Alpha and Omega Semiconductor Limited appointed Joshua Chien to serve as an independent director of its Board, effective July 8, 2026. The decision, taken by the Board upon the recommendation of the Nominating and Corporate Governance Committee, is intended to strengthen the company's governance and strategic oversight as it expands its business operations. The appointment is effective immediately.

Stephen Chang, CEO of Alpha and Omega Semiconductor, stated that Mr. Chien brings a wealth of experience in business development, supply chain strategy, and operational leadership across the technology and electronics manufacturing industries. Mr. Chang highlighted that Mr. Chien's entrepreneurial mindset and proven ability to drive growth will help the Board execute its strategic priorities and create long-term value for shareholders.

Mr. Chien currently serves as Executive Vice President, Product & Strategy Officer at Sonatus, Inc., an AI-enabling mobility software company. In this role, he leads product strategy and the expansion of the company’s platform into new verticals beyond automotive. He operates in a fractional executive capacity through his advisory firm, DeoNow.

Prior to his current role, Mr. Chien served as Chief Commercial Officer of SMTC Corporation from 2021 to April 2026. At SMTC Corporation, a global electronics manufacturing services company, he was responsible for all revenue-generating functions, including sales, marketing, account management, and Asia operations, achieving more than fourfold revenue growth. From 2014 to 2020, he was Senior Vice President of Global Sales and Marketing at SMTC Corporation. Before that, he held various positions at Sanmina Corporation from 2000 to 2014, including Vice President of Global Strategic Business Development and Customer Service.

Joshua Chien's Profile

Mr. Chien holds a Bachelor of Arts in Economics from the University of California, Berkeley, and completed the Finance for Executives program at Harvard Business School. Alpha and Omega Semiconductor Limited is a designer, developer, and global supplier of power semiconductors, including Power MOSFET, SiC, GaN, and IGBT products.

Alpha and Omega Semiconductor Limited (AOS) has introduced the AOPL66801 80V MOSFET in a half-bridge configuration, utilizing its new AmpStack packaging technology to enhance power density for applications ranging from AI factories to power tools. The vertically stacked DFN6x5 package integrates two MOSFETs, forming a half-bridge that maximizes PCB space compared to discrete solutions. This design minimizes parasitic inductance, reducing phase-node voltage ringing and stress on the MOSFETs.

The AOPL66801 features an optimized clip design for the switch node and a Kelvin sense pin to maintain gate-voltage stability during high-speed switching. These technical improvements support higher power density and increased operational efficiencies. The device has a maximum junction temperature of 175 °C, providing robust thermal performance.

"Our new AmpStack half-bridge packaging is a game-changer for designers looking to increase power density compared to solutions using two DFN5x6 packages," said Peter H. Wilson, Sr. Director of the MOSFET product line at AOS. "Customers don't just get more power—they get significantly higher application reliability."

Technical Highlights

The AOPL66801 is immediately available in production quantities with a 16-week lead time. The unit price in 1,000-piece quantities is $6.16.