Inventor

BIRKMANN ROLF

DE2 patents

Patents

2 patents

US4875750AOct 24, 1989

Optoelectronic coupling element and method for its manufacture

SIEMENS AG73 citations94

US4940855AJul 10, 1990

Hermetically tight glass-metal housing for semiconductor components and method for producing same

SIEMENS AG22 citations80