Professional FPC factory, can manufacture 2L FPC, eight pads need convex hull design, for payment equipment.
FPC, convex hull design FPC.
Why use convex hull design for this board? This design is used on payment equipment. Convex hull design is for better contact.
Do you know what’s the advantages and disadvantages of Convex hull design?
Advantages: Easy to touch while pressing
Disadvantages: Making circuit board products is complicated and cost is higher.
1mil adhesiveless Polyimide(PI)
Board Total Thickness
1/2 mil coverlay
green solder mask on assemble area
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