--- title: "Filtration Fundamentals II: Membrane DeWetting" description: "Watch as Dr. Aiwen Wu, Senior Applications Engineer, demonstrates the hydrophobic nature of a native PTFE membrane and a surface modified PTFE (non-dewetted) membrane when exposed to DI water and IPA. He also explains what prewetting accomplishes and the benefit of surface modified membranes for use in applications with strong acids, bases, high-temperature water, and surfactants. Runtime: 03:19 mins." image: https://blog.entegris.com/hubfs/av-agreggator-dewetting-10450-770x200.svg --- [![logo-header-desktop](https://blog.entegris.com/hubfs/logo-header-desktop.svg "logo-header-desktop")](https://blog.entegris.com) - [Science & Innovation](https://blog.entegris.com/tag/science-technology#featured) - [Chemical Suppliers](https://blog.entegris.com/tag/chemical-suppliers#featured) - [Logic Manufacturers](https://blog.entegris.com/tag/logic-manufacturers#featured) - [Memory Manufacturers](https://blog.entegris.com/tag/memory-manufacturers#featured) - [Semiconductor Manufacturers](https://blog.entegris.com/tag/semiconductor-manufacturers#featured) - [News](https://www.entegris.com/en/home/about-us/news/media-coverage.html) - [Talent](https://www.entegris.com/careers) - [Resources](https://www.entegris.com/en/home/resources.html) - [Reference Materials](https://www.entegris.com/en/home/resources/reference-materials.html) - [Technical Information](https://www.entegris.com/en/home/resources/technical-information.html) - [About Us](https://www.entegris.com/en/home/about-us/corporate-overview.html) - [Entegris.com](https://www.entegris.com/) - [Careers](https://www.entegris.com/en/home/about-us/careers.html) - [Corporate Overview](https://www.entegris.com/en/home/about-us/corporate-overview.html) - [Events](https://www.entegris.com/en/home/about-us/events.html) - [Investor Relations](https://www.entegris.com/en/home/about-us/investor-relations.html) - [Legal/Trademark Notices](https://www.entegris.com/en/home/about-us/legal-trademark-notices.html) - [Locations](https://www.entegris.com/en/home/about-us/locations.html) - [Services Overview](https://www.entegris.com/en/home/our-science/by-service.html) ![hero-654791312-sized](https://blog.entegris.com/hs-fs/hubfs/hero-654791312-sized.jpg?width=3400&name=hero-654791312-sized.jpg "hero-654791312-sized") # Ensights Science that is transforming lives and enabling the future ## Filtration Fundamentals II: Membrane DeWetting - [Semiconductor Manufacturers (66)](https://blog.entegris.com/tag/semiconductor-manufacturers) - [Science & Innovation (58)](https://blog.entegris.com/tag/science-innovation) - [Logic Manufacturers (41)](https://blog.entegris.com/tag/logic-manufacturers) - [Memory Manufacturers (39)](https://blog.entegris.com/tag/memory-manufacturers) - [Chemical Suppliers (23)](https://blog.entegris.com/tag/chemical-suppliers) - [Materials Solutions (16)](https://blog.entegris.com/tag/materials-solutions) - [Talent (14)](https://blog.entegris.com/tag/talent) - [Advanced Packaging (2)](https://blog.entegris.com/tag/advanced-packaging) - [Corporate (2)](https://blog.entegris.com/tag/corporate) [All](https://blog.entegris.com/) [![](https://blog.entegris.com/hubfs/Blog/Arrow%20Left.png)All Posts](https://blog.entegris.com) # Filtration Fundamentals II: Membrane DeWetting - [Tweet](https://twitter.com/share) Dewetting and non-dewetting are not common terms used every day, yet are vital to the functionality of liquid filters. - Wetting – the process of filling a membrane’s pores with a liquid - Dewetting – the phenomenon where a filter membrane’s pores accumulate air over time, blocking liquid flow - Non-dewetting – a membrane surface that has been modified to maintain wettability over time, even when confronted by outgassing chemistries The terminology aside, the value of a non-dewetting membrane can’t be understated in terms of operational efficiency and effectiveness. A filter that dewets in a particular semiconductor unit process can contribute to an increase in defectivity or a reduction in productivity due to flow loss. **Watch as Dr. Aiwen Wu, senior applications engineer, demonstrates