Product name: 20 L high speed circuit board
Substrate: Taiyao/TU872LK
Layer: 20L
Finished plate thickness: 3.20mm
Copper plating thickness: 1oz (35 μm)
Welding mask: green oil/white paint
Minimum line width/line spacing: 4mil/4mil
Surface treatment: electroplated hard gold 3-15u"
Blind hole: L3-L20
Product application: Communication base station backplane