Inventor · Fremont, CA, US

Ray-Lin Wan

49Patents
24h-index
38Co-inventors
77Inventor score

Filing activity: May 15, 1992 → Jul 27, 2000

Most-cited inventions

PatentTitleAreaCited byStatus
US5526307A Flash EPROM integrated circuit architecture Electricity 246 Expired
US5754469A Page mode floating gate memory device storing multiple bits per cell Physics 198 Expired
US5751637A Automatic programming algorithm for page mode flash memory with variable programming pulse height and pulse width Physics 182 Expired
US5805501A Flash memory device with multiple checkpoint erase suspend logic Physics 102 Expired
US5778440A Floating gate memory device and method for terminating a program load cycle upon detecting a predetermined address/data pattern Electricity 87 Expired
US5745410A Method and system for soft programming algorithm Physics 80 Expired
US5835414A Page mode program, program verify, read and erase verify for floating gate memory device with low current page buffer Physics 68 Expired
US5539688A Fast pre-programming circuit for floating gate memory Physics 65 Expired
US5691945A Technique for reconfiguring a high density memory Physics 64 Expired
US5615153A Fast flash EPROM programming and pre-programming circuit design Physics 64 Expired
US5563823A Fast FLASH EPROM programming and pre-programming circuit design Physics 56 Expired
US6219290A Memory cell sense amplifier Physics 55 Expired
US5963476A Fowler-Nordheim (F-N) tunneling for pre-programming in a floating gate memory device Electricity 52 Expired
US6496417B1 Method and integrated circuit for bit line soft programming (BLISP) Physics 49 Expired
US5414664A Flash EPROM with block erase flags for over-erase protection Physics 48 Expired
US5748535A Advanced program verify for page mode flash memory Physics 41 Expired
US5596530A Flash EPROM with block erase flags for over-erase protection Physics 39 Expired
US5627838A Automatic test circuitry with non-volatile status write Physics 31 Expired
US5280203A Look-ahead asynchronous register set/reset in programmable logic device Electricity 31 Expired
US6147910A Parallel read and verify for floating gate memory device Physics 28 Expired
US6100557A Triple well charge pump Electricity 27 Expired
US5699298A Flash memory erase with controlled band-to-band tunneling current Physics 27 Expired
US5818848A Automatic test circuitry with non-volatile status write Physics 26 Expired
US5818764A Block-level wordline enablement to reduce negative wordline stress Physics 26 Expired
US6178132A Non-volatile integrated circuit having read while write capability using one address register Physics 23 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.