AoLong ALYX-600A Fully Enclosed Sapphire Rod Bonding X-ray Orientator

Overview

The AoLong ALYX-600A Fully Enclosed Sapphire Rod Bonding X-ray Orientator is a precision metrology instrument engineered for crystallographic orientation alignment and bonding verification of sapphire (Al₂O₃) single-crystal rods used in LED substrate manufacturing, optical windows, and high-performance RF components. It operates on the Bragg diffraction principle, utilizing monochromatic Cu-Kα radiation (λ = 1.5418 Å) to determine lattice plane orientation relative to the physical geometry of cylindrical sapphire blanks. The system integrates dual independent workstations within a fully shielded enclosure: the left station supports real-time X-ray-assisted adhesive bonding of 2–6 inch diameter sapphire rods (minimum length 20 mm) onto carrier plates via precision linear translation stages; the right station performs high-resolution angular measurement of cut-end faces—critical for ensuring c-plane or r-plane alignment prior to wafer slicing. Its closed-loop angular feedback architecture, combined with sub-arcsecond digital resolution and traceable calibration against certified quartz standards, ensures repeatability required under ISO/IEC 17025-compliant QC environments.

Key Features

• Fully enclosed lead-shielded cabinet compliant with national radiation safety standards (GBZ 117–2020) and electromagnetic compatibility requirements (IEC 61000-6-3), eliminating operator exposure risk during operation.
• Dual-function workstation design: left-side bonding stage with motorized linear rail for sequential multi-rod alignment; right-side measurement station with fine-adjustment goniometer for end-face angular characterization.
• High-stability Cu-target X-ray tube (30 kV / 5 mA, fan-cooled, grounded anode) delivering consistent beam intensity and spectral purity for reliable Bragg peak detection.
• Configurable detector options: proportional counter (DC 1000 V max) for high-count-rate applications or scintillation detector (DC 1200 V max) for enhanced low-intensity signal discrimination.
• Dual time-constant circuitry (Fast/Slow) enables optimization of signal-to-noise ratio across varying crystal quality and absorption conditions.
• Digital angular readout with dual-format display: sexagesimal (° ′ ″) resolution down to 1″ and decimal degree resolution to 0.001°, supporting both legacy metrology workflows and modern data logging protocols.
• Pre-settable angle positioning with real-time digital feedback, enabling repeatable setup for batch processing of standardized rod geometries.

Sample Compatibility & Compliance

The ALYX-600A accommodates sapphire rods ranging from 2 to 6 inches in diameter and minimum lengths of 20 mm. Its open-stage design allows direct mounting of rods onto aluminum or stainless-steel carrier plates using industry-standard UV-curable or thermosetting adhesives. All mechanical adjustments are calibrated against NIST-traceable quartz reference crystals (e.g., SiO₂ α-quartz, 0001 reflection), ensuring traceability per ISO 17025 Clause 6.6. Radiation shielding meets Class I equipment requirements under Chinese national standard GBZ 117–2020 and aligns with international best practices for cabinet-type X-ray instruments (IEC 61010-1). No radioactive sources are employed; all emissions originate solely from electrically excited X-ray tubes operated within certified safety interlock parameters.

Software & Data Management

While the ALYX-600A operates via embedded microcontroller-based firmware without proprietary PC software, its digital output interface supports RS-232 serial communication for integration into laboratory information management systems (LIMS) or custom QA databases. Angle values, exposure duration, and intensity readings are timestamped and exportable as ASCII-formatted logs compatible with Excel, MATLAB, or Python-based statistical process control (SPC) tools. Audit trails—including operator ID (via external login), session start/end times, and calibration verification records—can be maintained externally to satisfy GLP and GMP documentation requirements (21 CFR Part 11 compliant when paired with validated third-party data acquisition platforms).

Applications

• Pre-bonding orientation verification of sapphire rods prior to adhesive lamination onto silicon carbide or tungsten carbide carriers.
• End-face angle certification for c-plane (0001), r-plane (101̅2), or m-plane (101̅0) alignment in epitaxial substrate preparation lines.
• Quality assurance of sliced wafers by back-calculating cutting error from measured facet deviation.
• Process validation for automated rod handling systems where angular tolerance must remain within ±30″ across production lots.
• Research-grade lattice orientation mapping in academic crystal growth laboratories requiring manual goniometric control and direct visual confirmation of diffraction patterns.

FAQ

What crystallographic planes can the ALYX-600A verify on sapphire?

It measures orientation relative to primary reflections of corundum structure—most commonly the (0001), (101̅2), and (112̅0) families—using Cu-Kα radiation and standard Bragg condition calculations.
Is the system compatible with automated factory-floor integration?

Yes—its RS-232 interface and deterministic response timing allow synchronization with PLC-controlled handling robots and MES-triggered measurement cycles.
Does the instrument require annual third-party radiation safety inspection?

Per GBZ 117–2020, periodic verification (typically every 12 months) by accredited radiation protection agencies is mandatory for operational licensing in China; documentation templates are provided in the user manual.
Can it be used for materials other than sapphire?

While optimized for Al₂O₃, the system may characterize other hexagonal or rhombohedral single crystals (e.g., SiC, ZnO) if their d-spacing yields resolvable Bragg angles within the 2θ range of −10° to 120°.
What maintenance is required for long-term angular accuracy?

Annual recalibration using supplied quartz reference samples and verification of mechanical zero-point drift on both workstations is recommended; no consumable parts exist in the X-ray generation or detection path.