Patent ID: 8307672
Filing Date: 2012-11-13
Classification: B23K,B28D,C03C,Y10T

Abstract:
1. A glass substrate processing method for forming a projection on a surface of a glass substrate comprising: irradiating laser light onto the glass substrate such that the laser light is focused on a portion within the glass substrate, said irradiating forming a high density area around the portion where the laser light is focused that has a higher density and a lower etching rate than areas where the laser light was not irradiated such that the surface shape of the glass substrate is maintained in the surface shape thereof previous to irradiating the laser light; and forming the projection on the surface of the glass substrate by performing chemical etching on the glass substrate using an etching solution and by controlling the amount of the etching such that the high density area around the portion where the laser light is focused is allowed to remain.