--- title: Understanding Potential Sources of Contamination and Developing Targeted Filtration Solutions in 30% H2O2 description: Discover how hybrid metrology and targeted filtration improve purity in 30% hydrogen peroxide for semiconductor manufacturing. image: https://blog.entegris.com/hubfs/blog-hero-filtration-solutions-hydrogen-peroxide-14089-1918x545.jpg --- [![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 ## Understanding Potential Sources of Contamination and Developing Targeted Filtration Solutions in 30% H2O2 - [Semiconductor Manufacturers (70)](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 (5)](https://blog.entegris.com/tag/advanced-packaging) - [Corporate (2)](https://blog.entegris.com/tag/corporate) [All](https://blog.entegris.com/) [mailto:solutions@entegris.com](mailto:solutions@entegris.com) [![](https://blog.entegris.com/hubfs/Blog/Arrow%20Left.png)All Posts](https://blog.entegris.com) # Understanding Potential Sources of Contamination and Developing Targeted Filtration Solutions in 30% H2O2 - [Tweet](https://twitter.com/share) Understanding potential sources of contamination and developing targeted filtration solutions in 30% H2O2 Demand for ultra-pure chemicals—especially hydrogen peroxide (H₂O₂)—has never been higher as defect tolerances tighten with more complex IC designs. H₂O₂ is critical in wet etch, clean, and chemical mechanical polishing (CMP) processes, but its strong oxidizing nature and diverse contamination profile make effective filtration both essential and challenging. Hydrogen peroxide used in semiconductor manufacturing contains a complex mixture of contaminants which can originate from raw materials, production processes, or even packaging/handling materials, and these contaminants can be in dissolved or solid/semi-solid forms in a variety of forms/sizes: - Hard particles (inorganic, organic) - Soft particles (gels and polymers) - Dissolved ions (cations and anions) - Organics (residues, volatiles and semi-volatiles) Objectives of the study 1. Utilizing a hybrid metrology approach to understand the variability within the same batch of electronic grade H2O2 due to its packaging containers. 2. Leveraging the hybrid metrology approach to evaluate the effectiveness of standard nanoparticle retention tests in predicting performance of two PTFE membranes in filtering contaminants natively present in 30% H2O2. ![bottle-to-bottle-variaton-filtration-solutions-hydrogen-peroxide-14089-1](https://blog.entegris.com/hs-fs/hubfs/bottle-to-bottle-variaton-filtration-solutions-hydrogen-peroxide-14089-1.jpg?width=421&height=343&name=bottle-to-bottle-variaton-filtration-solutions-hydrogen-peroxide-14089-1.jpg) Findings Packaging containers have a significant impact on final chemical quality – the testing highlighted that despite being sourced from the same manufacturing batch, there were significant differences in the final material when analyzed by a suite advanced metrology tool, each screening for different type of contaminant of concern for semiconductor manufacturing process. The variability in the final material is most likely due to leaching from the packing container (HDPE) over the duration of storage and transport. For the study on filtration, it was observed that depending on the standard particle used, there can be some guidance discerned on filtration efficiency of membranes. But these standard particles are not representative of the contamination natively present in these semi-grade chemicals. With the analysis of the chemicals using a combination of advanced analytical techniques, pre and post filtration - A more complete picture can be developed of what each filter is really removing. By gathering and reviewing this type of data early in the filter selection process – Entegris can help provide optimized filter recommendations that target the true contaminants of concern at various points of filtration.  Watch Lead Author, Kusum Maharjan describes the study.    **To read the full study, download the [Tech Note summary](https://www.entegris.com/content/dam/web/resources/technical-papers/techpaper-hybrid-metrology-approach-to-holistic-fixation-solutions-14087.pdf) or [contact us](https://www.entegris.com/en/home/customer-service/contact-us.html) to learn more with the Entegris experts.** ![Entegris](https://blog.entegris.com/hubfs/Logo_transparent.png) ###### Entegris - Recent - Popular - Categories [Revisiting EUV Reticle Pod Particle Generation](https://blog.entegris.com/revisiting-euv-reticle-pod-particle-generation) Sep, 2026 [What Changes When High-Viscosity Materials Become Interface-Defining?](https://blog.entegris.com/what-changes-when-high-viscosity-materials-become-interface-defining) Sep, 2026 [From Lab to Fab: Capturing the Uncatchable in CMP Filtration](https://blog.entegris.com/from-lab-to-fab-capturing-the-uncatchable-in-cmp-filtration) Aug, 2026 [What a Decade of Photochemical Purification Taught Us as EUV Scaled](https://blog.entegris.com/what-a-decade-of-photochemical-purification-taught-us-as-euv-scaled) Aug, 2026 [When Interfaces Carry the Outcome in Advanced Packaging](https://blog.entegris.com/when-interfaces-carry-the-outcome-in-advanced-packaging) Aug, 2026 [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 [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 [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 [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 [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 [New Materials: Smoothing the Transition to Molybdenum](https://blog.entegris.com/new-materials-smoothing-the-transition-to-molybdenum) Sep, 2023 [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 [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 [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 ### Lists by Topic - 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