Based in Millbury, Mass., Stellar Industries Corp. offers services to the telecommunications, biomedical and defense industries. It offers products, such as custom lapped and polished electronic grade ceramics composed of alumina, beryllium oxide, aluminum nitride or specialty ceramics. The company also offers products, such as laser diode submounts and detectors, microwave substrates and hybrid thick film substrates. Stellar Industries Corp. also supplies custom services for metallization on the ceramics using a variety of thick film, thin film and refractory and direct bond copper metallization. The firm also specializes in vapor deposited thin films and gold/tin solders on thick film and thin film as well as on semiconductor wafers. It offers services, including ceramic machining and gold / tin metallization as well.