Invention Grant
- Patent Title: Methods and apparatus for forming resist pattern using EUV light with electric field
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Application No.: US17443741Application Date: 2021-07-27
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Publication No.: US11754925B2Publication Date: 2023-09-12
- Inventor: Bu Geun Ki
- Applicant: SK hynix Inc.
- Applicant Address: KR Gyeonggi-do
- Assignee: SK hynix Inc.
- Current Assignee: SK hynix Inc.
- Current Assignee Address: KR Gyeonggi-do
- Agency: IP & T GROUP LLP
- Priority: KR 20210015733 2021.02.03
- Main IPC: G03F7/20
- IPC: G03F7/20 ; G03F7/00 ; H01L21/027

Abstract:
A method and apparatus for forming a resist pattern may be provided. In the method for forming a resist pattern, a resist layer may be formed on a base layer, an electric field may be applied to the resist layer in a thickness direction of the resist layer, and a portion of the resist layer may be exposed with extreme ultraviolet (EUV) light while applying the electric field. A lithography apparatus for performing the method of forming a resist pattern may include at least an exposure part and an electric field forming part. The exposure part may be configured to expose a portion of the resist layer with extreme ultraviolet (EUV) light. The electric field forming part may be configured to apply an electric field to the resist layer.
Public/Granted literature
- US20220244646A1 METHODS AND APPARATUS FOR FORMING RESIST PATTERN USING EUV LIGHT WITH ELECTRIC FIELD Public/Granted day:2022-08-04
Information query
IPC分类: