Patent ID: 8697197
Filing Date: 2014-04-15
Classification: C23C,H01J,H01L

Abstract:
1. A method for plasma deposition of a thin film on a substrate by a Plasma Generating Unit (PGU) comprising: placing at least two electrodes in a processing chamber, said at least two electrodes comprising a first electrode and a second electrode, where the first electrode has a bottom surface facing a side of the substrate to be processed, and the first electrode has a first side surface facing the second electrode and a second side surface opposite the first side surface; and the second electrode has a side surface facing the first electrode; positioning the substrate proximate the bottom surface of the first electrode such that a first gap is formed between the bottom surface of the first electrode and the substrate, wherein the first gap is less than the width of the first electrode, and such that a gap between the first electrode and the second electrode is between 0.25 and 4 times the first gap between the first electrode and the substrate; maintaining the substrate at a temperature less than 200° C.; injecting a first gas at a first location that flows between first side surface of the first electrode and the side surface of the second electrode and between the first electrode and the substrate; exhausting the first gas away from the substrate along the second side surface; and maintaining a pressure of the first gas in the processing chamber of between about 50 Pascals and 2,000 Pascals to plasma deposit the thin film on the substrate; and providing AC power from a supply to at least one of said at least two electrodes to form plasma adjacent at least said bottom and first sides of said first electrode under conditions that cause ion bombardment of the substrate during deposition of said thin film on the substrate.