Patent ID: 6478206
Filing Date: 2002-11-12
Classification: C03B,Y02P,Y10T

Abstract:
A method of forming a scribe line on a work surface comprising the steps of preparing a scribing apparatus comprising a scribe body including an abutment member having at least first and second ridgelines and a sharp tip end portion and a vibration generating means for periodically applying vibrations to the abutment member,applying a vibration to the abutment member with the tip end portion thereof abutting against the work surface, and moving the scribe body relative to the work surface in a direction along the work surface to thereby form a scribe line on the work surface, wherein said vibration generating means vibrates the abutment member in a direction crossing the work surface so as to form a plurality of spaced-apart recesses on the work surface by the abutment member, a first angle constituted by the first ridgeline of the abutment member and the work surface and a second angle constituted by the second ridgeline thereof and the work surface are different from each other and the first and second ridgelines are opposed in the moving direction of the scribe body, and cracks are formed from the recesses at portions corresponding to the first and second ridgelines so as to extend in the moving direction of the scribe body, said recesses, and said cracks connecting said recesses, forming said scribe line.