Inventor · Boise, ID, US

Roger Lee

126Patents
32h-index
32Co-inventors
90Inventor score

Filing activity: Jul 24, 1991 → Jan 31, 2018

Most-cited inventions

PatentTitleAreaCited byStatus
US5260593A Semiconductor floating gate device having improved channel-floating gate interaction Electricity 107 Expired
US5424993A Programming method for the selective healing of over-erased cells on a flash erasable programmable read-only memory device Physics 107 Expired
US5168073A Method for fabricating storage node capacitor having tungsten and etched tin storage node capacitor plate Electricity 102 Expired
US6383861B1 Method of fabricating a dual gate dielectric Electricity 101 Expired
US5175120A Method of processing a semiconductor wafer to form an array of nonvolatile memory devices employing floating gate transistors and peripheral area having CMOS transistors Electricity 100 Expired
US5751039A Programmable non-volatile memory cell and method of forming a non-volatile memory cell Electricity 98 Expired
US5200652A Programmable/reprogrammable structure combining both antifuse and fuse elements Physics 93 Expired
US6358756B1 Self-aligned, magnetoresistive random-access memory (MRAM) structure utilizing a spacer containment scheme Electricity 90 Expired
US6137133A Programmable non-volatile memory cell and method of forming a non-volatile memory cell Electricity 89 Expired
US6498062B2 DRAM access transistor Electricity 87 Expired
US5257225A Method for programming programmable devices by utilizing single or multiple pulses varying in pulse width and amplitude Physics 86 Expired
US5229316A Semiconductor processing method for forming substrate isolation trenches Emerging Cross-Sectional Technologies 77 Expired
US5233206A Double digitlines for multiple programming of prom applications and other anti-fuse circuit element applications Electricity 74 Expired
US5282158A Transistor antifuse for a programmable ROM Electricity 63 Expired
US5159430A Vertically integrated oxygen-implanted polysilicon resistor Emerging Cross-Sectional Technologies 59 Expired
US5250459A Electrically programmable low resistive antifuse element Electricity 59 Expired
US6159818A Method of forming a container capacitor structure Emerging Cross-Sectional Technologies 57 Expired
US5192703A Method of making tungsten contact core stack capacitor Electricity 55 Expired
US5208177A Local field enhancement for better programmability of antifuse PROM Electricity 54 Expired
US5257222A Antifuse programming by transistor snap-back Physics 54 Expired
US5306951A Sidewall silicidation for improved reliability and conductivity Electricity 48 Expired
US5292681A Method of processing a semiconductor wafer to form an array of nonvolatile memory devices employing floating gate transistors and peripheral area having CMOS transistors Electricity 48 Expired
US7335543B2 MOS device for high voltage operation and method of manufacture Electricity 46 Expired
US5244826A Method of forming an array of finned memory cell capacitors on a semiconductor substrate Electricity 44 Expired
US5680350A Method for narrowing threshold voltage distribution in a block erased flash memory array Physics 44 Expired

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