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In the world of precision manufacturing, visible dust and invisible static electricity together pose the ultimate challenge to yield and reliability. We are committed to becoming your “strategic defense partner” in your production environment, providing end-to-end cleanroom and electrostatic management solutions, from personnel equipment and work interfaces to direct contact surfaces, to isolate systemic risks from critical processes.
Applications of cleanroom wipes and cleanroom paper in the precision instrument industry
| Item | Specific Content & Execution Standards |
|---|---|
| Core Challenges | 1. Mixed Contamination: Environments vary; oil, dust, etc. 2. Internal Cleaning: Cleaning components in confined spaces during assembly/repair. 3. ESD Sensitivity: Some sensors (e.g., MEMS) are ESD-sensitive. |
| Protection Goals | 1. Functional Reliability: Ensure sensors, bearings, guides function post-cleaning. 2. Adaptive Cleaning: Match method to material (metal, ceramic, glass) and contaminant (oil, dust, fingerprints). 3. Localized High-grade Control: Establish local clean zones (e.g., benches) at key stations. |
| Product Specifications | 1. Wipes/Swabs: Provide multiple grades/sizes of wipes and precision swabs. 2. ESD Products: Use ESD mats and grounded wrist straps. |
| Operating Procedures | 1. Tiered Cleaning: Use standard wipes for exteriors; use high-grade wipes/solvents for internal optics in a clean bench. 2. Tool Management: Use color-coded tools for different zones to prevent cross-contamination. |
| Responsibilities | 1. Assembly/Service: Execute cleaning. 2. Process Engineering: Develop detailed cleaning manuals. 3. Test: Post-cleaning functional verification. |
| Optimization & Audit | 1. Root Cause Analysis (RCA): Investigate if failures link to cleaning/ESD. 2. Customer Feedback Review: Review complaints about product cleanliness. |
Applications of anti-static systems in automotive electronics and new energy
| Item | Specific Content & Execution Standards |
|---|---|
| Core Challenges | ESD Damage: Chips in ECUs/sensors are vulnerable, causing latent failures. 2. Metal Dust: Conductive copper/aluminum dust from electrode slitting/coating can cause short circuits and thermal runaway. 3. Chemical Exposure: Some areas (e.g., electrolyte filling) have corrosive chemicals. |
| Protection Goals | 1. EPA Zones: Establish IEC 61340-5-1 compliant EPA (ESD Protected Area) for electronics. 2. Dust Control: Control dust, especially conductive dust, in electrode manufacturing. 3. Chemical Resistance: Consumables must withstand specific chemicals (e.g., electrolyte). |
| Product Specifications | 1. ESD Wipes: For cleaning PCBs/battery parts; must be static-dissipative and low-linting. 2. Full ESD Kit: Mandatory full-body suits, shoes, caps, wrist straps with continuous monitors. |
| Operating Procedures | 1. EPA Management: All personnel must pass grounding test; use shielded/conductive containers. 2. Dust-specific Cleaning: Use HEPA vacuums and ESD wipes in battery areas. Never use compressed air. 3. Chemical Spills: Clean spills with chemical-resistant wipes per hazardous material protocol. |
| Responsibilities | 1. Production Safety: Manage EPA and safety rules. 2. Battery/Equipment Shop: Control dust and environment. 3. Reliability Lab: Perform ESD audits and battery safety tests. |
| Optimization & Audit | 1. Daily Grounding Check: Documented check of all station grounds. 2. Monthly Safety Audit: Comprehensive ESD and dust control audit, tied to performance. |
Points to note in semiconductor and integrated circuit applications
| Item | Specific Content & Execution Standards |
|---|---|
| Core Challenges | Particle Contamination: Particles as small as tens of nanometers can cause circuit shorts or defects. Electrostatic Discharge (ESD): Instantaneous ESD can breach oxide layers, causing latent or immediate damage. Chemical Residue: Residual cleaning solvents may corrode delicate structures. |
| Protection Goals | Particle Control: Maintain ISO Class 1-3 cleanliness in critical areas (e.g., lithography). ESD Control: Ensure worksurface static dissipation time <1 second, human body voltage <100V. Zero Residue: No fiber shedding or chemical solvent residue post-cleaning. |
| Product Specifications | Cleanroom Wipes: Must use polyester microfiber with laser or ultrasonic sealing. Grade must match Class 10 or higher, with low ion extractables and low NVR. ESD Garments: Use full-body suits with surface-to-surface resistance between 10^5 – 10^9 Ω, compliant with ESD S20.20. Must form a complete system with ESD shoes, caps, and gloves. |
| Operating Procedures | Wiping Protocol: Use a unidirectional, overlapping wipe. Use a fresh, unused wipe for each wafer or reticle. Gowning Protocol: Don garments in specified order in airlock; pass daily test with a human body resistance tester. Replacement Frequency: Wipes are single-use. ESD suits changed per shift, professionally laundered 1-2 times/week. |
