Silicon Integrated Systems (SiS), founded in 1987, is a worldwide leader in the development of leading-edge core logic chipsets. Over the last 20 years, its products have been widely used in various applications such as Desktop PCs, notebook PCs, Embedded Systems, Wireless Communications, Servers, and Digital Entertainment Devices.

Imagination Technologies Group plc has signed a license agreement with Silicon Integrated Systems Corp. a developer of leading-edge devices for the PC, communications and consumer multimedia embedded systems markets, for cores from Imagination's Ensigma UCC and PowerVR SGX families. Ensigma UCC is an advanced multi-standard communications processor technology for demodulation and connectivity. PowerVR SGX is the leading graphics acceleration technology for mobile and embedded devices. SiS is deploying the technologies in its future semiconductor devices.