A kind of electroless copper backlight test method
A technology of backlight testing and electroless copper deposition, which is applied in measuring devices, scientific instruments, and material analysis through optical means, and can solve the problem of backlight test printed board thickness, number of layers, aperture, number of holes, and backlight samples that are not specified in detail. Inconsistency, unqualified backlight level and other problems, to reduce the phenomenon of unqualified backlight detection, achieve standardization, and reduce misjudgment effects
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[0037] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0038] see figure 1 , figure 2 , Figure 5 to Figure 7 , The present invention is a method for testing the backlight of chemical immersion copper.
[0039] 1) Make a standard backlight test piece
[0040] A) Use an etching machine to remove the copper foil on the surface of the copper-clad epoxy resin glass cloth laminate, and press it into a 12-layer backlight standard film with a thickness of 2.0mm using a lamination pattern;
[0041] B) using CNC drilling machine to process two groups of backlight test holes with diameters of 0.3mm, 0.8mm and 1.0mm respectively on the backlight standard sheet obtained in step A);
[0042] C) The backlight standard sheet is processed into a standard backlight test sheet with a size of 100mm×100mm by a CNC milling machine;
[0043] D) cleaning and drying the standard backlight test piece, and vacuum packing;
[0044] 2) Electr...
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