DE69401474D1 - Thermistor mit positivem Temperaturkoeffizienten und Herstellungsverfahren - Google Patents

Thermistor mit positivem Temperaturkoeffizienten und Herstellungsverfahren

Info

Publication number
DE69401474D1
DE69401474D1 DE69401474T DE69401474T DE69401474D1 DE 69401474 D1 DE69401474 D1 DE 69401474D1 DE 69401474 T DE69401474 T DE 69401474T DE 69401474 T DE69401474 T DE 69401474T DE 69401474 D1 DE69401474 D1 DE 69401474D1
Authority
DE
Germany
Prior art keywords
thermistor
manufacturing process
temperature coefficient
positive temperature
positive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69401474T
Other languages
English (en)
Other versions
DE69401474T2 (de
Inventor
Yasushi Goto
Eiichi Koga
Takuoki Hata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69401474D1 publication Critical patent/DE69401474D1/de
Application granted granted Critical
Publication of DE69401474T2 publication Critical patent/DE69401474T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46Shaped 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
    • C04B35/462Shaped 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
    • C04B35/465Shaped 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
    • C04B35/468Shaped 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
    • C04B35/4682Shaped 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
    • C04B35/4684Shaped 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
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46Shaped 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
    • C04B35/462Shaped 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
    • C04B35/472Shaped 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 lead titanates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605Treating the starting powders individually or as mixtures
    • C04B35/62685Treating the starting powders individually or as mixtures characterised by the order of addition of constituents or additives
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C7/00Non-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
    • H01C7/02Non-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
    • H01C7/022Non-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
    • H01C7/023Non-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
    • H01C7/025Perovskites, e.g. titanates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208Calcium oxide or oxide-forming salts thereof, e.g. lime
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3213Strontium oxides or oxide-forming salts thereof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3215Barium oxides or oxide-forming salts thereof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3225Yttrium oxide or oxide-forming salts thereof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3227Lanthanum oxide or oxide-forming salts thereof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3229Cerium oxides or oxide-forming salts thereof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232Titanium oxides or titanates, e.g. rutile or anatase
    • C04B2235/3234Titanates, not containing zirconia
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232Titanium oxides or titanates, e.g. rutile or anatase
    • C04B2235/3234Titanates, not containing zirconia
    • C04B2235/3236Alkaline earth titanates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3262Manganese oxides, manganates, rhenium oxides or oxide-forming salts thereof, e.g. MnO
    • C04B2235/3267MnO2
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3286Gallium oxides, gallates, indium oxides, indates, thallium oxides, thallates or oxide forming salts thereof, e.g. zinc gallate
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54Particle size related information
    • C04B2235/5418Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54Particle size related information
    • C04B2235/5418Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5445Particle size related information expressed by the size of the particles or aggregates thereof submicron sized, i.e. from 0,1 to 1 micron
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74Physical characteristics
    • C04B2235/77Density
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74Physical characteristics
    • C04B2235/79Non-stoichiometric products, e.g. perovskites (ABO3) with an A/B-ratio other than 1

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Inorganic Chemistry (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Thermistors And Varistors (AREA)
  • Compositions Of Oxide Ceramics (AREA)
DE69401474T 1993-09-06 1994-07-20 Thermistor mit positivem Temperaturkoeffizienten und Herstellungsverfahren Expired - Fee Related DE69401474T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP05221092A JP3141642B2 (ja) 1993-09-06 1993-09-06 正特性サーミスタの製造方法

Publications (2)

Publication Number Publication Date
DE69401474D1 true DE69401474D1 (de) 1997-02-27
DE69401474T2 DE69401474T2 (de) 1997-04-30

Family

ID=16761370

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69401474T Expired - Fee Related DE69401474T2 (de) 1993-09-06 1994-07-20 Thermistor mit positivem Temperaturkoeffizienten und Herstellungsverfahren

Country Status (6)

