Inventor · Tianjin, CN

Kun Liu

26Patents
6h-index
65Co-inventors
72Inventor score

Filing activity: Jan 7, 1999 → Dec 10, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US6824931B2 Verification photomask Physics 63 Expired
US9871132B1 Extended drain metal-oxide-semiconductor transistor Electricity 24 Active
US6664177B1 Dielectric ARC scheme to improve photo window in dual damascene process Electricity 12 Expired
US6030732A In-situ etch process control monitor Physics 10 Expired
US9673084B2 Isolation scheme for high voltage device Electricity 8 Active
US6602642B2 Optical proximity correction verification mask Physics 7 Expired
US9322740B2 Distributed disturbance sensing device and the related demodulation method based on polarization sensitive optical frequency domain reflectometry Physics 6 Active
US7489982B2 Method and software for conducting efficient lithography WPH / lost time analysis in semiconductor manufacturing Physics 6 Active
US12078527B2 Differential COTDR distributed acoustic sensing device and method based on heterogeneous double-sideband chirped-pulses Emerging Cross-Sectional Technologies 2 Active
US6602641B1 Wafer's zero-layer and alignment mark print without mask when using scanner Physics 2 Expired
US7659965B2 High throughput wafer stage design for optical lithography exposure apparatus Physics 1 Active
US11205069B1 Hybrid cornea and pupil tracking Physics 1 Active
US10365088B2 Distributed measuring device and method for simultaneously measuring strain and temperature based on optical frequency domain reflection Physics 1 Active
US8934100B2 Multi-band multiplexing intra-cavity gas sensing system and method Physics 1 Active
US9074957B2 High stable fiber fabry-perot pressure sensor with glue-free packing and its fabrication method Physics 1 Active
US11473992B2 Residual pressure measurement system for Fabry-Perot cavity of optical MEMS pressure sensor and method thereof Physics 0 Active
US10365126B2 Distributed optical fiber disturbance positioning system based on the asymmetric dual Mach-Zehnder interference, and positioning method thereof Physics 0 Active
US11996441B2 Semiconductor device for high voltage applications Electricity 0 Active
US10508938B2 Fiber optical fabry-perot flow test device and test method with local bending diversion structure Physics 0 Active
US8951833B2 Defect free deep trench method for semiconductor chip Electricity 0 Active
US10057522B2 Image sensor and method and apparatus for removing sunspot of the same Electricity 0 Active
US11181400B2 Fiber Bragg Grating demodulation device capable of supressing fluctuations at variable ambient temperature and demodulation method thereof Physics 0 Active
US11654568B2 3D measurement model and spatial calibration method based on 1D displacement sensor Physics 0 Active
US11289896B2 System and method for autonomous monitoring and active defense of lightning Electricity 0 Active
US9847361B2 Pixel cell, image sensor, and manufacturing method Electricity 0 Active

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