IP Library › Granted Patent US 11,820,840
Granted Patent B2
US 11,820,840 · App. 18/187,584 · Granted Nov 21, 2023

Compound, polymer, pattern forming material, and manufacturing method of semiconductor device

Inventors: Norikatsu Sasao (Kanagawa, JP); Koji Asakawa (Kanagawa, JP); Shinobu Sugimura (Kanagawa, JP)
Assignee: Kioxia Corporation
C08F20/30C07C69/76C08F12/22C09D125/18C09D133/14H01L21/0271
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Quick Facts
Patent No.
US 11,820,840
App. No.
18/187,584
Granted
Nov 21, 2023
Kind
B2
Abstract

A pattern forming material is configured to use for forming an organic film on a film to be processed, patterning the organic film, and then forming a composite film by infiltrating a metallic compound into the patterned organic film. The pattern forming material contains a polymer including a monomer unit represented by a general formula (3) described below, where R 21 is H or CH 3 , each R 22 is a hydrocarbon group of C 2-14 where a carbon is primary carbon, secondary carbon or tertiary carbon, Q is a single bond or a hydrocarbon group of C 1-20 carbon atoms which may include an oxygen atom, a nitrogen atom, or a sulfur atom between carbon-carbon atoms of or at a bond terminal, and a halogen atom may be substituted for the hydrogen atom.

Claims (4)

1. A pattern forming material containing a polymer including a monomer unit represented by a general formula (3) described below,

wherein, R 21 is one of a hydrogen atom, a halogen atom, or a methyl group, and each R 22 independently comprises one of: a hydrocarbon group having 2 to 14 carbon atoms where a carbon is primary carbon, secondary carbon or tertiary carbon, and Q comprises one of: a single bond or a hydrocarbon group having 1 to 20 carbon atoms.

2. The material according to claim 1 , wherein each R 22 independently comprises one of is an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, an s-butyl group, or a t-butyl group.

3. The pattern forming material of claim 1 , wherein Q comprises one of: an oxygen atom, a nitrogen atom, or a sulfur atom between carbon-carbon atoms or at a bond terminal.

Priority Claims (1)
JP 2019-165444 · Sep 11, 2019 · national
Continuity (2)
Division 16814030 · Mar 10, 2020
Related Publication 20230220130A1 · Jul 13, 2023