METHOD FOR METALLIZING A SILICATE, QUARTZ, GLASS OR SAPPHIRE SUBSTRATE AND SUBSTRATE OBTAINED THEREFORE.

摘要

The process makes it possible to make metal adhere to a substrate surface made of silica, quartz, glass or sapphire. The surface to be metallised is first of all roughened, in a known manner, by mechanical abrasion to obtain a roughness of between 0.2 mu m and 0.7 mu m, and is then subjected to a chemical pickling treatment by immersion for an effective period in an aqueous HF solution. According to the invention, the process then comprises the following stages: ionic pickling of the surface to a depth of less than 30 nm and then the application to the surface of a first metallic adhesiveness layer by cathodic sputtering. …??Application to the production of thin-layer hybrid circuits. …IMAGE…