Company Description
Alpha and Omega Semiconductor Limited designs, develops, and supplies power semiconductor products for computing, consumer electronics, communication, and industrial applications in Hong Kong, China, South Korea, the United States, and internationally.
The company offers power discrete products, including metal-oxide-semiconductor field-effect transistors (MOSFET), Shielded-Gate low voltage and mid-voltage MOSFETs, SuperJunction high voltage MOSFETs, and trench-stop insulated gate bipolar transistors (IGBTs), as well as application specific MOSFETs for use in smartphone chargers, battery packs, notebooks, desktop and servers, data centers, base stations, graphics card, game boxes, TVs, AC adapters, power supplies, motor control, power tools, e-vehicles, white goods and industrial motor drives, UPS systems, solar inverters, and industrial welding.
It also provides power ICs that deliver power, as well as control and regulate the power management variables, such as the flow of current and level of voltage.
The company's power ICs are used in flat panel displays, TVs, notebooks, graphic cards, servers, AI datacenters, DVD/Blu-Ray players, set-top boxes, and networking equipment.
In addition, the company offers transient voltage protection products, analog switches, and electromagnetic interference filters for notebooks, desktop PCs, tablets, flat panel displays, TVs, smartphones, and portable electronic devices.
Further, it provides silicon carbide, IPM, TVS, and HV gate drivers; and power modules, multiphase controllers, EZBuck regulators, and diode protection switches.
Alpha and Omega Semiconductor Limited was incorporated in 2000 and is headquartered in Sunnyvale, California.
| Country | United States |
| Founded | 2000 |
| IPO Date | Apr 29, 2010 |
| Industry | Semiconductors |
| Sector | Technology |
| Employees | 2,428 |
| CEO | Stephen Chang |
Contact Details
Address: 475 Oakmead Parkway Sunnyvale, California 94085 United States | |
| Phone | 408 830 9742 |
| Website | aosmd.com |
Stock Details
| Ticker Symbol | AOSL |
| Exchange | NASDAQ |
| Stock Type | Common Stock |
| Fiscal Year | July - June |
| Reporting Currency | USD |
| CIK Code | 0001387467 |
| CUSIP Number | G6331P104 |
| ISIN Number | BMG6331P1041 |
| SIC Code | 3674 |
Key Executives
| Name | Position |
|---|---|
| Dr. Mike Fushing Chang Ph.D. | Executive Vice President of Strategic Initiative and Chairman |
| Yifan Liang | Chief Financial Officer and Corporate Secretary |
| Dr. Wenjun Li Ph.D. | Chief Operating Officer |
| Dr. Bing Xue Ph.D. | Executive Vice President of Worldwide Sales and Business Development |
| Steve Sun | Vice President of Human Resources |
Latest SEC Filings
| Date | Type | Title |
|---|---|---|
| Sep 18, 2025 | ARS | Filing |
| Sep 18, 2025 | DEFA14A | Additional definitive proxy soliciting materials and Rule 14(a)(12) material |
| Sep 18, 2025 | DEF 14A | Other definitive proxy statements |
| Aug 28, 2025 | S-8 | Securities to be offered to employees in employee benefit plans |
| Aug 28, 2025 | 10-K | Annual Report |
| Aug 14, 2025 | SCHEDULE 13G/A | Filing |
| Aug 6, 2025 | 8-K | Current Report |
| Jul 14, 2025 | 8-K | Current Report |
| Jun 5, 2025 | UPLOAD | Filing |
| Jun 4, 2025 | 8-K/A | [Amend] Current report |