Patent ID: 8507372
Filing Date: 2013-08-13
Classification: H01L

Abstract:
1. A method of processing a substrate comprising: performing a first stage of implanting ions of desired species into first and second surfaces of the substrate, the first surface extending in a horizontal direction relative to a plane of the substrate and the second surface extending in a vertical direction relative to the plane of the substrate, wherein amount of the ions of desired species implanted into the first surface is greater than the amount of ions implanted into the second surface; performing a second stage of depositing a first film having a first thickness on the first surface of the substrate; performing a third stage of implanting the ions of desired species into the second surface of the substrate after the second stage, wherein the amount of the ions of desired species implanted into the second surface during the third stage is greater than the amount of the ions of desired species implanted into the first surface during the third stage; and depositing a second film having a second thickness on the second surface of the substrate during the second stage.