A PLASMA ENHANCED ATOMIC LAYER DEPOSITION SYSTEM

摘要

A plasma enhanced atomic layer deposition (PEALD) system includes a processing chamber defining an isolated processing space within the processing chamber, and a substrate holder provided within the processing chamber and configured to support a substrate. A first process material supply system is configured to supply a first process material to the processing chamber, a second process material supply system is configured to supply a second process material to the processing chamber and a power source is configured to couple electromagnetic power to the processing chamber. A contaminant shield is positioned along a periphery of the substrate holder and configured to impede external contaminants that permeate the chamber from traveling to a region of the substrate holder, wherein the film is formed on the substrate by altematingly introducing the first process material and the second process material.