Precision Nano-Grade Filtration99.41% at 5nm — Verified, Not Claimed
JIUNYUAN Technology focuses on semiconductor- and pharma-grade liquid filtration. From pleated and capsule filters to activated carbon, depth filters, hollow fibers, filter bags and housings, we offer a complete product line plus validation and PTFE reclaim services.
About JIUNYUAN
Core team members each bring 10+ years in the semiconductor filter industry.
Membrane Basics: PTFE & PP
Two media with distinct strengths. PTFE for extreme chemical compatibility and high temperature; PP for cost and sustainability. Start selection from the fluid and the temperature.
PTFE
Waterproof-breathable, naturally hydrophobic, high temperature rating, outstanding corrosion resistance
PP
Cost advantage, eco-friendly, rated to 80°C, adequate chemical resistance
Hydrophilic Membrane
Wets spontaneously with water, or under pressure — e.g. PES membrane, surface-modified hydrophilic PTFE.
Hydrophobic Membrane
Does not wet spontaneously with water — e.g. PTFE membrane, UPE membrane.
Liquid Filtration Product Line
Pleated Cartridge Filters
Large surface-area pleated cartridges in PES, PTFE, PVDF, PP, Nylon66 and UPE media for semiconductor, pharma and precision chemical point-of-use filtration.
Disposable & Capsule Filters
Disposable capsule filters for small-batch, high-purity and cross-contamination-sensitive applications in PES, PTFE, PVDF and Nylon66 media.
Semiconductor Process Filtration
Filtration solutions organised by fab process step — wet etch & clean, CMP slurry and ultrapure water — all built on the JIUNYUAN in-house part-number scheme.
Activated Carbon Filters
Activated carbon block, fiber and cloth cartridges for organic removal in water treatment, solvent purification and odor control.
Depth Filters
PP melt-blown depth cartridges with high dirt-holding capacity and long service life, ideal for high-flow pre-filtration and UPW systems.
Hollow Fiber Membrane Filters
Hollow fiber membranes offer ultra-high surface area with low pressure drop for UPW, biopharma and high-flow applications.
Filter Membranes & Syringe Filters
Disc membranes, syringe filters and coupon media for analytical lab sample prep and QC processes.
Filter Bags
Liquid filter bags including standard and absolute-rated bags plus anode bags for plating — ideal for high-flow pre-filtration.
Filter Housings
PFA fool-proof lock housings and multi-bag housings paired with matching cartridge and bag systems.
Validation & Reclaim Services
Filter retention validation, metal and organic cleanliness analysis, ICP-MS testing and PTFE filter reclaim services.
PFA-Lined Valves & Fittings
PFA-lined valves, fittings and hoses: a 316L stainless shell carries pressure and piping loads while the wetted surface is continuous high-purity PFA. Flanged and Tri-Clamp series for fab CDS, wet processing and pharmaceutical lines.
Advanced Semiconductor-Grade PP Membrane Cartridge
Ultra-high-efficiency PP membrane cartridge line. Industry-leading GNP 5nm retention data, third-party certified by ITRI.
Gold (ion) challenge concentration into the system: 500 ppt
* Three bottles sampled both upstream and downstream; mean and standard deviation calculated.
- Name
- Nano-grade PP advanced membrane 5nm cartridge
- Brand
- JIUNYUAN
- Rating
- 5nm
- Format
- 10" cartridge, 2-222 flat
- Media
- PP
- Application
- Point-of-use filtration and raw-material pre-filtration for FEOL chemicals
- Condition
- Freshly manufactured cartridge (new)
Products & Services
Pleated & Capsule Filters
Pleated and capsule filters in PES, PTFE, PVDF, Nylon66 and UPE media, with pore ratings from 0.01μm to 10μm, for semiconductor wet processes, pharma and precision chemicals.
- PES Pleated
- PTFE Capsule
- UPE Semi-grade
- Nano Filters
Depth, Carbon & Bag Filters
PP melt-blown depth filters, activated carbon cartridges and absolute-rated filter bags for high-flow pre-filtration and organic removal.
- PP Melt-blown
- Activated Carbon
- Absolute Filter Bags
- Anode Bags
Validation & Reclaim
Filter efficiency validation, metal/organic cleanliness analysis, ICP-MS testing, particle challenge tests and PTFE filter reclaim for total cost reduction.
- Retention Testing
- ICP-MS Analysis
- Extraction Tests
- PTFE Reclaim
End-to-End Micro-Contamination Consulting
From applications engineering to contract testing and knowledge transfer — helping customers get micro-contamination control right.
Applications Engineering
- Metal, organic and particle removal efficiency testing of filters across acids, bases and organic solvents
- Optimizing the overall filtration and purification flow to reduce contamination and defects
- Cost evaluation of filter compatibility in wet etch, clean and photoresist process chemicals
Analysis & Contract Testing
- Extraction and retention testing of new/used filters and process components (tubing, packaging)
- Contaminant detection services and general contract laboratory services
Knowledge Transfer
- Qualitative and quantitative method development and transfer
- Helping laboratories develop innovative measurement techniques
- Optimizing 4M1E (man, machine, material, method, environment) for micro-contamination metrology reliability
- Micro-contamination control courses, training and consulting
Full Analytical Scope
Delivered through our own laboratory together with major analytical laboratories nationwide.
