Patent ID: 7610874
Filing Date: 2009-11-03
Classification: B05D,G02F

Abstract:
1. An apparatus for depositing a poled plasma film on a substrate, the apparatus comprising: a substantially air-tight chamber; a positive plasma-generating electrode disposed within the chamber; a plasma excitation power source having its output connected to the positive plasma-generating electrode; a ground electrode disposed within the chamber, the ground electrode connected to the electrical ground potential of the plasma excitation power source; a substrate fixtured in the chamber between the positive plasma-generating electrode and the ground electrode, the substrate electrically isolated from the positive plasma-generating electrode and the ground electrode; a positive poling electrode and a negative poling electrode, the positive and negative poling electrodes making contact with the substrate and arranged to form a plasma exposed gap between the positive and negative poling electrodes, the gap extending from at least the top surfaces of the poling electrodes to the bottom surfaces of the poling electrodes; a dc power source, the output of the dc power source connected to the positive and negative poling electrodes to create an electrostatic field between the electrodes; and an at least one inlet port and an at least one outlet port in the chamber for flowing an at least one plasma reactant through the chamber under pressure, whereby a poled plasma film is formed on the substrate in the plasma exposed gap by plasma excitation of the at least one reactant and poling of the film by the electrostatic field as the film is deposited in the plasma exposed gap for at least a partial extent of the gap while a substantially vacuum environment is maintained in the chamber.