to test resistivity of wafers. Furnace and Thermal Processes: Equipment with a temperature gauge used for processing wafers. A constant temperature is required for the process. Front.... We provide wafer fabrication and foundry services to: Semiconductor Manufacturers Medical Corporations Equipment Manufacturers MEMs Organizations Solar Developers Instrument...: The measurement from the center of the flat through the center of the wafer to the opposite edge of the wafer. (Perpendicular to the flat) Four-Point Probe: Test equipment used...