Liquid Filtration Experts For Semiconductor & Biopharma
JIUNYUAN Technology specializes in high-purity liquid filtration products and validation services, delivering optimized solutions for semiconductor wet processes, biopharma, precision chemicals and UPW systems.
We distribute and develop Semi-grade and Pharma-grade filters covering PES, PTFE, PVDF, Nylon66, UPE and activated carbon, supported by our in-house lab for retention testing, metal/organic cleanliness analysis and PTFE filter reclaim.
Learn More
Why JIUNYUAN Technology
Technical Articles
Material selection, retention ratings, cleanliness validation — the things worth settling before you buy.
99.41% at 5 nm: Reading a Gold Nanoparticle Challenge Test on a PP Membrane Filter
Does a filter labeled 5 nm really stop 5 nm particles? JIUNYUAN’s advanced PP membrane filter, third-party certified by ITRI, retains 99.41% of 5 nm gold nanoparticles and 99.08% at 20 nm. This article walks through the test conditions, converts retention to penetration and LRV, explains why 20 nm reads slightly lower, and lists six questions to ask before comparing retention claims.
Filter Selection for Hot Phosphoric Acid and SPM: Why All-Fluoropolymer Construction Matters
Hot phosphoric acid for nitride etch and SPM for resist strip are two of the harshest wet-process chemistries. A PTFE membrane is not enough on its own — if the hardware, end caps or O-rings fail, the whole filter fails. Using a chemical compatibility chart and real all-fluoropolymer ratings, this article covers pressure derating at temperature, cold-start viscosity, SPM outgassing and dewetting, and a selection checklist.
Can a Reclaimed PTFE Filter Match a New One? 10 nm New-vs-Reclaimed Test Data
Can a used PTFE filter be cleaned back to new-part performance? Measured on a 10 nm PTFE filter: 5 nm GNP retention 99.4% vs 99.3%, NVR 3.5 vs 1.8 mg/device, and 23-metal extraction 330.5 vs 353.2 ng/device. This article reads each metric, explains what the four-module, nine-step reclaim flow removes, which filters qualify, and where reclaimed filters pay off.
Why Lithography Uses UPE Membranes: Gels, Extractables and Rating Selection for Photoresist
Photoresist filtration is not only about hard particles — deformable polymer gels and microbubbles matter too. UPE (ultra-high molecular weight polyethylene) membranes offer low extractables and ratings from 2 nm to 0.2 µm, making them a common choice for lithography point-of-use filtration. This article covers UPE material properties, how it pairs with Nylon 66, the pressure-drop cost of finer ratings (2 nm is about 9× 50 nm), and usage limits including 40 °C, pre-wetting and solvent exchange.
Endotoxin Filtration in WFI Manufacturing: Regulatory Requirements and Validation Workflow
Water for Injection (WFI) is the most stringently controlled water grade in pharmaceutical manufacturing, with all three major pharmacopeias (USP/EP/JP) requiring endotoxin ≤ 0.25 EU/mL. This article compares the evolving regulatory standing of distillation vs. membrane-based WFI production routes (EP 9.0 accepting membranes; JP still requiring distillation), details the four-phase DQ/IQ/OQ/PQ validation sequence, sterilizing filter pre-use/post-use integrity testing obligations, and 21 CFR Part 11 ALCOA+ data integrity requirements, with a curated list of the most common FDA/EMA inspection findings and their corrective actions.
Hollow Fiber Membranes for Precision Chemical Filtration: Advantages and Hard Limits
Hollow fiber membranes offer chemical process engineers more than 10× the filtration area of pleated cartridges in the same housing, low transmembrane pressure, and in-line integrity testing capability. This article examines inside-out versus outside-in flow direction selection, UF (1–100 nm) and MF (0.1–0.45 µm) pore size distinctions, and four hard operational limits: high-solids fiber plugging, swelling-prone solvent incompatibility, backpressure surge fiber rupture, and dead-end concentrate build-up — with a detailed scenario table matching chemical applications to the correct filtration approach.
Frequently Asked Questions
What liquid filtration products does JIUNYUAN offer?
We offer nine product categories: pleated filters, disposable/capsule filters, activated carbon, depth filters, hollow fiber membranes, membrane & micro filters, filter bags, filter housings, and validation & reclaim services — covering pre-filtration through sterilizing-grade applications.
How do Semi-grade filters differ from industrial filters?
Semi-grade filters are designed for semiconductor wet chemicals and UPW systems. They must pass metal ion, TOC, particle and extractable cleanliness validation. Our Semi-grade portfolio is supplied with full cleanliness documentation.
Do you provide third-party validation or testing?
Yes. Our in-house lab runs particle challenge testing, ICP-MS metal analysis, organic extraction and customized test protocols to evaluate filter performance and cleanliness.
How does the PTFE filter reclaim service work?
We clean and validate spent PTFE filters with a full cycle of inspection, reclaim, cleanliness verification and return report — reducing procurement cost and supporting sustainability.
Need a Liquid Filtration Solution?
Whether you need standard cartridges, customized validation or PTFE reclaim, our team will tailor the right solution.