US3735321A - Thermistor - Google Patents
Thermistor Download PDFInfo
- Publication number
- US3735321A US3735321A US00154271A US3735321DA US3735321A US 3735321 A US3735321 A US 3735321A US 00154271 A US00154271 A US 00154271A US 3735321D A US3735321D A US 3735321DA US 3735321 A US3735321 A US 3735321A
- Authority
- US
- United States
- Prior art keywords
- thermistor
- doped
- powder
- mass
- sintering
- 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 - Lifetime
Links
- 239000010432 diamond Substances 0.000 claims abstract description 23
- 238000005245 sintering Methods 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 14
- 229910052582 BN Inorganic materials 0.000 claims abstract description 13
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 13
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 229910003460 diamond Inorganic materials 0.000 claims description 19
- 239000000843 powder Substances 0.000 claims description 19
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 239000011733 molybdenum Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000010587 phase diagram Methods 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 abstract description 10
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052796 boron Inorganic materials 0.000 abstract description 4
- 229910052790 beryllium Inorganic materials 0.000 abstract description 3
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000010419 fine particle Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 15
- 239000002019 doping agent Substances 0.000 description 8
- 239000003082 abrasive agent Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 238000005056 compaction Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000012190 activator Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910052580 B4C Inorganic materials 0.000 description 1
- 239000012448 Lithium borohydride Substances 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- QDWJUBJKEHXSMT-UHFFFAOYSA-N boranylidynenickel Chemical compound [Ni]#B QDWJUBJKEHXSMT-UHFFFAOYSA-N 0.000 description 1
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 229910052903 pyrophyllite Inorganic materials 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 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
- H01C7/04—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 negative temperature coefficient
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49082—Resistor making
- Y10T29/49085—Thermally variable
Definitions
- U.S. Pat. No. 3,435,398 discloses the doping of cubic boron nitride with beryllium, sulfur, selenium, boron, silicon, germanium, etc., and the use of a single crystal thereof in a thermistor device.
- Both boron nitride abrasive, hereinafter referred to as CBN, and diamond must be formed under conditions of very high temperature and pressure.
- Silicon carbide on the other hand, can be formed at atmospheric pressure under high temperature conditions. Thus, in order to add dopant to silicon carbide it is only necessary to have the dopant material, which may be a boron compound, present in the melt.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
- Ceramic Products (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15427171A | 1971-06-18 | 1971-06-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3735321A true US3735321A (en) | 1973-05-22 |
Family
ID=22550694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00154271A Expired - Lifetime US3735321A (en) | 1971-06-18 | 1971-06-18 | Thermistor |
Country Status (8)
Country | Link |
---|---|
US (1) | US3735321A (fr) |
JP (1) | JPS5414317B1 (fr) |
BE (1) | BE784524A (fr) |
CH (1) | CH539324A (fr) |
DE (1) | DE2228941A1 (fr) |
FR (1) | FR2142017B1 (fr) |
GB (1) | GB1394394A (fr) |
SE (1) | SE379114B (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4467309A (en) * | 1981-04-30 | 1984-08-21 | Hitachi, Ltd. | High temperature thermistor |
US4712085A (en) * | 1984-10-30 | 1987-12-08 | Tdk Corporation | Thermistor element and method of manufacturing the same |
US4806900A (en) * | 1986-09-26 | 1989-02-21 | Naoji Fujimori | Thermistor and method for producing the same |