membrane properties designed to address outgassing chemistries. ** **Related: [The Lithographer's Toolkit](https://www.entegris.com/content/en/home/resources/industry-insights/chasing-the-perfect-pattern/lithographers-toolkit.html)** ![Entegris](https://blog.entegris.com/hubfs/Logo_transparent.png) ###### Entegris - Recent - Popular - Categories [Molybdenum’s Role in Ultra-Fast Computing: The Metal Behind the Speed](https://blog.entegris.com/molybdenums-role-in-ultra-fast-computing-the-metal-behind-the-speed) May, 2026 [Effect of POU Filter Pore Size on EUV Bridge Defect Density](https://blog.entegris.com/effect-of-pou-filter-pore-size-on-euv-bridge-defect-density) Apr, 2026 [Hydrogen Halides in Semiconductor Manufacturing: Three Gases, Three Distinct Challenges and Solutions](https://blog.entegris.com/hydrogen-halides-in-semiconductor-manufacturing-three-gases-three-distinct-challenges-and-solutions) Mar, 2026 [Discover EDM-C3® Premium Copper- Impregnated Graphite](https://blog.entegris.com/discover-edm-c3-premium-copper-impregnated-graphite) Feb, 2026 [End-to-End Manufacturing Excellence: Seven Questions Every New (or Growing) Fab Team Should Be Asking](https://blog.entegris.com/end-to-end-manufacturing-excellence-seven-questions-every-new-or-growing-fab-team-should-be-asking) Feb, 2026 [Under Pressure: Solving High Viscosity Material Challenges in Advanced Packaging](https://blog.entegris.com/under-pressure-solving-high-viscosity-material-challenges-in-advanced-packaging) Jan, 2026 [Cleaner Chemistry and Faster Startup with Next Generation Ancillary Photochemical Filters](https://blog.entegris.com/cleaner-chemistry-and-faster-startup-with-next-generation-ancillary-photochemical-filters) Dec, 2025 [Solving Bridge Defects in EUV CAR Resists with Advanced UPE Filtration](https://blog.entegris.com/solving-bridge-defects-in-euv-car-resists-with-advanced-upe-filtration) Dec, 2025 [Building Resilient Infrastructure to Better Serve Our Customers](https://blog.entegris.com/building-resilient-infrastructure-to-better-serve-our-customers) Dec, 2025 [Collaborating to Solve Advanced Packaging Substrate Challenges](https://blog.entegris.com/collaborating-to-solve-advanced-packaging-substrate-challenges) Dec, 2025 [Molybdenum’s Role in Ultra-Fast Computing: The Metal Behind the Speed](https://blog.entegris.com/molybdenums-role-in-ultra-fast-computing-the-metal-behind-the-speed) May, 2026 [Scaling New Heights: How Molybdenum is Revolutionizing 3D NAND Architectures](https://blog.entegris.com/scaling-new-heights-how-molybdenum-is-revolutionizing-3d-nand-architectures) Aug, 2025 [End-to-End Manufacturing Excellence: Seven Questions Every New (or Growing) Fab Team Should Be Asking](https://blog.entegris.com/end-to-end-manufacturing-excellence-seven-questions-every-new-or-growing-fab-team-should-be-asking) Feb, 2026 [Hydrogen Halides in Semiconductor Manufacturing: Three Gases, Three Distinct Challenges and Solutions](https://blog.entegris.com/hydrogen-halides-in-semiconductor-manufacturing-three-gases-three-distinct-challenges-and-solutions) Mar, 2026 [DRAM: Device Fabrication](https://blog.entegris.com/dram-device-fabrication) Jun, 2020 [Collaborating to Solve Advanced Packaging Substrate Challenges](https://blog.entegris.com/collaborating-to-solve-advanced-packaging-substrate-challenges) Dec, 2025 [Under Pressure: Solving High Viscosity Material Challenges in Advanced Packaging](https://blog.entegris.com/under-pressure-solving-high-viscosity-material-challenges-in-advanced-packaging) Jan, 2026 [New Materials: Smoothing the Transition to Molybdenum](https://blog.entegris.com/new-materials-smoothing-the-transition-to-molybdenum) Sep, 2023 [Understanding AMC: The Invisible Threat to Semiconductor Yield and Reliability](https://blog.entegris.com/understanding-amc-the-invisible-threat-to-semiconductor-yield-and-reliability) Oct, 2025 [Cleaner Chemistry and Faster Startup with Next Generation Ancillary Photochemical Filters](https://blog.entegris.com/cleaner-chemistry-and-faster-startup-with-next-generation-ancillary-photochemical-filters) Dec, 2025 ### Lists by Topic - 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