Method for manufacturing double-sided flexible printed board

Details Method for manufacturing double-sided flexible printed board Method for manufacturing double-sided flexible printed board

2007-05-08

2007-05-08

Chang, Richard (Department: 3726)

Metal working

Method of mechanical manufacture

Electrical device making

C029S830000, C029S846000, C427S096100, C427S096900, C427S097100, C427S097200, C427S097700, C361S750000, C428S209000, C428S458000, C428S473500, C428S901000, C174S254000

Reexamination Certificate

active

10735679

ABSTRACT:
A double-sided flexible printed board is manufactured by: (a) forming a polyimide precursor layer on a metal layer; (b) forming an upper circuit layer on the polyimide precursor layer by a semi-additive technique; and (c) imidating the polyimide precursor layer to form a polyimide insulating layer.

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