Crystal Inspector: A description for the crystal inspector job
Benchwork Jobs » Jobs In Assembly And Repair Of Electrical Equipment » Jobs In Assembly And Repair Of Electronic Components And Accessories Nec » Crystal Inspector
Crystal Inspector – Crystal evaluator Inspects, measures, and tests semiconductor crystal ingots to determine compliance with specifications, using measuring devices and test equipment: Transports ingot to workbench by cart or by hand. Measures ingot flat, diameter, and length, using calipers and ruler. Weighs ingots on scales and calculates weight loss due to grinding and sawing. Tests ingot resistivity, using electronic probes. Records weights, measurements, and other test results in logbook and on labels, and attaches labels to ingots. May also operate saws to cut off ends of crystal or to cut sample wafers. May also tend furnace that heat-treats ingots to alter resistivity to meet specifications. May also determine crystal orientation, using x-ray machine. May also operate grinding machine to bevel ends of crystals. May also operate sandblasting machine to remove glaze from ingot surface. May also tend equipment that etches ingots to remove surface material. May also calculate proportion of impurities, using resistivity readings and specified formula.
Job industry: electronic industry
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