Patent ID: 6678453
Filing Date: 2004-01-13
Classification: C03C,G02B

Abstract:
An article comprising a glass pattern fixed on a substrate, the article made by a method comprising:depositing a layer of thermally crystallizable glass on the substrate; forming a pattern of seed material, the seed material including a nucleating agent and being positioned adjacent a surface of the layer of thermally crystallizable glass; inducing crystal nucleation in the seed material; heat treating the seed material and the layer of thermally crystallizable glass to induce crystal growth from the seed material through a thickness of the adjacent layer of thermally crystallizable glass at selected portions of the layer of thermally crystallizable glass which are adjacent the pattern of seed material to convert the layer of thermally crystallizable glass to a desired pattern of glass surrounded by crystalline material; and selectively etching the crystalline material from the substrate while leaving the desired pattern of glass substantially unaffected by the etching.