GB1487600A - Varistors - Google Patents
VaristorsInfo
- Publication number
- GB1487600A GB1487600A GB48854/74A GB4885474A GB1487600A GB 1487600 A GB1487600 A GB 1487600A GB 48854/74 A GB48854/74 A GB 48854/74A GB 4885474 A GB4885474 A GB 4885474A GB 1487600 A GB1487600 A GB 1487600A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grain growth
- grain
- sintered
- growth inhibitor
- bismuth
- 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
Links
- 239000003966 growth inhibitor Substances 0.000 abstract 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 229910052797 bismuth Inorganic materials 0.000 abstract 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 abstract 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 2
- 229910044991 metal oxide Inorganic materials 0.000 abstract 2
- 150000004706 metal oxides Chemical class 0.000 abstract 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- 229910052787 antimony Inorganic materials 0.000 abstract 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 abstract 1
- 229910052796 boron Inorganic materials 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
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
- H01C7/10—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 voltage responsive, i.e. varistors
- H01C7/105—Varistor cores
- H01C7/108—Metal oxide
- H01C7/112—ZnO type
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Conductive Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/414,714 US3953371A (en) | 1973-11-12 | 1973-11-12 | Controlled grain size metal oxide varistor and process for making |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1487600A true GB1487600A (en) | 1977-10-05 |
Family
ID=23642641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB48854/74A Expired GB1487600A (en) | 1973-11-12 | 1974-11-12 | Varistors |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3953371A (enExample) |
| JP (1) | JPS6118321B2 (enExample) |
| CA (1) | CA1019465A (enExample) |
| DE (1) | DE2453065C2 (enExample) |
| FR (1) | FR2251085A1 (enExample) |
| GB (1) | GB1487600A (enExample) |
| NL (1) | NL184494C (enExample) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5837178A (en) * | 1990-03-16 | 1998-11-17 | Ecco Limited | Method of manufacturing varistor precursors |
| US5973588A (en) * | 1990-06-26 | 1999-10-26 | Ecco Limited | Multilayer varistor with pin receiving apertures |
| US6183685B1 (en) | 1990-06-26 | 2001-02-06 | Littlefuse Inc. | Varistor manufacturing method |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4094061A (en) * | 1975-11-12 | 1978-06-13 | Westinghouse Electric Corp. | Method of producing homogeneous sintered ZnO non-linear resistors |
| DD150415A3 (de) * | 1978-01-03 | 1981-09-02 | Guenter Weise | Spannungsabhaengiger widerstand |
| US4219518A (en) * | 1978-05-15 | 1980-08-26 | General Electric Company | Method of improving varistor upturn characteristics |
| DD137867A1 (de) * | 1978-07-20 | 1979-09-26 | Guenter Weise | Substrat fuer keramische halbleiterwiderstaende und herstellungsverfahren |
| JPS5823722B2 (ja) * | 1978-12-25 | 1983-05-17 | ティーディーケイ株式会社 | 電圧非直線性抵抗体磁器の製造法 |
| US4297250A (en) * | 1980-01-07 | 1981-10-27 | Westinghouse Electric Corp. | Method of producing homogeneous ZnO non-linear powder compositions |
| DE3619620A1 (de) * | 1986-06-11 | 1987-12-17 | Siemens Ag | Verfahren zur herstellung keramischen zinkoxid-varistormaterials und verwendung des nach diesem verfahren hergestellten materials |
| US5660878A (en) * | 1991-02-06 | 1997-08-26 | Commissariat A L'energie Atomique | Process for the reduction of breakdown risks of the insulant of high voltage cable and lines during their aging |
