Patent ID: 7067198
Filing Date: 2006-06-27
Classification: B23K,B29C,B81B,B81C,G02B,G03H,G11B,Y10S,Y10T

Abstract:
1. A three-dimensional structure comprising: a flat substrate having a flat surface; a thin layer for absorption of laser light laminated on said flat substrate; and a transparent layer laminated on said thin layer, wherein a thickness of each of the thin layer and the transparent layer is adjusted so that when process laser light is irradiated on the transparent layer at a laser-irradiated area, the process laser light is absorbed in the thin layer after passing through the transparent layer, and the transparent layer and the thin layer are removed by an energy of the absorbed laser light over all of the laser-irradiated area where the process laser light is irradiated, to expose the flat surface of the flat substrate over all of the laser-irradiated area, and said thin layer for absorption of laser light and said transparent layer are further alternately laminated in a plurality of pairs, and each removed material section has a depth different from each other.