Patent assignee · US · COMPANY

Alpha and Omega Semiconductor, Ltd.

739Patents
722Active
739Granted
61Portfolio score

Filing activity: Aug 25, 1998 → Jun 13, 2021 · 234 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8119482B2 MOSFET using gate work function engineering for switching applications Electricity 123 Active
US8299494B2 Nanotube semiconductor devices Electricity 60 Active
US7868431B2 Compact power semiconductor package and method with stacked inductor and integrated circuit die Electricity 59 Active
US9697450B1 Magnetic stripe data transmission system and method for reliable data transmission and low power consumption Physics 58 Active
US7781826B2 Circuit configuration and manufacturing processes for vertical transient voltage suppressor (TVS) and EMI filter Electricity 47 Active
US7786837B2 Semiconductor power device having a stacked discrete inductor structure Electricity 43 Active
US7910486B2 Method for forming nanotube semiconductor devices Electricity 37 Active
US7884696B2 Lead frame-based discrete power inductor Electricity 37 Active
US8218276B2 Transient voltage suppressor (TVS) with improved clamping voltage Electricity 35 Active
US7880223B2 Latch-up free vertical TVS diode array structure using trench isolation Electricity 33 Active
US7285822B2 Power MOS device Electricity 32 Expired
US8503141B2 Transient voltage suppressor (TVS) with improved clamping voltage Electricity 31 Active
US8575695B2 Lateral super junction device with high substrate-drain breakdown and built-in avalanche clamp diode Electricity 31 Active
US7538997B2 Circuit configurations to reduce snapback of a transient voltage suppressor Electricity 30 Active
US8753935B1 High frequency switching MOSFETs with low output capacitance using a depletable P-shield Electricity 29 Active
US7554839B2 Symmetric blocking transient voltage suppressor (TVS) using bipolar transistor base snatch Emerging Cross-Sectional Technologies 29 Active
US8431470B2 Approach to integrate Schottky in MOSFET Electricity 28 Active
US8110869B2 Planar SRFET using no additional masks and layout method Electricity 28 Active
US8338854B2 TVS with low capacitance and forward voltage drop with depleted SCR as steering diode Electricity 27 Active
US7208818B2 Power semiconductor package Electricity 27 Expired
US7829947B2 Bottom-drain LDMOS power MOSFET structure having a top drain strap Electricity 26 Active
US8338915B2 Circuit configuration and manufacturing processes for vertical transient voltage suppressor (TVS) and EMI filter Electricity 25 Active
US7892924B1 Method for making a charge balanced multi-nano shell drift region for superjunction semiconductor device Electricity 25 Active
US8062932B2 Compact semiconductor package with integrated bypass capacitor and method Electricity 24 Active
US7256446B2 One time programmable memory cell Electricity 24 Expired

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