Coating processes – Electrical product produced – Condenser or capacitor
Patent
1980-09-25
1983-04-19
Lusignan, Michael R.
Coating processes
Electrical product produced
Condenser or capacitor
427 89, 4271263, 427215, 427217, 427242, 427252, 427251, 4272555, 264 61, H01G 410, H01G 412
Patent
active
043805590
ABSTRACT:
A method for producing boundary layer semiconductor ceramic capacitors comprises firing shaped bodies of a semiconductor ceramic material in a neutral or reducing atmosphere, heat-treating the resultant semiconductor ceramic bodies to insulatorize crystal grain boundaries of the semiconductor ceramics, and providing opposite electrodes on surfaces of the heat-treated semiconductor ceramic bodies and is characterized in that said heat-treating is carried out by heating the semiconductor ceramic bodies together with power of an insulatorizing agent with stirring in a neutral or oxidizing atmosphere at a temperature ranging from 950.degree. to 1300.degree. C. As a semiconductor ceramic material, there may be used semiconductor ceramics of a barium titanate system, or of a strontium titanate system, or a complex semiconductor ceramic mainly comprising barium titanate or calcium titanate and strontium titanate. This method enables one to produce boundary layer semiconductor ceramics as good quality with small standard deviation and high yield.
REFERENCES:
patent: 3442691 (1969-05-01), Pearson
patent: 3517644 (1970-06-01), Baer
patent: 3589935 (1971-06-01), Brill-Edwards
patent: 3824122 (1974-07-01), Cook
patent: 3958047 (1976-05-01), Baldi
patent: 4311729 (1982-01-01), Itakura et al.
Kohno Yoshiaki
Mandai Haruhumi
Nishimura Kunitaro
Yamaguchi Masami
Bueker Richard
Lusignan Michael R.
Murata Manufacturing Co. Ltd.
LandOfFree
Method for producing boundary layer semiconductor ceramic capaci does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for producing boundary layer semiconductor ceramic capaci, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing boundary layer semiconductor ceramic capaci will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-837145