| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a circuit formation method using a laser. <P>SOLUTION: In the circuit formation method using a laser, a photographic sensitive material is applied on a substrate to form a photographic sensitive material layer, and the photographic sensitive material layer is exposed to the laser using a patterning method. A substrate having an exposed region and an unexposed region is put into a nano conductive metal solution, and absorbs nano metal particles on the photographic sensitive material in the exposed region by a linear molecular structure of the photographic sensitive material in the exposed region, and forms a metal circuit layer on the photographic sensitive material. Use of a laser radiation method can efficiently control product quality owing to high power, high density, high directivity and monochromaticity of the laser. In addition, the pattern-exposed photographic sensitive material absorbs the metal particles and forms the metal circuit layer, which reduces waste fluid efficiently and coincides with modern idea of environmental protection. <P>COPYRIGHT: (C)2012,JPO&INPIT |
