Photoresist resin composition and method of forming patterns by using the same

US9017925B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9017925-B2
Application numberUS-201113224935-A
CountryUS
Kind codeB2
Filing dateSep 2, 2011
Priority dateMar 22, 2011
Publication dateApr 28, 2015
Grant dateApr 28, 2015

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Abstract

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A method for forming a pattern includes forming a photosensitive film by coating a photosensitive resin composition on a substrate, exposing the photosensitive film to light through a mask that includes a light transmission region and a non-light transmission region, coating a developing solution on the photosensitive film, and forming a photosensitive film pattern by baking the photosensitive film, wherein the photosensitive resin composition includes an alkali soluble base resin, a photoacid generator and a photoactive compound.

First claim

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What is claimed is: 1. A photosensitive resin composition, comprising: an alkali soluble base resin; a photoacid generator; a photoactive compound; and a phenol-based compound including a hydrophobic group, wherein the alkali soluble base resin is a tandem type resin and wherein the tandem type resin includes a mixture of a high molecular weight resin with a molecular weight of 5000 g/mol or more, a low molecular weight resin with a molecular weight of 500 g/mol or less, a…

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What does patent US9017925B2 cover?
A method for forming a pattern includes forming a photosensitive film by coating a photosensitive resin composition on a substrate, exposing the photosensitive film to light through a mask that includes a light transmission region and a non-light transmission region, coating a developing solution on the photosensitive film, and forming a photosensitive film pattern by baking the photosensitive …
Who is the assignee on this patent?
Kim Jeong Won, Ju Jin Ho, Lee Jong Kwang, and 3 more
What technology area does this patent fall under?
Primary CPC classification G03F7/0226. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Apr 28 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).