Alpha & Omega Semiconductor Profile

Alpha & Omega Semiconductor Patent Grants

Assymetric poly gate for optimum termination design in trench power MOSFETs

Patent Number 9627526 - April 18, 2017

A semiconductor device having a plurality of transistors includes a termination area that features a transistor with an asymmetric gate.

Circuit suppressing excessive current in startup phase of a voltage converter and method thereof

Patent Number 9627983 - April 18, 2017

A control circuit and the control method for controlling the current voltage converter of a power conversion system in the start-up phase are…

Injection control in semiconductor power devices

Patent Number 9620630 - April 11, 2017

Semiconductor power devices can be formed on substrate structure having a lightly doped semiconductor substrate of a first conductivity type…

Configuration of gate to drain (GD) clamp and ESD protection circuit for power device breakdown protection

Patent Number 9620498 - April 11, 2017

A semiconductor power device supported on a semiconductor substrate comprising a plurality of transistor cells each having a source and a…

Integrated Schottky diode in high voltage semiconductor device

Patent Number 9620584 - April 11, 2017

This invention discloses a method for manufacturing a semiconductor power device in a semiconductor substrate comprises an active cell area…

Alpha & Omega Semiconductor Patent Applications

BATTERY PROTECTION PACKAGE AND PROCESS OF MAKING THE SAME

Application Number 20170098626 - April 6, 2017

The present invention discloses small-size battery protection packages and provides a process of fabricating small-size battery protection…

SYSTEM AND METHOD FOR EXTENDING THE MAXIMUM DUTY CYCLE OF A STEP-DOWN SWITCHING CONVERTER WITHOUT MAXIMUM DUTY CONTROL

Application Number 20170093281 - March 30, 2017

The invention proposes a system and method for extending the maximum duty cycle of a step-down switching converter to nearly 100% while…

ASSYMETRIC POLY GATE FOR OPTIMUM TERMINATION DESIGN IN TRENCH POWER MOSFETS

Application Number 20170069750 - March 9, 2017

A semiconductor device having a plurality of transistors includes a termination area that features a transistor with an asymmetric gate.

VOLTAGE DETECTION CIRCUIT AND A METHOD OF DETECTING VOLTAGE CHANGES

Application Number 20170059630 - March 2, 2017

A power conversion system and a method for voltage change detection, specifically, relates to a detection circuit implemented in the AC-DC…

FLYBACK CONVERTER OUTPUT CURRENT EVALUATION CIRCUIT AND EVALUATION METHOD

Application Number 20170047853 - February 16, 2017

An output current calculating circuit for a flyback converter operating under CCM and DCM is disclosed. The off current value IOFF and the…

Alpha & Omega Semiconductor Federal District Court Decisions

Third Dimension Semiconductor, Inc v. Alpha and Omega Semiconductor, Inc. et al

California Northern District Court - August 13, 2012

ORDER TERMINATING SEAN N. HSU AS COUNSEL. Signed by Judge Edward M. Chen on 8/13/12. (bpf, COURT STAFF) (Filed on 8/13/2012)

Third Dimension Semiconductor, Inc v. Alpha and Omega Semiconductor, Inc. et al

California Northern District Court - July 2, 2012

STANDING ORDER. Signed by Judge Edward M. Chen on 7/2/12. (bpf, COURT STAFF) (Filed on 7/2/2012)