Profile: H E I, Inc. provides electronic manufacturing services. We are an ISO 9001:2000 certified company. The microelectronic assembly operation offers high density, direct chip attach miniaturization solutions, including services from front end development through full production flex, rigid-flex and ceramic substrates, which are used as platforms for microelectronic assembly engineering services for creative technological solutions. Our rigid flex production includes flex & rigid flex substrates, high reliability products, multi-flex/wrap designs and multi- bondable solutions.