Inventor
SITTIG ROLAND
DE22 patents
⚠️ This page may combine multiple inventors who share the name “SITTIG ROLAND”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BBC BROWN BOVERI & CIE
14 patentsUS4377816AMar 22, 1983
Semiconductor element with zone guard rings
BBC BROWN BOVERI & CIE27 citations82
US4801554AJan 31, 1989
Process for manufacturing a power semiconductor component
BBC BROWN BOVERI & CIE8 citations73
US4642669AFeb 10, 1987
Semiconductor device having a blocking capability in only one direction
BBC BROWN BOVERI & CIE10 citations73
US4517582AMay 14, 1985
Asymmetrical thyristor with highly doped anode base layer region for optimized blocking and forward voltages
BBC BROWN BOVERI & CIE13 citations73
US4386283AMay 31, 1983
Process for the cutting-off of a thyristor
BBC BROWN BOVERI & CIE7 citations73
US4223332ASep 16, 1980
Thyristor having an anode transverse field emitter
BBC BROWN BOVERI & CIE11 citations73
US3987476AOct 19, 1976
Thyristor
BBC BROWN BOVERI & CIE8 citations73
US4177479ADec 4, 1979
Electrical circuit with a high-frequency thyristor fired by blocking leakage current
BBC BROWN BOVERI & CIE7 citations69
US4142201AFeb 27, 1979
Light-controlled thyristor with anode-base surface firing
BBC BROWN BOVERI & CIE9 citations69
US4596999AJun 24, 1986
Power semiconductor component and process for its manufacture
BBC BROWN BOVERI & CIE4 citations62
US4231054AOct 28, 1980
Thyristor with starting and generating cathode base contacts for use in rectifier circuits
BBC BROWN BOVERI & CIE4 citations54
US4298880ANov 3, 1981
Power thyristor and method of fabrication therefore utilizing control, generating, and firing gates
BBC BROWN BOVERI & CIE1 citations52
US4081821AMar 28, 1978
Bistable semiconductor component for high frequencies having four zones of alternating opposed types of conductivity
BBC BROWN BOVERI & CIE1 citations50
US4207584AJun 10, 1980
Safety device for protecting semiconductor components against excessive voltage rise rates
BBC BROWN BOVERI & CIE1 citations48
SIEMENS AG
3 patentsUS5977611ANov 2, 1999
Power diode and hybrid diode, voltage limiter and freewheeling diode having the power diode
SIEMENS AG19 citations92
US4803172AFeb 7, 1989
Method of manufacturing thyristor with integrated power supply for an associated circuit
SIEMENS AG0 citations52
US4736232AApr 5, 1988
Thyristor with integrated power supply for an associated circuit and method for manufacture thereof
SIEMENS AG0 citations52
INFINEON TECHNOLOGIES AG
2 patentsUS6410950B1Jun 25, 2002
Geometrically coupled field-controlled-injection diode, voltage limiter and freewheeling diode having the geometrically coupled field-controlled-injection diode
INFINEON TECHNOLOGIES AG15 citations83
US6525374B1Feb 25, 2003
Semiconductor component with a high breakdown voltage
INFINEON TECHNOLOGIES AG9 citations71