Inventor · Sha Tin, CN

Wen Li

63Patents
19h-index
32Co-inventors
84Inventor score

Filing activity: Apr 15, 1996 → Oct 28, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US6044032A Addressing scheme for a double data rate SDRAM Physics 127 Expired
US6691214B1 DDR II write data capture calibration Physics 110 Expired
US7138823B2 Apparatus and method for independent control of on-die termination for output buffers of a memory device Electricity 79 Expired
US6446180B2 Memory device with synchronized output path Physics 71 Expired
US6154418A Write scheme for a double data rate SDRAM Physics 71 Expired
US6381194B2 OUTPUT CIRCUIT FOR A DOUBLE DATA RATE DYNAMIC RANDOM ACCESS MEMORY, DOUBLE DATA RATE DYNAMIC RANDOM ACCESS MEMORY, METHOD OF CLOCKING DATA OUT FROM A DOUBLE DATA RATE DYNAMIC RANDOM ACCESS MEMORY AND METHOD OF PROVIDING A DATA STROBE SIGNAL Physics 56 Expired
US6240042A Output circuit for a double data rate dynamic random access memory, double data rate dynamic random access memory, method of clocking data out from a double data rate dynamic random access memory and method of providing a data strobe signal Physics 48 Expired
US6763444B2 Read/write timing calibration of a memory array using a row or a redundant row Physics 48 Expired
US6438060B1 Method of reducing standby current during power down mode Physics 46 Expired
US6081477A Write scheme for a double data rate SDRAM Physics 41 Expired
US6704881B1 Method and apparatus for providing symmetrical output data for a double data rate DRAM Electricity 38 Expired
US7508384B2 Writing system Physics 35 Active
US5834813A Field-effect transistor for one-time programmable nonvolatile memory element Emerging Cross-Sectional Technologies 26 Expired
US5661428A Frequency adjustable, zero temperature coefficient referencing ring oscillator circuit Physics 23 Expired
US6809990B2 Delay locked loop control circuit Physics 23 Expired
US6836437B2 Method of reducing standby current during power down mode Physics 22 Expired
US7165185B2 DDR II write data capture calibration Physics 21 Expired
US6480429B2 Shared redundancy for memory having column addressing Physics 20 Expired
US6922367B2 Data strobe synchronization circuit and method for double data rate, multi-bit writes Physics 20 Expired
US6968026B1 Method and apparatus for output data synchronization with system clock in DDR Electricity 15 Expired
US6532180B2 Write data masking for higher speed DRAMs Physics 14 Expired
US5886940A Self-protected circuit for non-selected programmable elements during programming Physics 13 Expired
US6259621A Method and apparatus for minimization of data line coupling in a semiconductor memory device Physics 12 Expired
US7054222B2 Write address synchronization useful for a DDR prefetch SDRAM Physics 12 Expired
US6694416B1 Double data rate scheme for data output Physics 10 Expired

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