Patent ID: 8021534

Claim:
A method for manufacturing an electroforming mold comprising the steps of: forming a first negative type photosensitive material on the upper face of an electroconductive substrate, exposing the first negative type photosensitive material through a mask pattern arranged above the first negative type photosensitive material, forming a positive type photosensitive material on the upper face of the first negative type photosensitive material, exposing the positive type photosensitive material through a mask pattern arranged above the positive type photosensitive material, developing the positive type photosensitive material to remove the exposed region of the positive type photosensitive material, forming a film of an electroconductive layer on the upper faces of the first negative type photosensitive material exposed by removing the exposed region of the positive type photosensitive material and the positive type photosensitive material, removing the positive type photosensitive material and the electroconductive layer formed on the upper face of the positive type photosensitive material, forming a second negative type photosensitive material on the upper face of the first negative type photosensitive material exposed by removing the electroconductive layer and the positive type photosensitive material and on the upper face of the electroconductive layer, exposing the second negative type photosensitive material through a mask pattern arranged above the second negative type photosensitive material, and Developing the first negative type photosensitive material and the second negative type photosensitive material to remove an unexposed region of the first negative type photosensitive material and an unexposed region of the second negative type photosensitive material.