The method of delineation sheet of brittle material

The method of delineation sheet of brittle material

  • CN 101,811,820 A
  • Filed: 02/23/2010
  • Published: 08/25/2010
  • Est. Priority Date: 02/24/2009
  • Status: Active Application
First Claim
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1. method of delineating sheet of brittle material, this method comprises:

  • In the surface of sheet of brittle material, form slight crack at initiation point place apart from this sheet of brittle material first edge predetermined distance;

    Shine described slight crack with electromagnetic radiation beam, form the perforate crackle at described initiation point place;

    Traversing described electromagnetic radiation beam makes described perforate crackle to described sheet of brittle material second border extended, and wherein said perforate crackle does not intersect with first edge in the traversing process of described electromagnetic radiation beam,Wherein between electromagnetic radiation source and sheet of brittle material surface, mask is set, prevents that described electromagnetic radiation beam from shining on the described sheet of brittle material surface between described initiation point and described first edge.

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