Patent ID: 8932097
Filing Date: 2015-01-13
Classification: G03F,H01L

Abstract:
1. A method for forming an insulating pattern, comprising: forming a first organic film having a negative photosensitivity over a substrate; selectively exposing a first region of the first organic film to light through a light-exposure mask; removing part of the first organic film, which is not exposed to light, to form a first portion of an insulating pattern; forming a second organic film having a negative photosensitivity over the first portion; selectively exposing a second region of the second organic film to light through the light-exposure mask, wherein the second region partly overlaps with the first portion; and removing part of the second organic film, which is not exposed to light, to form a second portion of the insulating pattern over the first portion, wherein the second portion projects beyond the first portion in a direction parallel to the substrate.