MCL Think Nano Nano-METZ Z-Axis Piezoelectric Nanopositioning Stage

Overview

The MCL Think Nano Nano-METZ is a high-performance, compact z-axis nanopositioning stage engineered for applications requiring sub-picometer stability, ultra-low noise, and rapid dynamic response. Built upon a monolithic piezoelectric actuator architecture with integrated PicoQ® capacitive position sensing, the Nano-METZ operates on the principle of electrostrictive displacement amplification coupled with real-time closed-loop feedback. This enables deterministic control of vertical displacement with exceptional linearity and hysteresis suppression—critical for scanning probe microscopy (SPM), atomic force microscopy (AFM), optical interferometry, and nanoscale metrology where thermal drift, mechanical creep, and electronic noise directly limit measurement fidelity. Its 5 µm travel range is optimized for high-bandwidth scanning modes, while its 14.5 kHz resonant frequency supports acquisition rates exceeding 10 kHz in open-loop operation and maintains phase coherence up to ~7 kHz under closed-loop control.

Key Features

• Sub-picometer positioning resolution (0.005 nm) traceable to NIST-traceable calibration protocols
• Closed-loop operation with proprietary PicoQ® capacitive sensor delivering < 400 fm/√Hz position noise floor across all three axes
• Monolithic aluminum or titanium housing ensuring dimensional stability over temperature gradients (±0.5 °C operating range)
• Compact footprint (≤ 35 mm × 35 mm base) compatible with vacuum-compatible and UHV-ready configurations (optional)
• Integrated strain gauge preloading and symmetric flexure guidance for zero backlash and minimal parasitic motion
• Native compatibility with Nano-Drive® digital controller supporting analog voltage input (±10 V), USB 2.0, and Ethernet interfaces

Sample Compatibility & Compliance

The Nano-METZ is designed for integration into OEM AFM, NSOM, and custom SPM platforms where mechanical isolation and electromagnetic compatibility are critical. It meets ISO 10360-2:2020 requirements for coordinate measuring machine (CMM) probe repeatability when used in metrological setups. The stage complies with IEC 61326-1:2013 for electromagnetic immunity in laboratory environments and supports GLP/GMP audit trails when paired with Nano-Drive® firmware v4.2+. All units undergo individual factory calibration per ASTM E2544-22 Annex A2 for nanopositioner performance verification, including linearity deviation (< ±0.05% F.S.), bidirectional repeatability (≤ ±0.02 nm), and thermal coefficient of displacement (< 0.08 nm/°C). Vacuum-rated variants (10⁻⁷ mbar) are available with non-outgassing materials and bakeable connectors.

Software & Data Management

Control and data acquisition are managed via the Nano-Drive® software suite, which provides native support for Python (PyNanoDrive API), MATLAB Instrument Control Toolbox, and LabVIEW drivers (NI-VISA compliant). The system logs full audit trails—including timestamped position commands, sensor feedback values, gain settings, and environmental metadata—satisfying FDA 21 CFR Part 11 requirements for electronic records and signatures when configured with user authentication and digital certificate signing. Real-time streaming at up to 1 MHz sampling rate enables synchronized acquisition with external detectors (e.g., photodiodes, lock-in amplifiers), while built-in FFT analysis tools facilitate resonance characterization and noise spectral decomposition. Firmware updates preserve backward compatibility and include optional MadPLL® phase-locked loop modules for active vibration cancellation in low-frequency bands (< 100 Hz).

Applications

• High-speed AFM imaging in contact, tapping, and peak-force tapping modes with sub-nanometer Z-tracking fidelity
• Nanoscale surface topography mapping in semiconductor wafer inspection and MEMS device characterization
• Interferometric displacement calibration standards for laser Doppler vibrometers and heterodyne interferometers
• Active focus stabilization in super-resolution fluorescence microscopy (STED, PALM)
• Dynamic force spectroscopy experiments requiring precise force ramping with ≤ 1 pN/s resolution
• OEM integration into cryogenic SPM systems (4 K–300 K) with optional low-temperature piezo material variants

FAQ

What is the maximum recommended load capacity for vertical orientation?
The Nano-METZ is rated for 0.1 kg in vertical configuration; loads exceeding this require engineering consultation to assess static deflection and resonance shift.
Is vacuum compatibility standard or optional?
Standard units operate in ambient air; UHV-compatible versions (10⁻⁷ mbar) are available with modified electrode metallization and vacuum-rated cabling.
Does the Nano-METZ support multi-axis synchronization?
Yes—when paired with Nano-MET2/Nano-MET3 XY stages and a synchronized Nano-Drive® controller, sub-100 ps inter-axis timing jitter is achievable.
Can the PicoQ® sensor be recalibrated in-field?
No—PicoQ® sensors are factory-calibrated and sealed; recalibration requires return to MCL Think Nano’s certified metrology lab per ISO/IEC 17025.
What software development resources are provided?
Full SDK documentation, C/C++, Python, and LabVIEW example code, plus RESTful API access for remote orchestration in automated test systems.