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Primary Examiner: Clawson, Jr., Joseph E.
Assistant Examiner:
Attorney: Oblon, Fisher, Spivak, McClelland & Maier

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Title: Thyristor with gate and emitter shunts distributed over the cathode surface

Abstract: A thyristor having a gate and emitter shunts distributed over a cathode surface, wherein those emitter shunts provided in the vicinity of the gate are separated by shorter distances than those emitter shunts which are present on the remainder of the cathode surface. The distances are in each case determined by measuring the distance from the center of one emitter short-circuit to the center of an adjacent emitter short-circuit.


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Inventors: Jaecklin, Andre (Ennetbaden, CH)

Application Number: 838061
Filing Date: 1977-09-30
Publication_date: 1979-04-17
Assignee: BBC Brown, Boveri & Company, Limited (Baden, CH)
Primary Class(es): 257/163 257/175, 257/E29.038
Other Classes:
US Patent Ref:
3476992Nov, 1969Chu357/86.
3897286Jul, 1975De Cecco et al.357/38.

Other Refs: 1220894123906712721541434905
Jan, 1971GB
Jul, 1971GB
Apr, 1972GB
May, 1976GB
Other References: A. Jaecklin, "The First Dynamic Phase at Turn-On of a Thyristor," IEEE Trans. on Elec. Dev., vol. ed-23 #8, Aug. 1976, pp. 940-944.