Modifying Stress on Substrates Supporting CVD Deposited Diamond

Abstract

A method of forming a diamond coated glass structure includes providing a substrate having a first and a second side, with each side having at least one corner and one edge. A first portion of the first side can be masked and a CVD diamond layer deposited on a second portion of the first side of the substrate. After diamond deposition, ion substitution can be used to chemically modify at least a portion of the substrate. In some embodiments, flatness of substrates can be maintained despite compressive effects due to diamond coatings. In other embodiments, ion substitution into a partially diamond coated glass structure will greatly increase impact resistance at the corners, provide lower impact resistance at the edges, and have lowest impact resistance in a central region of the diamond coated glass structure.

Dependencies are inferred from the claim text.