Method for manufacturing a substrate having window-shaped coating films and frame-shaped coating film on the surface thereof.

摘要

A method for manufacturing a substrate having electrically conductive circuits on the surface of a transparent substrate, window-shaped coating films on the electrically conductive circuits and a frame-shaped, functional coating film at the regions not occupied with the window-shaped coating films, includes the steps of: (a) coating the surface of a transparent substrate with a photoresist composition to cover the circuits-carrying surface of the substrate, followed by forming a photoresist coating film, (b) superposing a photomask on the surface of the photoresist coating film formed through step (a) and exposing the thus masked photoresist coating film to light, (c) subjecting the substrate formed through steps (a) and (b) to development, and eliminating the photoresist coating film in the frame-shaped part, (d) subjecting the photoresist coating film left in step (c) to heat-treatment, (e) coating the substrate obtained through steps (a) to (d) in this order with a negative photoresist composition containing a function-imparting additive to cover the circuits-carrying surface of the substrate, followed by forming a functional coating film, (f) exposing the substrate obtained through steps (a) to (e) in this order to light emitted from the opposite side of the circuits-carrying surface of the substrate, (g) subjecting the substrate obtained through steps (a) through (f) in this order to development, and eliminating the uncured part of the functional coating film, (h) eliminating the photoresist coating film having been heat-treated in step (d), and (i) subjecting the substrate obtained through steps (a) to (h) in this order to electro-deposition using the circuits on the substrate as one electrode, and forming electro-deposition coating films at the window-shaped parts on the circuits.