Process for depositing a carbon-rich coating on a moving substrate
First Claim
Patent Images
1. A process for depositing a carbon-rich film on a moving substrate comprising the step of:
- in an environment conducive to carbon-rich film deposition, said environment comprising an electrode having conductive and non-conductive regions in contact with said moving substrate, applying power to said electrode so as to create from said environment a plasma comprising ions, whereby said electrode becomes negatively biased with respect to said plasma, thereby accelerating said ions toward main electrode, said ions striking said moving substrate in contact with said conductive regions of said electrode resulting in deposition of said carbon-rich film on said substrate.
1 Assignment
0 Petitions
Accused Products
Abstract
A process and apparatus for deposition of a carbon-rich coating onto a moving substrate is provided. The process and apparatus involve the creation of an electric field surrounding a rotatable electrode in a carbon-containing gaseous environment. This results in carbon-rich plasma formation, wherein the electrode is negatively biased with respect to the electrode which results in ion acceleration from the plasma toward the electrode. Ion bombardment continuously occurs on a substrate in contact with the electrode producing a continuous carbon-rich coating over the length of the substrate.
114 Citations
15 Claims
-
1. A process for depositing a carbon-rich film on a moving substrate comprising the step of:
in an environment conducive to carbon-rich film deposition, said environment comprising an electrode having conductive and non-conductive regions in contact with said moving substrate, applying power to said electrode so as to create from said environment a plasma comprising ions, whereby said electrode becomes negatively biased with respect to said plasma, thereby accelerating said ions toward main electrode, said ions striking said moving substrate in contact with said conductive regions of said electrode resulting in deposition of said carbon-rich film on said substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
14. A process for depositing a carbon-rich film on a moving substrate comprising the steps of:
-
a) bringing a length of said substrate into contact with an electrode housed within a vacuum chamber, said electrode having conductive regions and non-conductive regions; and b) applying power to said electrode so as to deposit said carbon-rich film on said length of said substrate in contact with said conductive regions of said electrode, whereby deposition of said carbon-rich film is substantially confined to said moving substrate. - View Dependent Claims (15)
-
Specification