Semiconductive ceramic composition
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United States of America Patent
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Jan 28, 1992
Grant Date -
N/A
app pub date -
Jul 13, 1989
filing date -
Jul 14, 1988
priority date (Note) -
Expired
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Abstract
A semiconductive ceramic composition capable of permitting its resistance-temperature characteristics and resistance to be controlled as desired and a firing temperature of the composition to be lowered to a degree sufficient to facilitate the mass-production at a low cost. The composition contains a main component consisting of SrO, PbO and TiO.sub.2 and is subjected to firing in an oxidizing atmosphere. The composition may contain at least one of SiO.sub.2 and M as a minor component. A variation in amount of the main and minor components permits characteristics and properties of the composition to be varied as desired.
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