Inventor
FERREIRA LAWRENCE
US16 patents
⚠️ This page may combine multiple inventors who share the name “FERREIRA LAWRENCE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ARCH SPEC CHEM INC
7 patentsUS6855476B2Feb 15, 2005
Photoacid generators for use in photoresist compositions
ARCH SPEC CHEM INC58 citations92
US6159653ADec 12, 2000
Production of acetal derivatized hydroxyl aromatic polymers and their use in radiation sensitive formulations
ARCH SPEC CHEM INC24 citations92
US6312870B1Nov 6, 2001
t-butyl cinnamate polymers and their use in photoresist compositions
ARCH SPEC CHEM INC29 citations86
US6380317B1Apr 30, 2002
Production of acetal derivatized hydroxyl aromatic polymers and their use in radiation sensitive formulations
ARCH SPEC CHEM INC5 citations73
US6309793B1Oct 30, 2001
Production of acetal derivatized hydroxyl aromatic polymers and their use in radiation sensitive formulations
ARCH SPEC CHEM INC9 citations73
US6140026AOct 31, 2000
Photosensitive diazonaphthoquinone esters based on selected cyclic alkyl ether-containing phenolics and their use in radiation sensitive mixtures
ARCH SPEC CHEM INC2 citations62
US6200480B1Mar 13, 2001
Method of purifying photoacid generators for use in photoresist compositions
ARCH SPEC CHEM INC1 citations52
OCG MICROELECTRONIC MATERIALS
5 patentsUS5602260AFeb 11, 1997
Selected O-quinonediazide sulfonic acid esters of phenolic compounds and their use in radiation-sensitive compositions
OCG MICROELECTRONIC MATERIALS19 citations92
US5547814AAug 20, 1996
O-quinonediazide sulfonic acid esters of phenolic compounds and their use in forming positive images
OCG MICROELECTRONIC MATERIALS22 citations92
US5541033AJul 30, 1996
Selected o-quinonediazide sulfonic acid esters of phenolic compounds and their use in radiation-sensitive compositions
OCG MICROELECTRONIC MATERIALS37 citations92
US5446125AAug 29, 1995
Method for removing metal impurities from resist components
OCG MICROELECTRONIC MATERIALS52 citations90
US5234789AAug 10, 1993
Polylactide compounds as sensitivity enhancers for radiation sensitive mixtures containing o-quinonediazide photoactive compounds
OCG MICROELECTRONIC MATERIALS9 citations63