HDI for LED sign board
  • Specification

    Layer count: 3 stage 8 layer 
    Board thickness:2.0mm
    Dimension:261*180.98mm
    Raw material:FR4 EM825
    Copper thickness on the board surface:≥35um
    Copper thickness in the hole barrel:20um
    Min.line width/space:0.075mm
    Minimum hole diameter:0.1mm 
    Surface finishing:immersion gold≥2u"
    Pitch: P0.9  
    Application:LED