Country Link
US (1) US5815063A (de)
EP (1) EP0642140B1 (de)
JP (1) JP3141642B2 (de)
CN (1) CN1040708C (de)
DE (1) DE69401474T2 (de)
TW (1) TW270208B (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
BR9900253A (pt) 1999-02-02 2000-08-29 Companhia Brasileira Carbureto Recipiente de alumìnio e aço inoxidável a formação de eletrodos de autocozimento para a utilização em baixos-fornos elétricos de redução
BR9900252A (pt) 1999-02-02 2000-08-29 Companhia Brasileira Carbureto Recipiente de aço inoxidável para a formação de eletrodos de autocozimento para a utilização em baixos-fornos elétricos de redução
JP3506044B2 (ja) * 1999-04-28 2004-03-15 株式会社村田製作所 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
JP2002057003A (ja) 2000-08-10 2002-02-22 Nippon Soken Inc 耐還元性サーミスタ素子とその製造方法および温度センサ
JP2002124403A (ja) * 2000-08-10 2002-04-26 Nippon Soken Inc 耐還元性サーミスタ素子とその製造方法および温度センサ
AU2002223863A1 (en) * 2000-11-21 2002-06-03 Bdsb Holdings Limited A method of producing electrically resistive heating elements having self-regulating properties
JP3636075B2 (ja) * 2001-01-18 2005-04-06 株式会社村田製作所 積層ptcサーミスタ
EP1438731A1 (de) 2001-10-12 2004-07-21 Koninklijke Philips Electronics N.V. Kathodenstrahlröhre
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
JP3831363B2 (ja) * 2003-06-24 2006-10-11 Tdk株式会社 有機質正特性サーミスタ及びその製造方法並びにその酸素含有量の測定方法
WO2006035593A1 (ja) * 2004-09-27 2006-04-06 Toho Titanium Co., Ltd. チタン酸バリウム系半導体磁器組成物
CN101127265B (zh) * 2007-07-30 2011-04-20 韩城市华龙电子有限责任公司 负居里点正温度系数ptcr热敏电阻元件
US20090146042A1 (en) * 2007-12-05 2009-06-11 Jan Ihle Mold comprising a ptc-ceramic
US9034210B2 (en) 2007-12-05 2015-05-19 Epcos Ag Feedstock and method for preparing the feedstock
CN101429020B (zh) * 2008-11-26 2011-11-23 丹东国通电子元件有限公司 浪涌抑制器用正温度系数热敏电阻生产方法
EP2400605A1 (de) * 2009-04-23 2011-12-28 Panasonic Corporation Überspannungsschutzelement
CN102329131A (zh) * 2011-06-10 2012-01-25 溧阳杰敏电子有限公司 一种低频率效应的陶瓷型正温度系数热敏电阻
CN104311004B (zh) * 2014-10-20 2017-01-25 中国科学院上海硅酸盐研究所 Ptc陶瓷材料及提高ptc陶瓷材料居里点以下电阻温度稳定性的方法
CN108727055A (zh) * 2018-06-27 2018-11-02 佛山市南海蜂窝电子制品有限公司 一种ptc蜂窝陶瓷加热元件及其制备方法
CN112110727B (zh) * 2020-09-22 2022-03-11 中国科学院新疆理化技术研究所 一种氟化物掺杂的高温负温度系数热敏电阻材料及制备方法
CN115108827B (zh) * 2021-03-17 2023-07-04 华中科技大学 一种正温度系数热敏电阻及其制备方法
CN113265636A (zh) * 2021-05-27 2021-08-17 江苏新林芝电子科技股份有限公司 一种提高陶瓷ptc热敏元件的抗还原性的方法
CN114496432A (zh) * 2022-03-10 2022-05-13 江苏新林芝电子科技股份有限公司 一种提高ptc热敏元件抗还原性能的方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014822A (en) * 1968-08-13 1977-03-29 Murata Manufacturing Co., Ltd. Semiconductor ceramic composition
JPS5326677B2 (de) * 1973-09-24 1978-08-03
US3975307A (en) * 1974-10-09 1976-08-17 Matsushita Electric Industrial Co., Ltd. PTC thermistor composition and method of making the same
US4175060A (en) * 1977-11-25 1979-11-20 Bell Telephone Laboratories, Incorporated Composition and processing procedure for making thermistors
US4403236A (en) * 1979-10-09 1983-09-06 Murata Manufacturing Co., Ltd. Boundary layer type semiconducting ceramic capacitors with high capacitance
JPS57157502A (en) * 1981-03-24 1982-09-29 Murata Manufacturing Co Barium titanate series porcelain composition
JPS5853539A (ja) * 1981-09-23 1983-03-30 Nippon Denso Co Ltd 自動車用電気式温蔵庫
JPH0719645B2 (ja) * 1984-09-07 1995-03-06 日本電装株式会社 自己温度制御型発熱装置
AU572013B2 (en) * 1984-12-26 1988-04-28 Nippondenso Co. Ltd. Anti-reducing semi conducting porcelain with a positive temperature coefficient of resistance
US4766409A (en) * 1985-11-25 1988-08-23 Murata Manufacturing Co., Ltd. Thermistor having a positive temperature coefficient of resistance
US4952902A (en) * 1987-03-17 1990-08-28 Tdk Corporation Thermistor materials and elements
DE69009628T2 (de) * 1989-08-31 1994-10-13 Central Glass Co Ltd Pulverzusammensetzung zum Sintern in eine modifizierte Bariumtitanat halbleitende Keramik.
US5219811A (en) * 1989-08-31 1993-06-15 Central Glass Company, Limited Powder composition for sintering into modified barium titanate semiconductive ceramic
US5238911A (en) * 1990-04-04 1993-08-24 Hitachi Chemical Company Ltd. Oxide superconductor Bi--Sr--Ca--Mg--Ba--Cu--O
US5262370A (en) * 1992-04-07 1993-11-16 Trans-Tech, Inc. Dielectric ceramic compositions

