IMAGE FORMING MATERIAL, IMAGE FORMING METHOD AND PRODUCTION OF PRINTED CIRCUIT BOARD

摘要

PROBLEM TO BE SOLVED: To easily obtain an image of high resolution by a laser direct drawing method and to easily and accurately produce a printed circuit board having a fine pattern and non-via holes and/or via holes. SOLUTION: A light-absorbing layer is formed on a substrate and then removed by irradiation of laser light to form an image of high resolution. This method can be used for the production of a printing plate or a printed circuit board. To control the film thickness of an image, an alkali-soluble layer may be formed under the light-absorbing layer. Further, in order to improve the working environment, a transfer layer is formed facing to the light-absorbing layer to suck the removed light-absorbing layer.