Alpha and Omega Semiconductor, Group ("AOS Group") was established in 2000 and is headquartered in Silicon Valley, USA. It is an enterprise integrating semiconductor design, wafer manufacturing, packaging and testing, mainly engaged in power semiconductor devices (including power MOSFET, IGBT and power integrated circuit products) product design and manufacturing. At present, AOS has an 8-inch wafer fab in Oregon, USA, two packaging plants in Songjiang, Shanghai, and R&D centers in Silicon Valley, Taiwan, and Shanghai. The product market involves notebook computers, LCD TVs, mobile phones, home appliances, communication equipment, industrial control, lighting applications, automotive electronics and other fields.