Also Published As

Publication number Publication date
TW270208B (de) 1996-02-11
US5815063A (en) 1998-09-29
CN1040708C (zh) 1998-11-11
EP0642140A1 (de) 1995-03-08
DE69401474T2 (de) 1997-04-30
JPH0778703A (ja) 1995-03-20
JP3141642B2 (ja) 2001-03-05
EP0642140B1 (de) 1997-01-15
CN1113026A (zh) 1995-12-06

Similar Documents

Publication Publication Date Title
DE69401474D1 (de) Thermistor mit positivem Temperaturkoeffizienten und Herstellungsverfahren
DE68917259D1 (de) Heizvorrichtung mit positivem Temperaturkoeffizienten und Verfahren zur Herstellung davon.
DE69626615D1 (de) Thermistor mit positivem Temperaturkoeffizient
DE69426233T2 (de) Thermoelektrische materialien mit höherer leistung und herstellungsverfahren
DE68918539D1 (de) Heizgerät mit positivem Temperaturkoeffizienten.
DE69414728T2 (de) Filterorgan mit verteiltem Element und Herstellungsverfahren
DE69013996D1 (de) Elektrisches Heizgerät mit positivem Temperaturkoeffizienten.
DE69428709T2 (de) Sitz mit variabler temperatur
DE69406723D1 (de) Organopolysiloxan und Herstellungsverfahren
NO963059D0 (no) Termistor med positiv temperaturkoeffisient
DE69621498D1 (de) Zusammensetzung mit positivem Temperaturkoeffizienten
DE4391397T1 (de) Wärmeerzeuger in Form eines Thermistors mit positivem Temperaturkoeffizienten
DE69629858D1 (de) Elektronisches Thermometer mit hörbarem Temperaturanstieg
DE69311210D1 (de) yrucker mit Temperaturauswertung und Temperaturermittlung
KR890002642A (ko) 개량된 저항소자를 가진 열선식 공기유량계 및 그 제조방법
DE69325027T2 (de) Spannungsreferenz mit linearem negativem Temperaturkoeffizienten
EP0408342A3 (en) Thin high temperature heater and method for manufacturing the same
DE69633087D1 (de) Thermistor mit positivem Temperaturkoeffizient des Widerstandes
DE69427451D1 (de) Dämmender Schaumstoff mit niedriger Wärmeleitfähigkeit und Herstellungsverfahren
DE3876553D1 (de) Thermistor-anordnung mit positivem temperaturkoeffizienten.
DE69532040D1 (de) Temperatur-fühler-polymer und daraus hergestelltes temperatur-fühler-element
DE69736102D1 (de) Integrierter Halbleiterschaltkreis mit einem Thermistor zur Temperaturkompensation und dessen Herstellungsverfahren
DE69411047T2 (de) Halbleitende Keramikmaterialien mit negativem Temperaturkoeffizienten des Widerstands
DE59410109D1 (de) Rohrheizkörper mit Überlastsicherung und Temperaturfühler
DE69402093T2 (de) Elektrisches Heizgerät mit verringerter Dicke

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee