Patent ID: 6312968
Filing Date: 2001-11-06
Classification: G02F,H01L

Abstract:
A method for fabricating a monolithically integrated liquid crystal array display and control circuitry on a silicon-on-sapphire structure, comprising the steps of:a) forming an epitaxial silicon layer on a sapphire substrate to create a silicon-on-sapphire structure;b) ion implanting said epitaxial silicon layer with a species selected from the group consisting of silicon ions, tin ions, germanium ions, and carbon ions to create an ion implanted epitaxial silicon layer;c) annealing said silicon-on sapphire structure;d) oxidizing said ion implanted epitaxial silicon layer to form a silicon dioxide layer from a portion of said epitaxial silicon layer so that a thinned ion implanted epitaxial silicon layer remains;e) removing said silicon dioxide layer to expose said thinned ion implanted epitaxial silicon layer;f) fabricating transistors on said thinned ion implanted epitaxial silicon layer;g) fabricating electrical contacts that are electrically connected to said transistors;h) fabricating liquid crystal capacitors on said silicon-on sapphire structure that are electrically connected to said transistors by said electrical contacts; andi) fabricating display driver circuitry on said thinned ion implanted epitaxial silicon layer for modulating said liquid crystal capacitors.