Patent ID: 9593405
Date: 2017-03-14
CPC Classifications: C23C,Y02P

Claim:
1. A method of depositing a dielectric film, comprising: sputter depositing a first layer of a dielectric material on a substrate; after said sputter depositing said first layer of said dielectric material, inducing and maintaining a plasma over said substrate to provide ion bombardment of said first layer of said dielectric material for reducing a density of pinholes in said first layer; sputter depositing a second layer of said dielectric material on the ion bombarded first layer of said dielectric material; after said sputter depositing said second layer of said dielectric material, and without inducing and maintaining a plasma over said substrate and not providing ion bombardment of said second layer of said dielectric material, sputter depositing a third layer of said dielectric material on said second layer of said dielectric material; and after said sputter depositing said third layer of said dielectric material, inducing and maintaining a plasma over said substrate to provide ion bombardment of said third layer of said dielectric material for reducing a density of pinholes in said third layer; wherein said vacuum depositing said first layer is in a first deposition system, said vacuum depositing said second layer is in a second deposition system and said vacuum depositing said third layer is in a third deposition system; and wherein said dielectric material is chosen from the group consisting of lithium phosphorous oxynitride and lithium cobalt oxide.