Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1977-11-11
1980-04-29
Tupman, W. C.
Metal working
Method of mechanical manufacture
Assembling or joining
29580, 357 15, B01J 1700
Patent
active
041998600
ABSTRACT:
A dielectric-isolated PNP transistor with Schottky protection, either alone or as one of an integrated pair of complementary bipolar transistors has complete dielectric isolation from neighboring devices and from the substrate by means of a topside anisotropic etch. This leaves the devices in mesa form, thinner versions having the facility of lateral terminations, e.g. for the collector. The method is advantageously adapted to provide single type or complementary bipolars with integrated Schottky barrier protection.
REFERENCES:
patent: 3623925 (1971-11-01), Jenkins
patent: 3818583 (1974-06-01), Polata
patent: 4063271 (1977-12-01), Bean
Beelitz Howard R.
Preslar Donald R.
Norton Edward J.
RCA Corporation
Tupman W. C.
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