Inventor · Plano, TX, US

Charvaka Duvvury

75Patents
21h-index
51Co-inventors
91Inventor score

Filing activity: Aug 2, 1984 → Oct 10, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US4855620A Output buffer with improved ESD protection Electricity 73 Expired
US4896243A Efficient ESD input protection scheme Electricity 56 Expired
US6064249A Lateral DMOS design for ESD protection Electricity 46 Expired
US5940258A Semiconductor ESD protection circuit Electricity 43 Expired
US5907462A Gate coupled SCR for ESD protection circuits Electricity 42 Expired
US6040968A EOS/ESD protection for high density integrated circuits Electricity 40 Expired
US6690066B1 Minimization and linearization of ESD parasitic capacitance in integrated circuits Electricity 36 Expired
US6125021A Semiconductor ESD protection circuit Electricity 34 Expired
US5343433A CMOS sense amplifier Physics 31 Expired
US5369041A Method for forming a silicon controlled rectifier Electricity 29 Expired
US6071768A Method of making an efficient NPN turn-on in a high voltage DENMOS transistor for ESD protection Electricity 29 Expired
US5127739A CMOS sense amplifier with bit line isolation Physics 29 Expired
US6858902B1 Efficient ESD protection with application for low capacitance I/O pads Electricity 29 Expired
US5502317A Silicon controlled rectifier and method for forming the same Electricity 29 Expired
US5903032A Power device integration for built-in ESD robustness Electricity 27 Expired
US5450267A ESD/EOS protection circuits for integrated circuits Electricity 26 Expired
US6624487B1 Drain-extended MOS ESD protection structure Electricity 26 Expired
US5404041A Source contact placement for efficient ESD/EOS protection in grounded substrate MOS integrated circuit Electricity 26 Expired
US6137338A Low resistance input protection circuit Electricity 25 Expired
US5982217A PNP driven NMOS ESD protection circuit Electricity 24 Expired
US5468667A Method of placing source contacts for efficient ESD/EOS protection in grounded substrate MOS integrated circuit Electricity 22 Expired
US5814865A Bimodal ESD protection for DRAM power supplies and SCRs for DRAMs and logic circuits Electricity 21 Expired
US5493133A PNP punchthrough-assisted protection device for special applications in CMOS technologies Electricity 21 Expired
US4627033A Sense amplifier with reduced instantaneous power Physics 20 Expired
US5796638A Methods, apparatus and computer program products for synthesizing integrated circuits with electrostatic discharge capability and connecting ground rules faults therein Electricity 20 Expired

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