Zhengye JX22 Upright Metallurgical Microscope

Overview

The Zhengye JX22 Upright Metallurgical Microscope is an engineered optical instrument designed for high-fidelity microstructural analysis of opaque, reflective specimens—particularly printed circuit board (PCB) cross-sections, integrated circuit (IC) packaging interfaces, solder joints, metallized layers, and bulk metallic alloys. Unlike biological or transmitted-light microscopes, the JX22 employs a reflected-light (epi-illumination) optical path optimized for metallurgical applications, where surface topography, phase distribution, grain morphology, inclusion content, and interfacial integrity are critical quality indicators. Its upright configuration ensures ergonomic sample handling during routine QC inspection and failure analysis workflows in electronics manufacturing, materials R&D, and reliability laboratories. The system delivers stable 50×–600× optical magnification across four plan achromatic objectives (5×, 10×, 40×, 60×), coupled with a wide-field 10× eyepiece, enabling precise visual assessment prior to digital capture and quantitative metrology.

Key Features

• Optimized epi-illumination pathway with 6 V / 20 W halogen lamp, providing uniform, glare-free illumination across the field of view; brightness continuously adjustable via front-panel rheostat.
• Integrated polarizer module supporting contrast enhancement for anisotropic structures (e.g., etched grain boundaries, stress-induced birefringence in solder intermetallics).
• Rigid mechanical stage with coaxial coarse/fine focus controls (graduated fine-focus scale, 2 µm graduation) ensuring repeatable Z-axis positioning during serial sectioning or depth profiling.
• Plan achromatic objective set corrected for flatness and chromatic aberration up to 60×, delivering sharp edge-to-edge resolution essential for line-width measurement and defect boundary delineation.
• Native compatibility with the WD-300C 3.0-megapixel CMOS camera, offering real-time preview, frame averaging, and lossless TIFF capture at full sensor resolution (2048 × 1536).

Sample Compatibility & Compliance

The JX22 accommodates standard 25 mm and 32 mm diameter metallographic mounts, as well as unmounted PCB cross-sections up to 30 mm × 30 mm × 10 mm (L × W × H). Specimen height clearance exceeds 45 mm under the objective nosepiece, permitting analysis of multi-layer assemblies with conformal coatings or underfill encapsulants. All optical components comply with ISO 10934-1 (Microscopy — Nomenclature of microscope parts) and meet mechanical stability requirements per ASTM E883 (Standard Guide for Reflected Light Photomicrography). Grain size evaluation functionality adheres to ASTM E112 methodology for manual and semi-automated comparison chart-based assessment. While not certified to IEC 61000-4 electromagnetic immunity standards, the instrument operates reliably in Class 10,000 cleanroom environments when paired with grounded power conditioning.

Software & Data Management

The JX22 integrates proprietary measurement software developed in-house for Windows 10/11 (64-bit), supporting calibration traceability to NIST-traceable stage micrometers. Core capabilities include point-to-point distance, chord length, radius/diameter of curvature, angular deviation, and polygonal area quantification—all reported with uncertainty propagation based on pixel pitch and calibration factor. Software supports dual-monitor operation: live imaging on primary display and measurement dashboard with annotation tools on secondary. Export formats include CSV (for statistical process control integration), PDF reports with embedded metadata (operator ID, timestamp, magnification, calibration certificate ID), and annotated BMP/PNG. Audit trail logging (user actions, parameter changes, report generation events) satisfies GLP documentation requirements. Custom module development (e.g., automated solder void % calculation, IPC-A-610 defect flagging logic) is available under NDA-based engineering service agreements.

Applications

• PCB cross-sectional analysis: solder mask thickness, copper plating uniformity, via barrel fill integrity, delamination detection at layer interfaces.
• IC package qualification: die attach voiding, wire bond heel cracks, mold compound fill defects, intermetallic compound (IMC) layer thickness estimation.
• Metallurgical QA: grain size distribution in aluminum alloys per ASTM E112, inclusion rating per ASTM E45, decarburization depth in heat-treated steels.
• Fault isolation in field return analysis: electrochemical migration paths, dendritic growth, corrosion pitting morphology, thermal fatigue crack initiation sites.
• Educational use in materials science labs for hands-on metallography training, including specimen preparation workflow validation and etchant response characterization.

FAQ

Is the JX22 compatible with third-party image analysis software such as ImageJ or Olympus Stream?
Yes—the WD-300C camera outputs standard UVC-compliant video streams and supports TWAIN/DirectShow protocols, enabling seamless integration with ImageJ (via Bio-Formats plugin), Olympus Stream (v2.3+), and other vendor-agnostic platforms.
Does the system support motorized Z-axis or automated stage navigation?
No—motorization is not included in the base JX22 configuration. However, optional stepper-motor retrofit kits for Z-focus and XY-stage control are available as post-purchase upgrades.
What is the warranty coverage and service support model?
Zhengye provides a 24-month limited warranty covering parts and labor for optical and mechanical subsystems; electronic components (lamp power supply, camera interface board) are covered for 12 months. On-site technical support is available in Guangdong province; international customers receive remote diagnostics and DHL-scheduled spare part dispatch.
Can the JX22 perform quantitative phase fraction analysis?
Not natively—the current software does not include threshold-based segmentation or color-based phase recognition algorithms. However, grayscale histogram analysis and user-defined ROI intensity profiling are supported, and custom phase quantification modules can be commissioned separately.
Is the halogen illumination suitable for long-duration imaging without thermal drift?
The 6 V / 20 W lamp generates minimal radiant heat at the specimen plane (< 5 °C rise over 30 min at full brightness), and thermal expansion of the optical column is mitigated by aluminum alloy housing with CTE-matched lens mounts, ensuring sub-micron focus stability during extended acquisition sequences.