Skip to content 
K PURE PTFE Pleated Filter Cartridges
K Pure PTFE Pleated Filter Cartridges: Ultimate Chemical Resistance for Microelectronics
In the high-precision world of semiconductor manufacturing and microelectronics, even the smallest impurity can lead to catastrophic yield loss. K Pure PTFE Pleated Filter Cartridges are engineered to provide an uncompromising contamination barrier.
Constructed with a superior hydrophobic PTFE (Polytetrafluoroethylene) membrane and supported by high-purity PFA (Perfluoroalkoxy) hardware, these cartridges represent the gold standard for filtering aggressive chemicals and ultra-pure solvents.
Engineered for Microelectronics & Wafer Bumping
The K Pure PTFE Pleated Filter Cartridges series is purpose-built for the most demanding “wet bench” and chemical delivery systems:
- Wafer Bumping Mastery: Provides critical filtration for the chemicals used in under-bump metallization and solder bumping processes, ensuring surface integrity.
- Extreme Chemical Compatibility: The PTFE/PFA combination is virtually inert, making these filters resistant to the most aggressive acids, bases, and organic solvents.
- Inherent Hydrophobicity: Naturally repels water, making it the ideal choice for air/gas venting and the filtration of non-aqueous chemicals or photoresists.
- High-Purity Construction: Zero additives, surfactants, or glues. The all-fluoropolymer construction ensures minimal metallic and organic extractables.
Technical Specifications & Advantages of K Pure PTFE Pleated Filter Cartridges
| Feature | K Pure PTFE Performance |
|---|---|
| Membrane Media | Expanded PTFE (ePTFE) |
| Support Hardware | High-Purity PFA |
| Thermal Stability | Maintains integrity at high operating temperatures |
| Surface Properties | Hydrophobic (Naturally water-repellent) |
| Application Suitability | Acids, Bases, Solvents, & Photoresists |
Our Key Features
- Chemical Inertness: Compatible with a broad spectrum of acids, bases, solvents, and aggressive process chemicals.
- Hydrophobic Membrane: Provides effective particle removal in high-purity applications, ensuring minimal contamination.
- Versatile Sizing: Available in lengths ranging from 5” to 40” with various endcap configurations to suit both single- and multi-round filter housings.
- Superior Erosion Resistance: Offers 3.75 times greater water erosion resistance compared to standard PVDF filters, making it ideal for gas pre-filtration, solvent sterilization, and other demanding processes.
- Wide Industry Application: Extensively used in pharmaceutical, food & beverage, chemical, and electronics industries.
- Removal micron rating: 0.01,0.02 (for gas) 0.1,0.22,0.45,1 (for Liquid)
- Maximum Temperature : 800C
Performance Benefits
- Excellent Heat Resistance: Can withstand repeated online steam sterilization and high-pressure disinfection, ensuring long-term operational stability.
- High Interception Efficiency: Ensures reliable filtration performance and consistent product quality.
- Extended Service Life: Designed for durability, reducing replacement frequency and operating costs.
K Pure & Pure Health PTFE Pleated Filter Cartridges Series: Master Comparison Guide
| Feature | Pure Health Dialysis | K Pure Glass Fiber | K Pure Nylon 66 | K Pure PTFE |
|---|---|---|---|---|
| Core Media | Polysulfone (PS) / PES | Borosilicate Glass | Nylon 66 (Polyamide) | PTFE / PFA Support |
| Surface Nature | Hydrophilic (Treated) | Hydrophobic | Naturally Hydrophilic | Highly Hydrophobic |
| Pore Structure | Hollow Fiber | Pleated Depth | Pleated Membrane | Pleated Membrane |
| Retention | 10 kDa – 50 kDa (Toxins) | 1 μm – 25 μm (Absolute) | 0.1 μm – 5 μm | 0.05 μm – 1 μm |
| Sterilization | Single-use Disposable | Autoclavable / Steam | Autoclavable | Autoclavable / Chemical |
| Best For | Hemodialysis / Blood | Gas Vents / Pre-filters | Bio-preps / Solvents | Acids / Wafer Bumping§ |
Frequently Asked Questions (FAQ)
Q: Why is the combination of PTFE Pleated Filter Cartridges and PFA important?
A: PTFE Pleated Filter Cartridges provides the filtration precision, while PFA provides the structural support. Both are fluoropolymers, meaning the entire cartridge can withstand aggressive chemistries that would melt or degrade standard polypropylene filters.
Q: Can these filters be used for aqueous (water-based) liquids?
A: Because the membrane is hydrophobic, it will resist the passage of water unless high pressure is applied (water intrusion pressure). For aqueous solutions, the membrane typically requires pre-wetting with a low-surface-tension solvent like IPA (Isopropyl Alcohol).
Q: What makes these filters suitable for “Wafer Bumping”?
A: Wafer bumping involves sensitive electrochemical processes. The K Pure PTFE Pleated Filter Cartridges ensures that the plating baths and rinse chemicals are free of micro-particulates that could cause “shorts” or structural defects in the micro-bumps.
Q: How does the pleated design impact chemical flow?
A: The pleated geometry maximizes the surface area within a compact cartridge. This allows for high flow rates with a low pressure drop, which is essential for maintaining consistent chemical delivery in automated microelectronics tracks.
Q: Is this filter suitable for gas filtration?
A: Yes. Due to its hydrophobic nature, it is excellent for sterile gas venting and the filtration of compressed air or nitrogen, as it prevents moisture from “blinding” the filter pores.
Q: Which filter is best for high-temperature applications?
A: The K Pure PTFE series is the winner here. PTFE and PFA can withstand much higher temperatures (up to 260°C for the material) compared to Nylon or Polypropylene-based filters.
Q: I need to filter air to keep a tank sterile. Which one is best?
A: Use the K Pure Borosilicate Glass Fiber or PTFE. Both are hydrophobic, so they won’t absorb moisture from the air, which prevents “filter blinding” (where water blocks the air from passing through).
Q: Can I use Nylon 66 for strong acids in microelectronics?
A: No. For strong acids (like Hydrofluoric or Nitric acid used in wafer processing), you must use K Pure PTFE. Nylon will degrade or dissolve in strong acidic environments
Q: Which filter is best for “Bioburden Reduction” in medicine?
A: The K Pure Nylon 66 is excellent for liquid bioburden reduction because of its fine pore size and low extractable profile. For blood-specific filtration, always stay with the Pure Health Dialysis Series.
