CA1140741A - Dielectriques en materiau ceramique, et methode de production connexe - Google Patents
Dielectriques en materiau ceramique, et methode de production connexeInfo
- Publication number
- CA1140741A CA1140741A CA000332432A CA332432A CA1140741A CA 1140741 A CA1140741 A CA 1140741A CA 000332432 A CA000332432 A CA 000332432A CA 332432 A CA332432 A CA 332432A CA 1140741 A CA1140741 A CA 1140741A
- Authority
- CA
- Canada
- Prior art keywords
- weight
- mixture
- ceramic dielectric
- ceramic
- powder
- 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
- 239000000919 ceramic Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 239000003989 dielectric material Substances 0.000 title description 3
- 239000010936 titanium Substances 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 6
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052788 barium Inorganic materials 0.000 claims abstract description 4
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 4
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 4
- 239000011575 calcium Substances 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 239000011133 lead Substances 0.000 claims abstract description 4
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 4
- 239000010955 niobium Substances 0.000 claims abstract description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 4
- 239000001301 oxygen Substances 0.000 claims abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 4
- 239000011574 phosphorus Substances 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 239000010703 silicon Substances 0.000 claims abstract description 4
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 4
- 239000011734 sodium Substances 0.000 claims abstract description 4
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000003985 ceramic capacitor Substances 0.000 claims abstract 3
- 239000000203 mixture Substances 0.000 claims description 65
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 40
- 239000000843 powder Substances 0.000 claims description 26
- 239000000377 silicon dioxide Substances 0.000 claims description 20
- 235000012239 silicon dioxide Nutrition 0.000 claims description 20
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 19
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 15
- 238000001354 calcination Methods 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 13
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(III) oxide Inorganic materials O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 claims description 12
- 238000005245 sintering Methods 0.000 claims description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 10
- 229910000018 strontium carbonate Inorganic materials 0.000 claims description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims description 8
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 claims description 8
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims description 8
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 claims description 7
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 6
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 claims description 5
- 235000017550 sodium carbonate Nutrition 0.000 claims description 5
- 235000010216 calcium carbonate Nutrition 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 4
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 claims description 4
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Chemical compound O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- LEDMRZGFZIAGGB-UHFFFAOYSA-L strontium carbonate Chemical compound [Sr+2].[O-]C([O-])=O LEDMRZGFZIAGGB-UHFFFAOYSA-L 0.000 claims description 4
- 239000002270 dispersing agent Substances 0.000 claims description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 3
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 3
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- 239000007772 electrode material Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000000306 component Substances 0.000 claims 10
- 229910052681 coesite Inorganic materials 0.000 claims 9
- 229910052906 cristobalite Inorganic materials 0.000 claims 9
- 229910052682 stishovite Inorganic materials 0.000 claims 9
- 229910052905 tridymite Inorganic materials 0.000 claims 9
- 238000010298 pulverizing process Methods 0.000 claims 4
- 239000006104 solid solution Substances 0.000 claims 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 3
- 229910052593 corundum Inorganic materials 0.000 claims 3
- 238000007493 shaping process Methods 0.000 claims 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims 3
- 229910019714 Nb2O3 Inorganic materials 0.000 claims 2
- 238000001556 precipitation Methods 0.000 claims 1
- 238000007652 sheet-forming process Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 claims 1
- 239000003990 capacitor Substances 0.000 abstract description 23
- 238000011068 loading method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 5
