Invention Grant
- Patent Title: Selective liquiphobic surface modification of substrates
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Application No.: US16865159Application Date: 2020-05-01
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Publication No.: US11574805B2Publication Date: 2023-02-07
- Inventor: Jinhua Dai , Joyce A. Lowes , Reuben Chacko
- Applicant: Brewer Science, Inc.
- Applicant Address: US MO Rolla
- Assignee: Brewer Science, Inc.
- Current Assignee: Brewer Science, Inc.
- Current Assignee Address: US MO Rolla
- Agency: Hovey Williams LLP
- Main IPC: H01L21/02
- IPC: H01L21/02 ; C08F220/68 ; H01L23/31 ; H01L23/29 ; C09D133/16

Abstract:
Materials and methods for modifying semiconducting substrate surfaces in order to dramatically change surface energy are provided. Preferred materials include perfluorocarbon molecules or polymers with various functional groups. The functional groups (carboxylic acids, hydroxyls, epoxies, aldehydes, and/or thiols) attach materials to the substrate surface by physical adsorption or chemical bonding, while the perfluorocarbon components contribute to low surface energy. Utilization of the disclosed materials and methods allows rapid transformation of surface properties from hydrophilic to hydrophobic (water contact angle 120° and PGMEA contact angle) 70°. Selective liquiphobic modifications of copper over Si/SiOx, TiOx over Si/SiOx, and SiN over SiOx are also demonstrated.
Public/Granted literature
- US20210082683A1 SELECTIVE LIQUIPHOBIC SURFACE MODIFICATION OF SUBSTRATES Public/Granted day:2021-03-18
Information query
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