Product Introduction
LEFILTER proudly presents the SFP/SFD2860 Ultrafiltration Membrane for Electronic Grade Ultrapure Water, meticulously engineered to meet the exacting purity demands of the semiconductor, photovoltaic, and electronics manufacturing industries. As a high-efficiency alternative to DuPont DOW ultrafiltration modules, this product is crafted to deliver consistent removal of sub-micron particles, bacteria, colloids, and organic matter, achieving water quality standards required for sensitive microfabrication environments.
Leveraging cutting-edge hollow fiber membrane technology and hydrophilic PVDF material, the SFP/SFD2860 ensures ultra-low extractables and excellent chemical resistance, making it ideal for final filtration stages in ultrapure water (UPW) systems. The membrane's high permeability, combined with a compact footprint and minimal fouling tendencies, supports stable production of ultra-high purity water essential for wafer rinsing, photolithography, and precision cleaning processes.
Technical Specifications
Parameter | Value |
---|
Model | SFP/SFD2860 |
Membrane Material | Polyvinylidene Fluoride (PVDF) |
Filtration Mode | Outside-in Hollow Fiber |
Effective Membrane Area | 75 m² |
Nominal Pore Size | 0.03 µm |
Outer Fiber Diameter | 1.3 mm |
Inner Fiber Diameter | 0.7 mm |
Operating Pressure Range | 0.1 – 0.3 MPa |
Maximum Pressure Tolerance | 0.6 MPa |
Operating Temperature Range | 5 – 45°C |
pH Tolerance (continuous) | 3 – 10 |
pH Range (cleaning) | 2 – 12 (short-term: 1–13) |
Backwash Pressure Limit | 0.3 MPa |
Housing Material | UPVC, ABS, or Stainless Steel (custom) |
Flow Configuration | Vertical or Horizontal installation |
Typical Filtrate SDI | ≤ 1.0 |
Bacteria & Particle Rejection | ≥ 99.99% |

This ultrafiltration module is designed for highly regulated production environments where even trace contaminants can compromise yield and performance.
Application Areas
The SFP/SFD2860 Ultrafiltration Membrane is purpose-built for applications where ultrapure water purity is non-negotiable, including:
Semiconductor & Wafer Fabrication: Used in the final polishing stage of UPW systems to eliminate bacterial endotoxins and ultrafine particles that affect chip performance and manufacturing yield.
Flat Panel Display (FPD) Manufacturing: Guarantees particle-free rinse water, preventing defect formation on delicate screen surfaces.
Photovoltaic (PV) Module Production: Delivers consistently clean water for silicon wafer cleaning and coating steps in solar cell manufacturing.
Microelectronics & PCB Assembly: Supports flux-free cleaning and anti-static rinsing operations with consistent ultrapure water delivery.
Laboratory & Pharmaceutical Ultrapure Water Systems: Suitable for high-precision analytical and research environments requiring ultra-low TOC and microbial counts.
By achieving stable and repeatable filtration quality, this membrane helps manufacturers maintain compliance with industry specifications such as ASTM D5127 and SEMI F63.
FAQ
Q1: Can the SFP/SFD2860 module handle continuous operation in high-purity applications?
A1: Yes, the membrane is engineered for continuous duty cycles with minimal fouling risk, and supports periodic backwashing and chemical cleaning to maintain long-term performance.
Q2: What makes this membrane suitable for electronic-grade ultrapure water applications?
A2: Its exceptionally small pore size, high hydrophilicity, and ultra-low TOC leaching ensure the removal of fine particulates, bacteria, and organics that are critical in microelectronics water systems.