Process for producing gold films
AssigneeBell Telephone Laboratories, Incorporated
InventorsShobha Singh, LeGrand G. Van Uitert, George J. Zydzik
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Abstract
A process is described for producing devices and articles with gold films made by gold evaporation in which certain fluoride compounds are used to insure good adhesion of the gold film to the substrate. The process is particularly applicable to the production of gold films on non-metallic surfaces such as ceramic and glass surfaces. This procedure not only insures better adhesion of the gold film to the surface, but also permits greater processing variations without adversely affecting film adhesion.
Claims11
A process for producing a device with at least one metal layer on a surface, said metal layer consisting of at least 90 percent by weight gold comprising the steps of:
- a. depositing a bonded layer consisting essentially of at least one fluoride selected from the group consisting of CdF.sub.2, SnF.sub.2, PbF.sub.2, InF.sub.3, BiF.sub.3, AgF, GaF.sub.3, and ZnF.sub.2
- b. thereafter evaporating the metal layer onto the fluoride layer so that the gold layer adheres directly to the fluoride layer.
Dependencies are inferred from the claim text.