Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Jun. 30, 2025
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit Plans The Company maintains a 401(k) retirement plan for the benefit of qualified employees in the U.S. Employees who participate may elect to make salary deferral contributions to the plan up to 100% of the employees' eligible salary subject to annual Internal Revenue Code maximum limitations. The employer’s contribution is discretionary. Effective from April 1, 2022, the Company began to match 50% of employee contribution up to 4% of eligible compensation for a 2% maximum match. During the fiscal years ended June 30, 2025, 2024 and 2023, the Company made employer match contributions of $1.8 million, $1.8 million and $1.9 million, respectively. The Company makes mandatory contributions for its employees to the respective local governments in terms of retirement, medical insurance and unemployment insurance, where applicable, according to labor and social security laws and regulations of the countries and areas in which the Company operates. The retirement contribution rate is 7.7% in the U.S., 16.0% to 17.0% in China, 6.0% in Taiwan, 12.0% in India, and 9.3% in Germany. The Company has no obligations for the payment of such social benefits beyond the required contributions as set out above.

ALPHA & OMEGA SEMICONDUCTOR Ltd 10-K