Inventor
AHNE HELLMUT
DE61 patents
⚠️ This page may combine multiple inventors who share the name “AHNE HELLMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SIEMENS AG
49 patentsUS5234793AAug 10, 1993
Method for dimensionally accurate structure transfer in bilayer technique wherein a treating step with a bulging agent is employed after development
SIEMENS AG144 citations98
US4339521AJul 13, 1982
Heat resistant positive resists containing polyoxazoles
SIEMENS AG121 citations97
US5376499ADec 27, 1994
Highly heat-resistant positive resists comprising end-capped hydroxypolyamides
SIEMENS AG61 citations96
US5250375AOct 5, 1993
Photostructuring process
SIEMENS AG66 citations96
US5173393ADec 22, 1992
Etch-resistant deep ultraviolet resist process having an aromatic treating step after development
SIEMENS AG94 citations96
US4849051AJul 18, 1989
Heat resistant positive resists and method for preparing heat-resistant relief structures
SIEMENS AG50 citations96
US4395482AJul 26, 1983
Method for the preparation of heat-resistant relief structures using positive resists
SIEMENS AG86 citations96
US5234794AAug 10, 1993
Photostructuring method
SIEMENS AG50 citations93
US4622285ANov 11, 1986
Method for manufacturing polyoxazole and polythiazole precursors
SIEMENS AG47 citations93
US5556812ASep 17, 1996
Connection and build-up technique for multichip modules
SIEMENS AG40 citations92
US5081000AJan 14, 1992
Photosensitive mixture
SIEMENS AG31 citations92
US4965134AOct 23, 1990
Method for manufacturing highly heat-resistant dielectrics
SIEMENS AG23 citations92
US4371685AFeb 1, 1983
Radiation-reactive precursor stages of highly heat-resistant polymers
SIEMENS AG33 citations92
US5973202AOct 26, 1999
Preparation of poly-o-hydroxyamides and poly o-mercaptoamides
SIEMENS AG24 citations90
US5922825AJul 13, 1999
Preparation of poly-o-hydroxyamides and poly o-mercaptoamides
SIEMENS AG18 citations84
US4329556AMay 11, 1982
N-Azidosulfonylaryl-maleinimides
SIEMENS AG25 citations82
US4311785AJan 19, 1982
Method for the preparation of highly heat-resistant relief structures and the use thereof
SIEMENS AG27 citations82
US4287294ASep 1, 1981
Method for the preparation of relief structures by phototechniques
SIEMENS AG24 citations82
US5883221AMar 16, 1999
Synthesis of polybenzoxasole and polybenzothiazole precursors
SIEMENS AG18 citations81
US4883730ANov 28, 1989
Method for manufacturing heat-stable structured layers based on expoxy resin
SIEMENS AG23 citations81
US5783654AJul 21, 1998
Preparation of poly-O-hydroxyamides and poly O-mercaptoamides
SIEMENS AG10 citations74
US5726279AMar 10, 1998
Preparation of poly-o-hydroxyamides and poly o-mercaptoamides
SIEMENS AG9 citations74
US4801681AJan 31, 1989
Method for the manufacture of polyimidazole and polyimidazo-pyrrolone precursors from tetra carboxylic acid moiety reactant
SIEMENS AG7 citations74
US4656244AApr 7, 1987
Method for the manufacture of polyimidazole and polyimidazopyrrolone precursors
SIEMENS AG11 citations74
US4654415AMar 31, 1987
Method for the preparation of polyimide and polyisoindoloquinazoline dione precursors
SIEMENS AG18 citations74
US4619500AOct 28, 1986
Method for producing orientation layers for liquid crystal displays and liquid crystal displays having orientation layers
SIEMENS AG14 citations74
US4610947ASep 9, 1986
Method and manufacturing polyimidazole and polyimidazopyrrolone relief structures
SIEMENS AG7 citations74
US4598038AJul 1, 1986
Preparation of polyimide and polyisoindoloquinazoline dione relief structures
SIEMENS AG9 citations74
US4590103AMay 20, 1986
Method for the preparation of thin polyimide film
SIEMENS AG17 citations74
US4514043AApr 30, 1985
Method for the preparation of orientation layers for liquid crystal displays and liquid crystal displays having orientation layers
SIEMENS AG7 citations74
US4397999AAug 9, 1983
Polyimidazole and polyimidazopyrrolone precursor stages and the preparation thereof
SIEMENS AG10 citations74
US4385165AMay 24, 1983
Polyimide, polyisoindoloquinazoline dione, polyoxazine dione and polyquinazoline dione precursor stages and the manufacture
SIEMENS AG17 citations74
US4366230ADec 28, 1982
Method for the preparation of highly heat-resistant relief structures and the use thereof
SIEMENS AG8 citations74
US4332883AJun 1, 1982
Method for the manufacture of highly heat-resistant relief structures
SIEMENS AG9 citations74
US4292398ASep 29, 1981
Method for the preparation of relief structures by phototechniques
SIEMENS AG7 citations74
US5703186ADec 30, 1997
Mixed polymers
SIEMENS AG5 citations73
US5384220AJan 24, 1995
Production of photolithographic structures
SIEMENS AG16 citations73
US5262283ANov 16, 1993
Method for producing a resist structure
SIEMENS AG11 citations73
US5229258AJul 20, 1993
Method for producing a resist structure
SIEMENS AG11 citations73
US5040090AAug 13, 1991
Capacitive moisture-sensor
SIEMENS AG11 citations73
US4975347ADec 4, 1990
Method for manufacturing heat-stable structured layers from photopolymers which are addition reaction products of olefinic unsaturated monoisocyanates and phenol-formaldehyde resins
SIEMENS AG15 citations73
US4828948AMay 9, 1989
Method for the production of heat-resistant structured layers
SIEMENS AG10 citations73
US4732951AMar 22, 1988
Polyether-based photopolymers
SIEMENS AG6 citations73
US5760162AJun 2, 1998
Preparation of poly-o-hydroxyamides and poly-o-mercaptoamides
SIEMENS AG9 citations71
US5275920AJan 4, 1994
Method of dry development utilizing quinone diazide and basic polymer resist with latent image intensification through treatment with silicon-organic compound in water
SIEMENS AG6 citations63
US5104773AApr 14, 1992
Preparing highly thermoresistant relief structures
SIEMENS AG4 citations63
US4398009AAug 9, 1983
Polyoxazole precursor and the preparation thereof
SIEMENS AG6 citations63
US4332882AJun 1, 1982
Method for the preparation of highly heat-resistant relief
SIEMENS AG6 citations63
US5777066AJul 7, 1998
Method for the production of poly-o-hydroxyamides
SIEMENS AG4 citations62
SIEMENS AKTINEGESELLSCHAFT
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