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US 5,352,924 AGranted
Bipolar layout for improved performance
AssigneeTexas Instruments Incorporated
InventorsShivaling Mahant-Shetti, David B. Scott
Life of this patent
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Abstract
A bipolar transistor is disclosed which substantially reduces prior art problems associated with current crowding by maximizing the active periphery of the transistor's emitter [10].
Claims3
A plurality of integrated circuit devices being arranged in a hexagonal close packed formation in a plane, wherein each said device is of circular symmetry and comprises:
- a base;
- a collector;
- a cylindrically shaped emitter, which during device operation, said base, emitter and collector operate collectively as a transistor;
- and
- a plurality of base contacts spaced apart from said emitter at substantially equal radii from the center of mass of said cylindrically shaped emitter.
2 more elements
Dependencies are inferred from the claim text.