1981-03-26
1983-11-22
Edlow, Martin H.
357 35, 357 68, H01L 2702
Patent
active
044172656
ABSTRACT:
A high current lateral transistor suitable for intergrated circuit construction is fabricated in the form of a plurality of parallel transistors. Each transistor has an emitter surrounded by a closely confronting collector with the intervening semiconductor acting as the base region. Groups of parallel connected transistors are located on both sides of and distributed along a centerline which contains a number of diffused crossunder resistor elements. Each group of transistors is flanked on both sides by a base contact that is extended perpendicularly away from the centerline and connected by metalization to a resistor element. The resistor elements act to distribute the transistor base currents in a ballasting operation that promotes proper current distribution. Since the resistors are under the oxide the emitter and collector metalization can pass across the centerline region and parallel connect the individual transistors.
REFERENCES:
patent: 3609460 (1971-09-01), Ollendorf
patent: 3879745 (1975-04-01), Thamaratnam
patent: 3896475 (1975-07-01), Bonis
patent: 4255672 (1981-03-01), Ohno
Congdon James S.
Murkland Judd R.
Edlow Martin H.
National Semiconductor Corporation
Pollock Michael J.
Winters Paul J.
Woodward Gail W.
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