Patent ID: 7887997
Filing Date: 2011-02-15
Classification: G03F

Abstract:
1. A manufacturing method for conducting films on two opposite surfaces of a transparent substrate of a touch control circuit, comprising: contacting a first photoresist layer having photosensitive and discolored emulsion on a first conducting coat formed on a first surface of the transparent substrate, and contacting a second photoresist layer on a second conducting coat formed on a second surface of the transparent substrate; exposing the first photoresist layer to form a circuit pattern with distinguishable color on exposed regions of the first photoresist layer; employing the circuit pattern as an aligning benchmark for the second photoresist layer, and exposing the second photoresist layer according to the aligning benchmark; developing the photoresist layers on the two surfaces of the transparent substrate at the same time to expose regions of the first conducting coat and the second conducting coat, which should be etched; etching the exposed regions of the first conducting coat and the second conducting coat at the same time to form a first conducting film of a touch control circuit from the first conducting coat and form a second conducting film of the touch control circuit from the second conducting coat.