| (19) |
 |
|
(11) |
EP 0 723 276 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
18.06.1997 Bulletin 1997/25 |
| (43) |
Date of publication A2: |
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24.07.1996 Bulletin 1996/30 |
| (22) |
Date of filing: 18.01.1996 |
|
| (51) |
International Patent Classification (IPC)6: H01C 7/04 |
|
| (84) |
Designated Contracting States: |
|
DE FR GB IT NL |
| (30) |
Priority: |
18.01.1995 JP 5870/95
|
| (71) |
Applicant: MURATA MANUFACTURING CO., LTD. |
|
Nagaokakyo-shi
Kyoto-fu 226 (JP) |
|
| (72) |
Inventors: |
|
- Mihara, Kenjiro,
c/o Murata Manufact. Co., Ltd.
Nagaokakyo-shi,
Kyoto-fu (JP)
- Niimi, Hideaki,
c/o Murata Manufact. Co., Ltd.
Nagaokakyo-shi,
Kyoto-fu (JP)
- Ishikawa, Terunobu,
c/o Murata Manufact. Co., Ltd.
Nagaokakyo-shi,
Kyoto-fu (JP)
|
| (74) |
Representative: Laufhütte, Dieter, Dr.-Ing. et al |
|
Lorenz-Seidler-Gossel
Widenmayerstrasse 23
80538 München
80538 München (DE) |
|
| |
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| (54) |
Semiconductor ceramic having negative resistance/temperature characteristics and semiconductor
ceramic component utilizing the same |
(57) There is provided a semiconductor ceramic having negative resistance/temperature
characteristics constituted by a YCaMn type oxide ceramic expressed by the formula
Y
1-xCa
xMnO
3 (x = 0.2 to 0.6). Further, there is provided a semiconductor ceramic component including
a ceramic body having negative resistance/temperature characteristics and electrodes
formed on the ceramic body. The ceramic body is made of a YCaMn type oxide ceramic
expressed by the formula Y
1-xCa
xMnO
3 (x = 0.2 to 0.6).