Inventor
DE GRAAFF HENDRIK C
NL3 patents
Patents
3 patentsUS4409606AOct 11, 1983
High breakdown voltage semiconductor device
PHILIPS CORP23 citations78
US4151006AApr 24, 1979
Method of manufacturing a semiconductor device
PHILIPS CORP18 citations71
US4697199ASep 29, 1987
Semiconductor protection device having a bipolar transistor and an auxiliary field effect transistor
PHILIPS CORP18 citations67