体セラミック素子 |
JP2002043103A (ja) * | 2000-05-15 | 2002-02-08 | Murata Mfg Co Ltd | 積層型半導体セラミック素子およびその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
US20080204187A1 (en) | 2008-08-28 |
EP1939898A1 (en) | 2008-07-02 |
US7679485B2 (en) | 2010-03-16 |
EP1939898A4 (en) | 2015-04-08 |
WO2007034830A1 (ja) | 2007-03-29 |
JP4710096B2 (ja) | 2011-06-29 |
CN101268527A (zh) | 2008-09-17 |
EP1939898B1 (en) | 2018-04-25 |
CN101268527B (zh) | 2011-04-27 |
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