A process for preparing a printed circuit board potting type optical biopsy sample method
2013
The present invention is a printed circuit board for the potting type, there is provided a method of optical biopsy sample preparation, the test potting type printed circuit board is attached to the reinforcement plate surface, and then cut sequentially sampled sealant filling the mold, metallographic analysis of the samples, grinding, polishing, etching and other process for producing micro-optical biopsy sample obtained. Slicing the sample preparation process overcomes the potting-type printed circuit board directly cut metallographic sampling section samples cause deformation, the sealant filling section samples occur during the bending mold, the grinding process can easily over-polished so on, to ensure that the sample Microsection stability and consistency; reduce potting type printed circuit board quality testing costs, improve the detection efficiency and the accuracy and reliability of test results.
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