Patent assignee · TW · COMPANY

Powerchip Technology Corporation

106Patents
106Active
106Granted
58Portfolio score

Filing activity: Jan 30, 2008 → Nov 19, 2018 · 15 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8599614B2 Programming method for NAND flash memory device to reduce electrons in channels Electricity 18 Active
US9653142B1 Volatile semicondcutor memory device, refresh control circuit and method thereof Physics 16 Active
US8441053B2 Vertical capacitor-less DRAM cell, DRAM array and operation of the same Physics 13 Active
US8081522B2 Page buffer circuit for electrically rewritable non-volatile semiconductor memory device and control method Physics 12 Active
US8470671B1 Method of manufacturing a 3-D vertical memory Electricity 12 Active
US8324682B2 Dynamic random access memory cell and array having vertical channel transistor Electricity 12 Active
US9842870B2 Integrated bio-sensor with nanocavity and fabrication method thereof Physics 11 Active
US9704579B1 Non-valatile semiconductor memory device and location based erasure methods Physics 10 Active
US9064580B2 Nonvolatile semiconductor memory device and write-in method thereof Physics 9 Active
US9704898B2 Integrated bio-sensor with nanocavity and fabrication method thereof Physics 9 Active
US8140184B2 Tank-locking device, system for managing liquid supply and method using the same Emerging Cross-Sectional Technologies 8 Active
US9293227B1 Semiconductor memory apparatus and semiconductor integrated circuit apparatus Physics 7 Active
US8822303B2 Method for manufacturing semiconductor device Electricity 6 Active
US9424934B2 Non-volatile semiconductor memory device and writing method thereof Physics 5 Active
US8421141B2 Non-volatile memory device and method of fabricating the same Electricity 5 Active
US8539800B2 Tank-locking device, system for managing liquid supply and method using the same Emerging Cross-Sectional Technologies 5 Active
US9419053B2 Resistive random access memory structure and method for operating resistive random access memory Physics 5 Active
US8738836B2 Non-volatile semiconductor memory device and write-in method thereof Physics 5 Active
US9305977B1 Resistive random access memory and method for manufacturing the same Electricity 5 Active
US8223541B2 Non-volatile semiconductor memory, and the method thereof Physics 4 Active
US8278952B2 Voltage adjusting circuits and voltage adjusting methods Physics 4 Active
US9230856B2 Method for manufacturing structure having air gap Electricity 4 Active
US9285821B2 Negative reference voltage generating circuit and negative reference voltage generating system using the same Physics 4 Active
US10048717B1 Voltage regulation device capable of stabilizing output voltage Physics 4 Active
US9245766B2 Memory circuit structure and semiconductor process for manufacturing the same Electricity 4 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.