 TEMPE, Ariz.--BUSINESS WIRE--Amtech Systems, Inc. NASDAQ: ASYS, a manufacturer of capital equipment, including thermal processing and wafer polishing, and related consumables used in fabricating semiconductor devices, such as silicon carbide SiC and silicon power devices, analog and discrete devices, electronic assemblies and light-emitting diodes LEDs, today announced that it has changed the date of its previously announced earnings conference call. The Company will now announce its fi 