SHNTI M-Series Manual Probe Station

Overview

The SHNTI M-Series Manual Probe Station is an entry-level, compact semiconductor characterization platform engineered for precision DC and high-frequency electrical measurements on bare die and wafer-level devices. Built upon a rigid aluminum alloy base with vibration-damped leveling feet, the system implements a manual XYZ micrometer-driven probe positioning architecture compliant with standard probe card mounting interfaces (e.g., 12.7 mm pitch). Its core measurement capability relies on four independent, low-noise coaxial probe arms—each equipped with interchangeable tungsten or beryllium-copper tips—enabling simultaneous multi-point contact for I-V, C-V, RF S-parameter, and surface resistivity (four-point probe method) testing. Designed specifically for environments where footprint, cost-efficiency, and operational simplicity are prioritized over automated throughput—such as university teaching laboratories, early-stage device R&D labs, and small-volume process validation—the M-Series delivers traceable electrical performance across a frequency range from DC to 67 GHz when paired with calibrated RF probes and vector network analyzers.

Key Features

• Compact benchtop form factor (W × D × H ≈ 450 × 400 × 320 mm), optimized for space-constrained academic and pilot-line labs
• Manual three-axis micrometer stages (X/Y resolution: 10 µm; Z resolution: 5 µm) with vernier scales and locking mechanisms for repeatable probe placement
• Adjustable chuck height and tilt compensation (±2°) to ensure coplanarity between probe tips and wafer surface
• Electrically isolated stainless-steel chuck with vacuum hold-down (≤0.08 MPa) compatible with 100 mm (4″) and 150 mm (6″) silicon, GaAs, SiC, and compound semiconductor wafers
• Integrated grounding bus bar and shielded coaxial feedthroughs supporting <1 pF parasitic capacitance per channel at DC–1 MHz
• RF-ready design: SMA and 2.92 mm coaxial connectors pre-installed; optional RF calibration kits and de-embedding fixtures available

Sample Compatibility & Compliance

The M-Series accommodates standard semiconductor wafers up to 150 mm in diameter, including polished, epitaxial, and patterned substrates. It supports both front-side probing of bond pads ≥30 µm in width and backside alignment via optical microscope integration (optional 10×–50× zoom stereo scope with LED ring illumination). The chuck surface meets SEMI E10 specifications for flatness (<5 µm TIR) and thermal stability (<±0.5 °C over 2 hours at ambient). While not certified for production-line GMP environments, the station conforms to ISO/IEC 17025-relevant practices for calibration traceability—micrometer stages are factory-calibrated against NIST-traceable standards, and electrical isolation resistance exceeds 10¹² Ω per channel. For educational use, it aligns with IEEE Std 1149.1 (JTAG) boundary-scan training setups and ASTM F1530-22 guidelines for wafer-level parametric test methodology.

Software & Data Management

As a manual probe station, the M-Series operates without embedded firmware or proprietary control software. All measurement instrumentation—including source-measure units (SMUs), parameter analyzers, and vector network analyzers—is interfaced externally via GPIB, USB-TMC, or LAN. Users retain full control over data acquisition protocols, instrument synchronization, and post-processing workflows using industry-standard platforms such as Keysight PathWave, National Instruments LabVIEW, or Python-based PyVISA scripts. Audit trails, calibration logs, and test configuration metadata must be managed externally per GLP/GMP requirements; no built-in 21 CFR Part 11 compliance features are included, consistent with its classification as a non-regulated laboratory tool.

Applications

• Undergraduate and graduate semiconductor device physics labs: diode ideality factor extraction, MOSFET transfer characteristics, Schottky barrier height estimation
• R&D validation of thin-film transistor (TFT) arrays, memristive crossbars, and flexible electronics on glass or polymer substrates
• RF component characterization: S-parameter measurement of MMICs, antenna-on-chip structures, and passive interconnects up to Ka-band
• MEMS actuator and sensor evaluation: electrostatic pull-in voltage, resonant frequency shift under DC bias, and impedance spectroscopy
• Surface resistivity mapping of transparent conductive oxides (TCOs) and 2D materials (e.g., graphene, MoS₂) using linear four-point probe configurations

FAQ

Is the M-Series compatible with cryogenic or temperature-controlled chucks?
No—standard configuration operates at ambient temperature only. Custom integration of thermoelectric coolers (TECs) or liquid-nitrogen-cooled chucks requires mechanical redesign and is not supported out-of-the-box.
Can it be upgraded to semi-automated operation?
Not natively. Motorized stages and vision-based auto-alignment are available only on SHNTI’s P-Series and V-Series platforms. Retrofitting the M-Series is not recommended due to structural and thermal load limitations.
What probe types are supported?
Standard tungsten carbide (WC) and beryllium copper (BeCu) cantilever probes with tip diameters from 10 µm to 100 µm; RF probes with GSG or GS configurations (e.g., Picoprobe, Cascade Microtech) mount directly to the arm holders.
Does SHNTI provide calibration certificates?
Yes—NIST-traceable stage calibration reports and chuck flatness verification documentation are supplied with each unit upon request. Electrical calibration is performed using external metrology-grade instruments by the end user or third-party labs.