PULUODY PLD-FX-801ZX Online Slurry Particle Counter

Overview

The PULUODY PLD-FX-801ZX Online Slurry Particle Counter is an industrial-grade, dual-mode optical particle counter engineered for real-time, continuous monitoring of large-particle contamination in semiconductor chemical mechanical planarization (CMP) slurries and ultra-pure process liquids. It operates on the complementary physical principles of light obscuration (LO) and light scattering (LS), enabling high-fidelity discrimination and quantification of particulate contaminants ≥0.5 µm in critical dispersions such as silica- and alumina-based slurries. In CMP processes, particles exceeding 1.0 µm are primary contributors to micro-scratches and yield-limiting defects on silicon wafers; therefore, precise large-particle count (LPC) measurement at the point-of-use (POU) is mandated by industry quality control protocols. The PLD-FX-801ZX integrates a proprietary 8th-generation dual-laser narrow-beam sensor architecture, ensuring stable signal-to-noise ratio across dynamic slurry viscosities and refractive index variations—without requiring sample dilution under standard operating conditions.

Key Features

• Dual-detection optical engine combining light obscuration and forward-angle light scattering for cross-validated particle sizing and counting
• 8th-generation dual-laser narrow-beam sensor with optimized beam collimation and photodetector array geometry for improved resolution in the 0.5–100.0 µm range
• Integrated precision metering pump with volumetric accuracy <±1% and flow stability suitable for inline installation in closed-loop slurry recirculation systems
• Configurable detection thresholds: user-defined sub-ranges including 1–100 µm, 4–70 µm (c), or 0.1 µm (c) for application-specific sensitivity tuning
• Real-time analog output (4–20 mA) with programmable alarm thresholds for integration into SCADA, DCS, or MES platforms
• Touchscreen HMI with color LCD interface and optional wireless keyboard/mouse support for local operation and diagnostics
• Modular design supporting both online (permanent pipe-mounted) and offline (portable benchtop) configurations without hardware modification

Sample Compatibility & Compliance

The PLD-FX-801ZX is validated for use with aqueous and low-viscosity non-aqueous slurries common in semiconductor front-end manufacturing—including SiO₂, Al₂O₃, CeO₂, and colloidal silica dispersions—as well as ultrapure water (UPW), electronic-grade solvents, and photoresist developers. Its fluidic path is constructed from chemically inert, low-particulate-leaching materials compliant with SEMI F57 and ASTM D5127 standards for particle-counting instrumentation in microelectronics. Calibration traceability follows JJG 1061 (Chinese national metrological verification regulation) and ISO 21501-4 for liquid-borne particle counters, with optional NIST-traceable latex sphere validation kits available. The system supports audit-ready data logging aligned with GLP and GMP documentation requirements, including time-stamped event logs, calibration history, and operator authentication records.

Software & Data Management

The embedded V8.3 Analysis & Calibration Platform provides fully segregated modules for measurement acquisition, statistical analysis, and metrological calibration—eliminating software-induced interference between operational and compliance-critical functions. Data export supports CSV, PDF, and XML formats compatible with LIMS and enterprise analytics tools. All measurement sessions include automatic timestamping, sample ID tagging, and configurable reporting per ISO 4406, NAS 1638, or custom contamination grading schemes (e.g., particles/mL at specified size thresholds). Audit trail functionality meets FDA 21 CFR Part 11 requirements for electronic records and signatures when deployed in regulated environments.

Applications

• Point-of-use (POU) monitoring of CMP slurry final-out streams to detect >1.0 µm particles prior to wafer contact
• Slurry qualification screening—differentiating “good” vs. “bad” batches based on LPC profiles and temporal trend analysis
• In-line monitoring of UPW distribution loops in fab utilities to verify filter integrity and detect membrane breaches
• Electronic chemical purity assurance for etchants, cleaners, and adhesion promoters used in advanced packaging and MEMS fabrication
• Process validation and troubleshooting during slurry formulation, filtration optimization, and storage tank integrity assessment

FAQ

What particle size ranges does the PLD-FX-801ZX support for routine CMP slurry analysis?
Standard operation covers 0.5–100.0 µm; however, users may configure dedicated sub-ranges such as 1–100 µm or 4–70 µm (c) to match specific defect-risk thresholds defined by internal process control limits.
Can the instrument be integrated into existing factory automation systems?
Yes—it features a 4–20 mA analog output with programmable alarm triggers and Modbus TCP optional firmware, enabling direct connectivity to PLCs, DCS, and centralized monitoring dashboards.
Is calibration traceable to international standards?
Calibration is traceable to JJG 1061 and ISO 21501-4; NIST-traceable polystyrene latex standards (PSL) are supported for on-site verification and periodic revalidation.
Does the system require offline dilution for high-concentration slurries?
No—the integrated dual-mode optical design and precision flow control enable accurate counting up to 1000 particles/mL without manual dilution; optional auto-dilution modules are available for extreme concentration scenarios.
How is data security and regulatory compliance ensured in production environments?
The V8.3 platform enforces role-based access control, encrypted data storage, and full electronic audit trails—including calibration events, parameter changes, and report generation—aligned with 21 CFR Part 11 and EU Annex 11 expectations.