POWEREACH FH801 Chip Silver Paste Thickness Measurement System

Overview

The POWEREACH FH801 Chip Silver Paste Thickness Measurement System is a precision optical metrology instrument engineered for non-contact, high-resolution thickness profiling of conductive silver paste layers deposited on semiconductor wafers, lead frames, and other microelectronic substrates. It operates on the principle of focused optical sectioning combined with calibrated CCD-based image analysis—leveraging a 45° oblique illumination geometry to enhance edge contrast and minimize specular reflection artifacts common in highly reflective metallized surfaces. The system integrates a motorized 360° horizontal rotation stage with a 200 mm stainless-steel sample platform, enabling full circumferential scanning and radial symmetry assessment critical for die-attach process validation. Designed specifically for front-end packaging and advanced substrate-level assembly lines, the FH801 supports rapid qualitative and semi-quantitative thickness mapping without destructive cross-sectioning or stylus-based profilometry—reducing measurement-induced damage and improving throughput in QC/QA laboratories and R&D cleanrooms.

Key Features

• Stainless-steel 200 mm diameter sample stage with precision 360° continuous rotation and repeatable angular positioning (±0.1°)
• High-sensitivity USB 3.0 CCD camera with adjustable magnification optics and fixed 45° incident light path optimized for silver paste reflectivity and surface topography contrast
• Optical configuration calibrated for sub-micron lateral resolution and consistent depth-of-field across variable paste thicknesses (typical range: 5–50 µm)
• Integrated real-time image acquisition and thickness estimation algorithm embedded in proprietary Windows-compatible software
• Modular hardware architecture supporting optional upgrades including automated XY translation stage, LED ring illumination control, and environmental enclosure integration
• Compliant with ISO/IEC 17025 traceability framework for measurement uncertainty documentation and calibration record retention

Sample Compatibility & Compliance

The FH801 accommodates standard semiconductor substrates up to 8-inch (200 mm) diameter, including silicon wafers, ceramic substrates, copper lead frames, and organic laminates. It is validated for use with sintered and non-sintered silver pastes exhibiting varying particle size distributions (D50: 0.5–5 µm), binder systems (epoxy, glass frit, or polymer-free), and surface roughness profiles (Ra < 0.8 µm). The system meets mechanical and electromagnetic compatibility requirements per IEC 61326-1:2013 and is suitable for operation in Class 1000 (ISO 6) cleanroom environments. While not certified to SEMI S2/S8, its design aligns with industry-standard safety practices for laboratory-grade electronic assembly metrology equipment. Calibration verification procedures are documented in accordance with ASTM E2523–22 for optical thickness measurement systems.

Software & Data Management

The FH801 operates exclusively via POWEREACH’s dedicated Windows-based application, which provides intuitive workflow navigation, live image preview, manual/automatic region-of-interest (ROI) selection, and thickness histogram generation. All raw images, processed profiles, and metadata—including timestamp, operator ID, stage position, and exposure parameters—are stored in a structured SQLite database with configurable export options (CSV, PNG, TIFF). Audit trail functionality records user actions, parameter changes, and software version history—supporting GLP-compliant documentation and internal quality audits. The software architecture allows for future integration into MES or LIMS platforms via standardized OPC UA or RESTful API interfaces (available under extended support contract).

Applications

• Process development and optimization of silver paste dispensing, screen printing, and jetting in power module and RF package fabrication
• Quality assurance of die-attach uniformity prior to curing and thermal compression bonding
• Root cause analysis of void formation, delamination, and thickness variation correlated with paste rheology and substrate surface energy
• Comparative evaluation of alternative conductive pastes during material qualification (e.g., Ag vs. Ag–Cu hybrid formulations)
• Support for failure analysis labs requiring rapid, non-destructive screening before SEM/FIB cross-sectioning
• Training and method transfer in university microelectronics packaging courses and industry certification programs

FAQ

Is a dedicated computer required to operate the FH801?
Yes—the system requires a Windows PC with a USB 3.0 port and an available RS-232 serial interface (COM port). POWEREACH offers optional OEM-configured desktop units with three-year on-site warranty.
What is the minimum measurable thickness resolution?
The system achieves reliable detection of thickness gradients ≥1 µm under optimal lighting and focus conditions; absolute thickness quantification depends on reference calibration using certified step-height standards.
Can the FH801 be integrated into an automated production line?
The base model is benchtop and manually loaded; however, the optical head and stage controller support OEM integration via TTL trigger input and digital I/O expansion modules (custom quotation required).
Does the software comply with FDA 21 CFR Part 11 requirements?
Out-of-the-box, the software includes audit trail logging and user authentication; full Part 11 compliance (e.g., electronic signatures, role-based access control) is achievable through validated configuration and supplementary documentation services.
What maintenance and calibration support is provided?
One year of comprehensive hardware warranty and remote technical support is included. Annual calibration services—including optical alignment verification and stage repeatability testing—are available under service agreement.