Compare burrs on market PCB with burrs of our company PCB

2018-11-26 17:19Writer: qyadminReading:

       Burr Evaluation Method

          The irregularity around the drilled hole is named a Burr.

        If the evaluation using stack drilling has been done, the burr usually occurs on the entry side of the very best panel and the exit side of underneath panel - they are the panels evaluated.
 
        The burr is inspected by firmly taking images of drilled hole from the very best, or measured after cross-section to verify the burr height.


           Drilled hole image from the top (Entry side of the top panel, ø3.1mm)

                                               burr                                                burr
                                                                          hole with burr                                                                                                   our  burr


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