Aluminum-free Compound for Stable Heteroepitaxial Materials

MATERIALS LASERS ALUMINUM-FREE HETEROEPITAXIAL SILICON III-V'S KOPIN CORP WILL DESENSITIZE THE DELETERIOUS IMPACT OF THE INHERENT DEFECTS IN HETEROEPITAXIAL FILMS FORMED ON SILICON i.e., BY THE SELECTION AND USE OF "ALUMINUM-FREE" SUBSTITUTE MATERIALS WITH SUITABLE PROPERTIES. EVIDENCE EXISTS THAT SUCH Al-FREE COMPOUNDS OFFER THE PROSPECT OF USING MATERIALS WITH A RELATIVE IMMUNITY TO THE DEFECTS THAT OCCUR IN LATTICE MIS-MATCHED FILMS. IN PHASE 1, GaInP/GaAs LASERS WILL START WITH MATERIALS, EMPHASIZING A CORRELATION BETWEEN MATERIAL PROPERTIES, DEFECT STRUCTURE AND POTENTIAL DEVICE PERFORMANCE. THIS MAKES POSSIBLE ULTRA HIGH SPEED ELECTRO-OPTICAL III-V DEVICES SUCH AS LASERS USED FOR ADVANCED COMMUNICATIONS.