Patent ID: 8828843
Filing Date: 2014-09-09
Classification: H01L

Abstract:
1. A method of manufacturing an isolation structure comprising: forming a laminate structure on a substrate; forming a plurality of trenches in the laminate structure; performing a pretreatment process to form a hydrophilic thin film having oxygen ions on the inner wall of the trenches, wherein the pretreatment process is conducted at about 470° C. to 490° C. for approximately 30 to 50 seconds; filling spin-on-dielectric (SOD) materials into the trenches, wherein the hydrophilic thin film having oxygen ions is formed to change the surface tension of the inner wall of the trenches to increases the fluidity of the SOD materials; and performing a curing process that converts the hydrophilic thin film having oxygen ions and the SOD materials into a silicon oxide layer, wherein the hydrophilic thin film provides oxygen ions in the conversion.