 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, will announce its second quarter 2021 financial results for the period ended March 31, 2021 on Wednesday, May 5, 2021 after market clos 