Inventor · San Diego, CA, US

Nan Chen

37Patents
7h-index
47Co-inventors
65Inventor score

Filing activity: Mar 28, 2003 → Oct 5, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US7859920B2 Advanced bit line tracking in high performance memory compilers Physics 56 Active
US7092307B2 Leakage current reduction for CMOS memory circuits Physics 22 Expired
US7719258B2 Method and apparatus for current measurement using hall sensors without iron cores Physics 21 Active
US7881137B2 Read assist for memory circuits with different precharge voltage levels for bit line pair Physics 19 Active
US8223567B2 Memory read stability using selective precharge Physics 11 Active
US9640247B2 Methods and apparatuses for generating random numbers based on bit cell settling time Physics 8 Active
US7872930B2 Testing a memory device having field effect transistors subject to threshold voltage shifts caused by bias temperature instability Physics 7 Active
US9816872B2 Low power low cost temperature sensor Physics 7 Active
US8183713B2 System and method of providing power using switching circuits Electricity 7 Active
US7884645B2 Voltage level shifting circuit and method Electricity 6 Active
US10242720B2 Dual sensing current latched sense amplifier Physics 4 Active
US9903892B2 Low power small area oscillator-based ADC Electricity 4 Active
US9858217B1 Within-die special oscillator for tracking SRAM memory performance with global process variation, voltage and temperature Emerging Cross-Sectional Technologies 3 Active
US9671438B2 High-current sensing scheme using drain-source voltage Physics 3 Active
US6950359B2 Memory bit line leakage repair Physics 3 Expired
US8000165B2 Self reset clock buffer in memory devices Electricity 3 Active
US9484892B1 Integrated circuit adaptive voltage scaling with de-aging Electricity 3 Active
US8289090B2 Amplitude control for oscillator Electricity 2 Active
US9024684B2 Area-efficient PLL with a low-noise low-power loop filter Electricity 2 Active
US9473149B1 Temperature-compensated signal generator for supply voltage monitoring Electricity 2 Active
US11145608B2 Detection of laser-based security attacks Emerging Cross-Sectional Technologies 1 Active
US8760953B2 Sense amplifier with selectively powered inverter Physics 1 Active
US8270239B2 Semiconductor memory device and methods of performing a stress test on the semiconductor memory device Physics 1 Active
US8208316B2 SRAM yield enhancement by read margin improvement Physics 1 Active
US10382034B2 Apparatus and method for sensing distributed load currents provided by power gating circuit Emerging Cross-Sectional Technologies 0 Active

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