Patent ID: 6054188
Filing Date: 2000-04-25
Classification: A61B,B05D,C23C,H01J

Abstract:
A method for depositing onto a substrate a non-ideal barrier coating sequence comprising an inorganic material and organic materials comprising the steps of:(a) providing a vacuum tight chamber, means for delivering a monomer gas to said chamber, means for delivering an oxidizer gas to said chamber, means for applying radio frequency power to said chamber, means for creating and maintaining a vacuum inside said chamber and electrodes;(b) positioning said substrate in said chamber;(c) evacuating said chamber to below 50 mTorr;(d) delivering a first monomer gas to said chamber;(e) delivering an oxidizer gas to said chamber;(f) delivering a first radio frequency electrical current to said electrodes;(g) depositing an inorganic material on said substrate;(h) evacuating said chamber to below 50 mTorr;(i) delivering a second monomer gas to said chamber;(j) delivering a second radio frequency electrical current to said electrodes;(k) depositing an organic material on said inorganic material; and(l) repeating steps (c)-(f) above; and(m) depositing an inorganic material on said organic material.