Coating processes – Electrical product produced – Condenser or capacitor
Patent
1976-12-02
1978-10-31
Esposito, Michael F.
Coating processes
Electrical product produced
Condenser or capacitor
427 86, 427 93, 427 95, 427248J, 427255, 427259, 156653, 156657, 156662, 148187, B05D 512, H01L 2122
Patent
active
041235649
ABSTRACT:
A method of producing a semiconductor device comprises removing all of the masking films used for forming desired semiconductor regions in the substrate, newly forming a first insulation film and selectively forming a second insulation film on predetermined portions of the first insulation film by the use of a polycrystalline silicon film as the mask.
REFERENCES:
patent: 3632433 (1972-01-01), Tokuyama
patent: 3795557 (1974-03-01), Jacob
patent: 3837905 (1974-09-01), Hile
patent: 3887726 (1975-06-01), Bratter
patent: 3930067 (1975-12-01), Gorrissen
patent: 4016007 (1977-04-01), Wada
Ajima Takashi
Takaoki Kiyoshi
Yonezawa Toshio
Esposito Michael F.
Tokyo Shibaura Electric Co. Ltd.
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