US 6,645,685 B2 · Process for producing printed wiring board

Abstract

Disclosed is disclosed a process for producing a printed wiring board which comprises the steps of: a) exposing a wiring board having at least one photoconductive layer in which its chargeability is changed by light exposure on at least one surface of a conductive support which comprises an insulating substrate and at least one metal conductive layer provided at least one surface thereof through a resist pattern; b) charging the photoconductive layer to form an electrostatic latent image; c) forming a toner image on the photoconductive layer by toner developing treatment; d) removing a portion of the photoconductive layer to which no toner is attached by dissolution to form a resist image; and e) removing a portion of the metal conductive layer other than a portion where the resist image is formed by etching.

Claims24

Dependent claims

A process for producing a printed wiring board which comprises the steps of:

a) exposing a wiring board having at least one photo-conductive layer in which its chargeability is changed by light exposure on at least one surface of a conductive support which comprises an insulating substrate and at least one metal conductive layer provided on at least one surface thereof through a resist pattern;
b) charging the photoconductive layer to form an electrostatic latent image;
c) forming a toner image on the photoconductive layer by toner developing treatment;
d) removing a portion of the photoconductive layer to which no toner is attached by dissolution to form a resist image;
and
e) removing a portion of the metal conductive layer other than a portion where the resist image is formed by etching.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

09/945,807Filed 5 Sep 2001

Priority

JP 2000-2695436 Sep 2000

Published

US 2002/0102772 A11 Aug 2002

Granted

11 Nov 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H05K 3/065
Etching masks: applied by electrographic, electrophotographic or magnetographic methods
G03G 13/26
Electrographic processes using a charge pattern: for the production of printing plates for non-xerographic printing processes
G03G 13/28
For the production of printing plates for non-xerographic printing processes: planographic printing plates
G03G 13/283
Planographic printing plates: obtained by a process including the transfer of a tonered image, i.e. indirect process

Process for producing printed wiring board

Life of this patent

Process for producing printed wiring board

Life of this patent

Abstract

Claims24