| JPH0685363B2 (ja) * | 1991-09-30 | 1994-10-26 | ソマール株式会社 | 高電圧用バリスタ及びその製造方法 |
| US5699035A (en) * | 1991-12-13 | 1997-12-16 | Symetrix Corporation | ZnO thin-film varistors and method of making the same |
| US5322642A (en) * | 1992-07-28 | 1994-06-21 | Ferraz | Method of manufacturing semiconductors from homogeneous metal oxide powder |
| US5629666A (en) * | 1994-05-23 | 1997-05-13 | Kabushiki Kaisha Toshiba | Power resistor, method of manufacturing the same, and power circuit breaker |
| JP4123957B2 (ja) * | 2003-02-10 | 2008-07-23 | 株式会社村田製作所 | 電圧依存性抵抗器 |
| US20070128822A1 (en) * | 2005-10-19 | 2007-06-07 | Littlefuse, Inc. | Varistor and production method |
| US20100189882A1 (en) * | 2006-09-19 | 2010-07-29 | Littelfuse Ireland Development Company Limited | Manufacture of varistors with a passivation layer |
| US20100157492A1 (en) * | 2008-12-23 | 2010-06-24 | General Electric Company | Electronic device and associated method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE946367C (de) * | 1940-02-03 | 1956-08-02 | Siemens Ag | Halbleiter in elektrischen Stromkreisen und Geraeten |
| DE1065065B (de) * | 1952-03-31 | 1959-09-10 | Csf | Spannungsabhaengiger Widerstand auf Siliziumcarbidbasis |
| DE936495C (de) * | 1953-07-23 | 1955-12-15 | Western Electric Co | Verfahren zur Herstellung von Varistoren aus Siliziumkarbid |
| DE1077761B (de) * | 1953-08-18 | 1960-03-17 | Siemens Ag | Spannungsabhaengiger Widerstand |
| DE1046153B (de) * | 1953-08-18 | 1958-12-11 | Siemens Ag | Verfahren zur Herstellung eines Verbundwiderstandes |
| DE1048986B (de) * | 1954-04-14 | 1959-01-22 | Siemens Ag | Verfahren zur Herstellung von aus koernigem Siliziumkarbid bestehenden Halbleiterwiderstaenden |
| CA831691A (en) * | 1967-10-09 | 1970-01-06 | Matsuoka Michio | Non-linear resistors of bulk type |
| GB1244745A (en) * | 1968-10-01 | 1971-09-02 | Matsushita Electric Industrial Co Ltd | Non-linear resistance material |
| US3652378A (en) * | 1970-02-19 | 1972-03-28 | Western Electric Co | Strengthening alumina substrates by incorporating grain growth inhibitor in surface and promoter in interior |
-
1973
- 1973-11-12 US US05/414,714 patent/US3953371A/en not_active Expired - Lifetime
-
1974
- 1974-11-07 NL NLAANVRAGE7414521,A patent/NL184494C/xx not_active IP Right Cessation
- 1974-11-08 DE DE2453065A patent/DE2453065C2/de not_active Expired
- 1974-11-12 GB GB48854/74A patent/GB1487600A/en not_active Expired
- 1974-11-12 JP JP49129607A patent/JPS6118321B2/ja not_active Expired
- 1974-11-12 CA CA213,469A patent/CA1019465A/en not_active Expired
- 1974-11-12 FR FR7437258A patent/FR2251085A1/fr not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5837178A (en) * | 1990-03-16 | 1998-11-17 | Ecco Limited | Method of manufacturing varistor precursors |
| US6334964B1 (en) | 1990-03-16 | 2002-01-01 | Littelfuse, Inc. | Varistor ink formulations |
| US6743381B2 (en) | 1990-03-16 | 2004-06-01 | Littlefuse, Inc. | Process for forming varistor ink composition |
| US5973588A (en) * | 1990-06-26 | 1999-10-26 | Ecco Limited | Multilayer varistor with pin receiving apertures |
| US6183685B1 (en) | 1990-06-26 | 2001-02-06 | Littlefuse Inc. | Varistor manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| NL184494C (nl) | 1989-08-01 |
| JPS6118321B2 (enExample) | 1986-05-12 |
| NL7414521A (nl) | 1975-05-14 |
| CA1019465A (en) | 1977-10-18 |
| US3953371A (en) | 1976-04-27 |
| FR2251085A1 (enExample) | 1975-06-06 |
| NL184494B (nl) | 1989-03-01 |
| DE2453065A1 (de) | 1975-05-15 |
| JPS5078891A (enExample) | 1975-06-26 |
| DE2453065C2 (de) | 1983-04-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |