Resist composition, method of forming resist pattern, compound, and acid diffusion control agent

US10180625B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10180625-B2
Application numberUS-201715634941-A
CountryUS
Kind codeB2
Filing dateJun 27, 2017
Priority dateOct 6, 2015
Publication dateJan 15, 2019
Grant dateJan 15, 2019

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A resist composition which generates acid upon exposure and exhibits changed solubility in a developing solution under action of acid, the resist composition including a base component (A) which exhibits changed solubility in a developing solution under action of acid, and a compound (D1) represented by general formula (d1), wherein Z − represents an anion having an aromatic ring containing a hydroxybenzoic acid skeleton, provided that at least one hydrogen atom of the aromatic ring has been substituted with a halogen atom; m represents an integer of 1 or more; and M m+ represents an organic cation having a valency of m. Z − (M m+ ) 1,m   (d1)

First claim

Opening claim text (preview).

What is claimed is: 1. A compound represented by general formula (d1-10) shown below: wherein R 201 to R 203 each independently represents an aryl group or an alkenyl group, provided that two of R 201 to R 203 may be mutually bonded to form a ring with the sulfur atom; Rh represents a fluorine atom; and d0 represents an integer of 1 to 4. 2. An acid diffusion control agent comprising a compound of claim 1 .

Assignees

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Classifications

  • Sulfonium compounds · CPC title

  • Salicylic acid · CPC title

  • Salts thereof · CPC title

  • with perfluoro compounds, e.g. for dry lithography (G03F7/0048 takes precedence) · CPC title

  • the macromolecular compound being present in a chemically amplified negative photoresist composition · CPC title

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Frequently asked questions

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What does patent US10180625B2 cover?
A resist composition which generates acid upon exposure and exhibits changed solubility in a developing solution under action of acid, the resist composition including a base component (A) which exhibits changed solubility in a developing solution under action of acid, and a compound (D1) represented by general formula (d1), wherein Z − represents an anion having an aromatic ring containing a …
Who is the assignee on this patent?
Tokyo Ohka Kogyo Co Ltd
What technology area does this patent fall under?
Primary CPC classification G03F7/0045. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jan 15 2019 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).