| Responsibilities | Production: Execute procedures. Process/Equipment: Define/update cleaning specs. Quality: Audit (particle counts, ESD tests) and monitor yield. |
| Optimization & Audit | Monthly Audit: Random particle counts at key stations. Data Analysis: Correlate consumable usage with batch yield for optimization. |
Considerations for LCD panel and OLED display industry applications
| Item | Specific Content & Execution Standards |
|---|---|
| Core Challenges | Visual Defects: Particles cause bright/dark spots, scratches. Film Layer Damage: Polarizers, OCA, flexible substrates are easily scratched or attract dust via static. ESD Interference: ESD attracts dust and disrupts automated assembly. |
| Protection Goals | Zero Foreign Matter: Achieve “zero foreign object” control at Module and Lamination stations. Zero Scratch: No new scratches from cleaning. Static Elimination: Control workspace static voltage within ±50V. |
| Product Specifications | Cleanroom Wipes: Premium microfiber (e.g., Polyamide) with high absorbency and low friction. Use special pre-wetted wipes (non-alcohol) for OCA/polarizer cleaning. ESD Garments/Finger Cots: Full suits plus ESD finger cots for touch panel assembly. |
| Operating Procedures | Screen Cleaning: Use “spray-and-pull” method—spray cleaner on wipe, then wipe unidirectionally. Never spray directly on screen. Environmental Control: Install ionizers at entrances of laminators/bonders. Visual Inspection: 100% inspection under yellow light with particle inspection lamps. |
| Responsibilities | Assembly Line: Execute cleaning/inspection. QA: Defect classification/analysis. Facilities: Maintain ionizers/ESD equipment. |
| Optimization & Audit | Defect Pareto Analysis: Weekly analysis to target improvements. Supplier Audit: Regular incoming inspection of wipes for fiber shedding. |
Precision optics and optical applications
| Item | Specific Content & Execution Standards |
|---|---|
| Core Challenges | Coating Damage: AR, mirror coatings on lenses/filters are fragile. Residual Contamination: Fingerprints, oils, or solvent residue permanently affect performance. Signal Interference: Internal dust on sensors/lasers causes drift or power loss. |
| Protection Goals | Non-destructive Cleaning: No visible coating damage, no transmittance loss. Molecular-level Clean: Remove organic residue to “optical clean” standard. Stable Environment: Maintain constant temp/humidity to prevent condensation. |
| Product Specifications | Wipes/Paper: Must use optical-grade wipes (low Na, S) or pure pulp cleanroom paper. For high-end lenses, consider imported chamois or swabs. Cleaning Solvents: Match coating type; use analytical grade IPA, acetone, or specialty cleaners. |
| Operating Procedures | Cleaning Sequence: Strict “Blow, Brush, Wipe”—use air dusters, then optical brushes, then wipe with solvent-dampened wipes in a spiral motion from center out. Environment: Perform inside a Clean Bench with dedicated tools. |
| Responsibilities | Optics Assembly: Execute cleaning. R&D/Lab: Define protocols for different components. QC: Inspect surfaces with interferometers, microscopes. |
| Optimization & Audit | Sampling Test: Sample cleaned optics to check scatter/absorption loss. SOP Review: Quarterly review/update based on new products/coatings. |
Points to note in biopharmaceutical and medical device industry applications
| Item | Specific Content & Execution Standards |
|---|---|
| Core Challenges | Microbial Contamination: Bacteria/endotoxins affect drug safety/device sterility. Cross-Contamination: Residue between product changeovers. Traceability: Must meet strict GMP/FDA audit requirements. |
| Protection Goals | Sterility Assurance: Achieve aseptic processing in Grade A/B zones. Effective Disinfection: Surface microbial counts meet standards post-disinfection. Compliance & Traceability: All consumables have full CoC and sterilization reports. |
| Product Specifications | Sterile Wipes/Paper: Must be gamma-irradiated, individually packed. Material must have excellent chemical resistance (to alcohols, hydrogen peroxide, quats). Sterile ESD Garments: For aseptic filling, fabric must meet clean, ESD, and sterile standards. |
| Operating Procedures | Disinfection Protocol: Two-step “Clean-Disinfect”—first wipe with sterile water to remove residue, then wipe with disinfectant, ensuring sufficient contact time. Aseptic Gowning/Behavior: Follow strict gowning order, minimize movement to reduce particles/aerosols. |
| Responsibilities | Production: Execute SOPs. QC Micro Lab: Perform environmental monitoring (settle plates, surface contact). Compliance: Supplier audit and document control. |
| Optimization & Audit | Trend Analysis: Monthly review of environmental data; investigate deviations. Media Fill Test: Annual simulation to validate aseptic process integrity. |