US5081438A (en) * | 1989-04-11 | 1992-01-14 | Sumitomo Electric Industries, Ltd. | Thermistor and its preparation |
US5512873A (en) * | 1993-05-04 | 1996-04-30 | Saito; Kimitsugu | Highly-oriented diamond film thermistor |
US20040172885A1 (en) * | 2002-02-26 | 2004-09-09 | Stewart Middlemiss | Semiconductive polycrystalline diamond, cutting elements incorporating the same and bit bodies incorporating such cutting elements |
US20130049159A1 (en) * | 2011-08-31 | 2013-02-28 | Infineon Technologies Ag | Semiconductor device with an amorphous semi-insulating layer, temperature sensor, and method of manufacturing a semiconductor device |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL181156C (nl) * | 1975-09-25 | 1987-06-16 | Gen Electric | Werkwijze voor de vervaardiging van een metaaloxide varistor. |
US4633051A (en) * | 1983-11-23 | 1986-12-30 | Advanced Semiconductor Materials America, Inc. | Stable conductive elements for direct exposure to reactive environments |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2609470A (en) * | 1949-07-22 | 1952-09-02 | Gen Electric | Resistance materials and elements |
US3435399A (en) * | 1966-04-19 | 1969-03-25 | Gen Electric | Thermistor device and method of producing said device |
US3435398A (en) * | 1966-04-19 | 1969-03-25 | Gen Electric | Thermistor device and method of producing said device |
US3503902A (en) * | 1966-09-14 | 1970-03-31 | Hitachi Ltd | Method for producing temperature sensitive resistor comprising vanadium oxide |
-
1971
- 1971-06-18 US US00154271A patent/US3735321A/en not_active Expired - Lifetime
-
1972
- 1972-06-02 GB GB2589872A patent/GB1394394A/en not_active Expired
- 1972-06-07 BE BE784524A patent/BE784524A/fr unknown
- 1972-06-09 CH CH862672A patent/CH539324A/de not_active IP Right Cessation
- 1972-06-14 DE DE19722228941 patent/DE2228941A1/de not_active Withdrawn
- 1972-06-16 JP JP5962272A patent/JPS5414317B1/ja active Pending
- 1972-06-16 SE SE7208008A patent/SE379114B/xx unknown
- 1972-06-16 FR FR7221798A patent/FR2142017B1/fr not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2609470A (en) * | 1949-07-22 | 1952-09-02 | Gen Electric | Resistance materials and elements |
US3435399A (en) * | 1966-04-19 | 1969-03-25 | Gen Electric | Thermistor device and method of producing said device |
US3435398A (en) * | 1966-04-19 | 1969-03-25 | Gen Electric | Thermistor device and method of producing said device |
US3503902A (en) * | 1966-09-14 | 1970-03-31 | Hitachi Ltd | Method for producing temperature sensitive resistor comprising vanadium oxide |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4467309A (en) * | 1981-04-30 | 1984-08-21 | Hitachi, Ltd. | High temperature thermistor |
US4712085A (en) * | 1984-10-30 | 1987-12-08 | Tdk Corporation | Thermistor element and method of manufacturing the same |
US4806900A (en) * | 1986-09-26 | 1989-02-21 | Naoji Fujimori | Thermistor and method for producing the same |
US5081438A (en) * | 1989-04-11 | 1992-01-14 | Sumitomo Electric Industries, Ltd. | Thermistor and its preparation |
US5512873A (en) * | 1993-05-04 | 1996-04-30 | Saito; Kimitsugu | Highly-oriented diamond film thermistor |
US20040172885A1 (en) * | 2002-02-26 | 2004-09-09 | Stewart Middlemiss | Semiconductive polycrystalline diamond, cutting elements incorporating the same and bit bodies incorporating such cutting elements |
US20130049159A1 (en) * | 2011-08-31 | 2013-02-28 | Infineon Technologies Ag | Semiconductor device with an amorphous semi-insulating layer, temperature sensor, and method of manufacturing a semiconductor device |
US8710615B2 (en) * | 2011-08-31 | 2014-04-29 | Infineon Technologies Ag | Semiconductor device with an amorphous semi-insulating layer, temperature sensor, and method of manufacturing a semiconductor device |
Also Published As
Publication number | Publication date |
---|---|
CH539324A (de) | 1973-07-15 |
FR2142017A1 (fr) | 1973-01-26 |
JPS5414317B1 (fr) | 1979-06-06 |
SE379114B (fr) | 1975-09-22 |
GB1394394A (en) | 1975-05-14 |
BE784524A (fr) | 1972-10-02 |
FR2142017B1 (fr) | 1977-12-23 |
DE2228941A1 (de) | 1972-12-21 |
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