Inventor
SCHWENKER ROBERT O
US17 patents
⚠️ This page may combine multiple inventors who share the name “SCHWENKER ROBERT O”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
16 patentsUS5271802ADec 21, 1993
Method for making a thin film magnetic head having a protective coating
IBM54 citations96
US5175658ADec 29, 1992
Thin film magnetic head having a protective coating and method for making same
IBM70 citations96
US4211582AJul 8, 1980
Process for making large area isolation trenches utilizing a two-step selective etching technique
IBM109 citations96
US4111720ASep 5, 1978
Method for forming a non-epitaxial bipolar integrated circuit
IBM116 citations94
US4392149AJul 5, 1983
Bipolar transistor
IBM41 citations92
US4338138AJul 6, 1982
Process for fabricating a bipolar transistor
IBM53 citations92
US4333227AJun 8, 1982
Process for fabricating a self-aligned micrometer bipolar transistor device
IBM43 citations92
US4309812AJan 12, 1982
Process for fabricating improved bipolar transistor utilizing selective etching
IBM33 citations92
US5268806ADec 7, 1993
Magnetoresistive transducer having tantalum lead conductors
IBM42 citations90
US4378630AApr 5, 1983
Process for fabricating a high performance PNP and NPN structure
IBM40 citations89
US4339767AJul 13, 1982
High performance PNP and NPN transistor structure
IBM39 citations89
US4542579ASep 24, 1985
Method for forming aluminum oxide dielectric isolation in integrated circuits
IBM8 citations73
US4303933ADec 1, 1981
Self-aligned micrometer bipolar transistor device and process
IBM15 citations73
US5198090AMar 30, 1993
Sputtering apparatus for producing thin films of material
IBM11 citations71
US4180439ADec 25, 1979
Anodic etching method for the detection of electrically active defects in silicon
IBM15 citations71
US3982967ASep 28, 1976
Method of proton-enhanced diffusion for simultaneously forming integrated circuit regions of varying depths
IBM13 citations69