Smart Electronics Membrane switch keypad fpc soft wiring pcba circuit board double sided immersion gold ultra-thin flexible circuit board soft boards
Membrane switch keypad fpc soft wiring pcba circuit board double sided immersion gold ultra-thin flexible circuit board soft boards
Outer copper thickness:1/2oz,1oz
FR4 reinforcement, PET reinforcement
Surface Treatment: Immersion Gold, Lead Free Tin Spray, OSP
Substrate: Polyimide (PI)
Character color:black,white
Number of layers:14
Minimum line width/spacing: 0.125mm, 0.1mm
Minimum Hole Diameter:0.1mm
Plate thickness:0.12mm