Inventor
HOFFARTH JOSEPH G
US10 patents
Patents
10 patentsUS5191174AMar 2, 1993
High density circuit board and method of making same
IBM332 citations98
US4868350ASep 19, 1989
High performance circuit boards
IBM36 citations91
US4797178AJan 10, 1989
Plasma etch enhancement with large mass inert gas
IBM26 citations89
US4599134AJul 8, 1986
Plasma etching with tracer
IBM23 citations81
US4718972AJan 12, 1988
Method of removing seed particles from circuit board substrate surface
IBM21 citations78
US5114518AMay 19, 1992
Method of making multilayer circuit boards having conformal Insulating layers
IBM8 citations72
US4735820AApr 5, 1988
Removal of residual catalyst from a dielectric substrate
IBM10 citations72
US4810326AMar 7, 1989
Interlaminate adhesion between polymeric materials and electrolytic copper surfaces
IBM18 citations71
US5053104AOct 1, 1991
Method of plasma etching a substrate with a gaseous organohalide compound
IBM6 citations60
US4918574AApr 17, 1990
Multilayer circuit board with reduced susceptability to shorts caused by trapped impurities
IBM0 citations51