IXYS Corporation is an integrated semiconductor company. It specializes in the development, manufacture and marketing power semiconductors, advanced mixed-signal integrated circuits (ICs), application specific integrated circuits (ASICs), microcontrollers, systems and radio frequency (RF), and power semiconductors. The Company's power semiconductor products are divided into two primary categories: power MOS, or metal-oxide-silicon, and power bipolar products. During the fiscal year ended March 31, 2012 (fiscal 2012), power semiconductors constituted approximately 75.5% of the Company�s revenues, which included 26.1% of revenues from power MOS transistors and 49.4% of revenues from bipolar products. It designs and sells ICs that has applications in telecommunications, display, power management, security systems and appliances. In July 2013, IXYS Corp completed its previously announced acquisition of Samsung's 4- and 8-bit microcontroller line.