Patent ID: 8377265
Filing Date: 2013-02-19
Classification: C23C

Abstract:
1. A method of forming an inorganic insulating layer on a substrate, the method comprising: supplying a mixed gas between the substrate and two targets; generating a plasma between the substrate and the two targets, wherein the two targets each comprises a silicon-based material, and the two targets are formed of silicon nitride, the two targets each having a front surface facing the substrate and a rear surface opposing the front surface; generating a magnetic field return path by having opposite magnetic polarity disposed adjacent to the rear surface of each of the two targets to increase density of the plasma by the two targets; and depositing a plurality of ions from the plasma on the substrate, wherein the substrate and the two targets are spaced apart from each other by a distance of 110 cm to 150 cm, wherein the generating a plasma step comprises supplying an AC power across the two targets, wherein each of the two targets is coupled to a corresponding AC electrode of the AC power, and wherein a resistivity of each of the two targets is within a range of about 0 ohm-cm to about 10