- 229910002113 barium titanate Inorganic materials 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 4
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 description 4
- 229910000416 bismuth oxide Inorganic materials 0.000 description 3
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 3
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000011802 pulverized particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910001936 tantalum oxide Inorganic materials 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 241000905957 Channa melasoma Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910002370 SrTiO3 Inorganic materials 0.000 description 1
- 241000950638 Symphysodon discus Species 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229940112669 cuprous oxide Drugs 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000484 niobium oxide Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- -1 strontiur~l Chemical compound 0.000 description 1
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
- H01G4/1209—Ceramic dielectrics characterised by the ceramic dielectric material
- H01G4/1218—Ceramic dielectrics characterised by the ceramic dielectric material based on titanium oxides or titanates
- H01G4/1227—Ceramic dielectrics characterised by the ceramic dielectric material based on titanium oxides or titanates based on alkaline earth titanates
-
- 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
- C04B35/47—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 strontium titanates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inorganic Insulating Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Ceramic Capacitors (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9115978A JPS5517965A (en) | 1978-07-25 | 1978-07-25 | Porcelain dielectric substance and method of fabricating same |
| JP91159/78 | 1978-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1140741A true CA1140741A (fr) | 1983-02-08 |
Family
ID=14018710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000332432A Expired CA1140741A (fr) | 1978-07-25 | 1979-07-24 | Dielectriques en materiau ceramique, et methode de production connexe |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5517965A (fr) |
| CA (1) | CA1140741A (fr) |
| DE (1) | DE2929764C2 (fr) |
| FR (1) | FR2433818B1 (fr) |
| GB (1) | GB2027008B (fr) |
| NL (1) | NL7905587A (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4347167A (en) * | 1980-10-01 | 1982-08-31 | University Of Illinois Foundation | Fine-grain semiconducting ceramic compositions |
| JPS59188103A (ja) * | 1983-04-08 | 1984-10-25 | 株式会社村田製作所 | 電圧非直線抵抗体用磁器組成物 |
| JPH0666219B2 (ja) * | 1989-02-22 | 1994-08-24 | 株式会社村田製作所 | 積層セラミックスコンデンサ |
| JP4591709B2 (ja) * | 2006-07-14 | 2010-12-01 | 信越化学工業株式会社 | キャパシタ |
| CN109293357A (zh) * | 2018-09-30 | 2019-02-01 | 陕西科技大学 | 一种具有奥里维里斯结构单相SrBi3Nb2FeO12多铁性陶瓷及其制备方法 |
| CN109704763B (zh) * | 2018-12-28 | 2021-06-15 | 有研工程技术研究院有限公司 | 一种低温烧结陶瓷介质材料的制备方法 |
| CN116768624B (zh) * | 2023-06-28 | 2024-05-03 | 上海工程技术大学 | 一种铌酸钠基无相变电介质陶瓷材料、其制备方法及其用途 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2836501A (en) * | 1955-11-04 | 1958-05-27 | Electric Machinery Mfg Co | Electrostrictive ceramic materials |
| GB861346A (en) * | 1957-11-29 | 1961-02-15 | Nat Res Dev | Dielectric ceramic compositions and the method of production thereof |
| US3299332A (en) * | 1961-07-10 | 1967-01-17 | Murata Manufacturing Co | Semiconductive capacitor and the method of manufacturing the same |
| NL135251C (fr) * | 1963-02-22 | |||
| US3268783A (en) * | 1965-10-05 | 1966-08-23 | Murata Manufacturing Co | Capacitor comprising an nu-type semiconductor metallic oxide and a layer of compensated material |
| DE1614605B2 (de) * | 1967-09-20 | 1974-06-27 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Kondensatordielektrikum mit inneren Sperrschichten und geringerer Temperaturabhängigkeit |
| US3933668A (en) * | 1973-07-16 | 1976-01-20 | Sony Corporation | Intergranular insulation type polycrystalline ceramic semiconductive composition |
| CA1095704A (fr) * | 1976-01-20 | 1981-02-17 | Gen Itakura | Ceramiques semiconductrices |
-
1978
- 1978-07-25 JP JP9115978A patent/JPS5517965A/ja active Granted
-
1979
- 1979-07-18 NL NL7905587A patent/NL7905587A/nl active Search and Examination
- 1979-07-23 DE DE19792929764 patent/DE2929764C2/de not_active Expired
- 1979-07-24 FR FR7919028A patent/FR2433818B1/fr not_active Expired
- 1979-07-24 CA CA000332432A patent/CA1140741A/fr not_active Expired
- 1979-07-24 GB GB7925661A patent/GB2027008B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS623569B2 (fr) | 1987-01-26 |
| GB2027008A (en) | 1980-02-13 |
| FR2433818A1 (fr) | 1980-03-14 |
| JPS5517965A (en) | 1980-02-07 |
| NL7905587A (nl) | 1980-01-29 |
| FR2433818B1 (fr) | 1982-05-28 |
| DE2929764A1 (de) | 1980-02-28 |
| DE2929764C2 (de) | 1984-02-02 |
| GB2027008B (en) | 1982-10-27 |
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