Inventor
CHAPPELL BARBARA A
US25 patents
⚠️ This page may combine multiple inventors who share the name “CHAPPELL BARBARA A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
19 patentsUS4845677AJul 4, 1989
Pipelined memory chip structure having improved cycle time
IBM135 citations98
US5541427AJul 30, 1996
SRAM cell with capacitor
IBM87 citations95
US5204841AApr 20, 1993
Virtual multi-port RAM
IBM98 citations95
US5542067AJul 30, 1996
Virtual multi-port RAM employing multiple accesses during single machine cycle
IBM36 citations92
US4843261AJun 27, 1989
Complementary output, high-density CMOS decoder/driver circuit for semiconductor memories
IBM29 citations92
US4583197AApr 15, 1986
Multi-stage pass transistor shifter/rotator
IBM34 citations89
US4618784AOct 21, 1986
High-performance, high-density CMOS decoder/driver circuit
IBM21 citations82
US5471188ANov 28, 1995
Fast comparator circuit
IBM7 citations74
US5089726AFeb 18, 1992
Fast cycle time clocked amplifier
IBM7 citations74
US5015881AMay 14, 1991
High speed decoding circuit with improved AND gate
IBM19 citations74
US4998028AMar 5, 1991
High speed CMOS logic device for providing ECL compatible logic levels
IBM9 citations74
US4835419AMay 30, 1989
Source-follower emitter-coupled-logic receiver circuit
IBM9 citations74
US4719372AJan 12, 1988
Multiplying interface circuit for level shifting between FET and TTL levels
IBM9 citations74
US4550489ANov 5, 1985
Heterojunction semiconductor
IBM9 citations74
US4491748AJan 1, 1985
High performance FET driver circuit
IBM13 citations74
US4460910AJul 17, 1984
Heterojunction semiconductor
IBM15 citations74
US5633820AMay 27, 1997
Self-resetting CMOS parallel adder with a bubble pipelined architecture, tri-rail merging logic, and enhanced testability
IBM7 citations72
US4845669AJul 4, 1989
Transporsable memory architecture
IBM19 citations71
US4697108ASep 29, 1987
Complementary input circuit with nonlinear front end and partially coupled latch
IBM6 citations63
INTEL CORP
4 patentsUS6556471B2Apr 29, 2003
VDD modulated SRAM for highly scaled, high performance cache
INTEL CORP63 citations96
US5942917AAug 24, 1999
High speed ratioed CMOS logic structures for a pulsed input environment
INTEL CORP52 citations92
US11271010B2Mar 8, 2022
Multi version library cell handling and integrated circuit structures fabricated therefrom
INTEL CORP2 citations72
US12067338B2Aug 20, 2024
Multi version library cell handling and integrated circuit structures fabricated therefrom
INTEL CORP0 citations61