Profile: Microlink Devices, Inc. is a manufacturer of custom-designed semiconductor structures which are used in microwave and optical communication products. We are an ISO 9001:2000 certified company. We also perform contract research and development. Our current product line is used in the manufacture of heterojunction bipolar transistors. The key feature of HBTs is that different semiconductor materials are used for the emitter and base regions, which creates a heterojunction.