Invention Grant
- Patent Title: Composition comprising a primary and a secondary surfactant, for cleaning or rinsing a product
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Application No.: US16762275Application Date: 2018-11-26
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Publication No.: US12084628B2Publication Date: 2024-09-10
- Inventor: I Chen Chou , Andreas Klipp , Berthold Ferstl
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Agency: Armstrong Teasdale LLP
- Priority: EP 204225 2017.11.28
- International Application: PCT/EP2018/082551 2018.11.26
- International Announcement: WO2019/105889A 2019.06.06
- Date entered country: 2020-05-07
- Main IPC: C11D1/66
- IPC: C11D1/66 ; C11D1/00 ; C11D1/722 ; C11D1/83 ; C11D3/20 ; C11D3/24 ; C11D3/30 ; G03F7/40 ; H01L21/02 ; C11D1/72

Abstract:
Described is a composition comprising as primary surfactant an ionic compound comprising one or more fluoroalkyl groups and as secondary surfactant at least one non-ionic compound comprising one or more polyalkyloxy and/or polyalkylenoxy groups, for cleaning or rinsing a product, preferably a product used in the semiconductor industry, and a respective use of said composition. Further described is a method of making a cleaned or rinsed product, preferably a product used in the semiconductor industry, comprising a substrate and supported thereon a patterned material layer having line-space structures with a line width of 50 nm or below, comprising the step of cleaning or rinsing said product with the composition of the invention.
Public/Granted literature
- US20230167381A1 COMPOSITION COMPRISING A PRIMARY AND A SECONDARY SURFACTANT, FOR CLEANING OR RINSING A PRODUCT Public/Granted day:2023-06-01
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