Inventor
SPAK MARK A
US14 patents
⚠️ This page may combine multiple inventors who share the name “SPAK MARK A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOECHST CELANESE CORP
7 patentsUS5019488AMay 28, 1991
Method of producing an image reversal negative photoresist having a photo-labile blocked imide
HOECHST CELANESE CORP34 citations91
US4931381AJun 5, 1990
Image reversal negative working O-quinone diazide and cross-linking compound containing photoresist process with thermal curing treatment
HOECHST CELANESE CORP27 citations91
US5399456AMar 21, 1995
Image reversal negative working photoresist containing O-quinone diazide and cross-linking compound
HOECHST CELANESE CORP19 citations81
US4885232ADec 5, 1989
High temperature post exposure baking treatment for positive photoresist compositions
HOECHST CELANESE CORP23 citations81
US4929536AMay 29, 1990
Image reversal negative working O-napthoquinone diazide and cross-linking compound containing photoresist process with thermal curing
HOECHST CELANESE CORP13 citations72
US5256522AOct 26, 1993
Image reversal negative working O-naphthoquinone diazide and cross-linking compound containing photoresist process with thermal curing
HOECHST CELANESE CORP7 citations61
US5217840AJun 8, 1993
Image reversal negative working o-quinone diazide and cross-linking compound containing photoresist process with thermal curing treatment and element produced therefrom
HOECHST CELANESE CORP5 citations61
RCA CORP
3 patentsUS4220706ASep 2, 1980
Etchant solution containing HF-HnO3 -H2 SO4 -H2 O2
RCA CORP82 citations95
US4297393AOct 27, 1981
Method of applying thin metal deposits to a substrate
RCA CORP32 citations87
US4174252ANov 13, 1979
Method of defining contact openings in insulating layers on semiconductor devices without the formation of undesirable pinholes
RCA CORP17 citations73
CLARIANT FINANCE BVI LTD
3 patentsUS6187506B1Feb 13, 2001
Antireflective coating for photoresist compositions
CLARIANT FINANCE BVI LTD38 citations90
US5922503AJul 13, 1999
Process for obtaining a lift-off imaging profile
CLARIANT FINANCE BVI LTD30 citations89
US6372414B1Apr 16, 2002
Lift-off process for patterning fine metal lines
CLARIANT FINANCE BVI LTD7 citations71