Device and method for inspecting a three-dimensional surface structure
作者： Dieter Kant , Hubert Bellm
DOI:
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摘要: An inspection device for inspecting the solder paste printing on printed circuit boards. Three-dimensional surface structures ( 19 ) are optically detected 7 and values of their geometric properties calculated. The thus measured inspected 29 conformance to an absolute tolerance range. To fine-adjust limit values, operator has option evaluating displayed defects as pseudo-defects, in which case automatically accepted new respective
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