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Recent content by fastpcb021

  1. F

    How to prevent PCB appearance defects?

    Here have some measures, please check whether are right? If have better measures, please advise. 1. Exposed copper: There is no timely processing out of oil area; 2. Not balanced IC Sn surface: Don’t carefully checked IC area after Hot Air Leveling; 3. Repair: Worker single-handedly take-off...
  2. 6Layer PCB, Immersion Gold, Blind vias

    6Layer PCB, Immersion Gold, Blind vias

    Layer Count:6Layer PCB Material: FR4 Tg170 Fininshed Board Thickness: 1.5mm Surface Finished: Immersion Gold Special Instructions: Blind vias: L1-L2, L1-L3, L5-L6 Min. line/space: 4mil Impedance Control: +/-10%
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