Inventor

Alan S. Chen

28Patents
6h-index
57Co-inventors
72Inventor score

Filing activity: Jun 9, 1997 → Feb 21, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US8294331B2 Acoustic wave guide device and method for minimizing trimming effects and piston mode instabilities Emerging Cross-Sectional Technologies 27 Active
US7345364B2 Structure and method for improved heat conduction for semiconductor devices Electricity 21 Expired
US6001701A Process for making bipolar having graded or modulated collector Emerging Cross-Sectional Technologies 18 Expired
US6359317B1 Vertical PNP bipolar transistor and its method of fabrication Electricity 14 Expired
US7557010B2 Method to improve writer leakage in a SiGe bipolar device Emerging Cross-Sectional Technologies 9 Active
US6191001A Shallow trench isolation method Electricity 8 Expired
US9331667B2 Methods, systems, and apparatuses for temperature compensated surface acoustic wave device Electricity 5 Active
US10469050B2 Guided acoustic wave device Electricity 5 Active
US7407824B2 Guard ring for improved matching Emerging Cross-Sectional Technologies 5 Active
US7923340B2 Method to reduce collector resistance of a bipolar transistor and integration into a standard CMOS flow Electricity 4 Active
US7642617B2 Integrated circuit with depletion mode JFET Electricity 3 Active
US8044553B2 Temperature compensated surface acoustic wave device and method having buried interdigital transducers for providing an improved insertion loss and quality factor Emerging Cross-Sectional Technologies 2 Active
US7253012B2 Guard ring for improved matching Emerging Cross-Sectional Technologies 2 Expired
US9209380B2 Acoustic wave device Electricity 1 Active
US8552819B2 High coupling, low loss saw filter and associated method Electricity 1 Active
US9973169B2 Surface acoustic wave filter with a cap layer for improved reliability Electricity 1 Active
US7498204B2 Structure and method for improved heat conduction for semiconductor devices Electricity 1 Active
US7456061B2 Method to reduce boron penetration in a SiGe bipolar device Electricity 0 Active
US10476481B2 Acoustic filtering circuitry including capacitor Electricity 0 Active
US7479438B2 Method to improve performance of a bipolar device using an amorphizing implant Electricity 0 Active
US7666750B2 Bipolar device having improved capacitance Electricity 0 Active
US10886893B2 Reduced-size guided-surface acoustic wave (SAW) devices Electricity 0 Active
US8106480B2 Bipolar device having improved capacitance Electricity 0 Active
US6815302B2 Method of making a bipolar transistor with an oxygen implanted emitter window Electricity 0 Expired
US8147909B2 Method of making and using alloy susceptor with improved properties for film deposition Chemistry; Metallurgy 0 Active

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