4L

Parameter
Layers: 4L
material: FR-4+PI
Board Thicknes: 1.0 mm
Copper Thicknes: 35 um
Line/Space: 5/5 mil
Smallest Hole Diameter: 0.2mm
Surface Treatment: ENIG(1U')
Technical Feature:
Rigid-Flex, Peelable mask, countersink