Thermal Chucks

Q: What temperature range is right for my application?

-65°C to 200°C for commercial devices; ambient to 300°C for wide-bandgap and reliability testing.

Q: How do you prevent condensation at low temperatures?

A dry nitrogen purge enclosure with heated microscope window prevents frost formation down to -65°C.

Q: Can I perform RF measurements on a thermal chuck?

Yes, fully compatible with RF probing. On-wafer calibration at temperature is supported.

Q: What wafer sizes are supported?

Standard chucks for 4-inch, 6-inch, and 8-inch wafers. Custom sizes available.

Q: How is temperature uniformity verified?

Factory calibration with multiple RTDs; uniformity certificate documents ±0.5°C variation.

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Cat	Products Name	Product Highlights	Price
AIMRSE-PC-TC-1	8-inch Heating Chuck	600°C heating chuck	Request a Quote
AIMRSE-PC-TC-2	6/8-inch Heating Chuck	Versatile heating chuck	Request a Quote
AIMRSE-PC-TC-3	4-inch Heating Chuck	Compact 4-inch chuck	Request a Quote
AIMRSE-PC-TC-4	High-Temperature PID Control Unit	PID temp controller	Request a Quote
AIMRSE-PC-TC-5	High/Low-Temperature PID Control Unit	Wide-range temp control	Request a Quote

Overview

Precise Temperature Control for Device Characterization: Many semiconductor parameters—from threshold voltage to carrier mobility—are strong functions of temperature. Accurate device modeling and reliability assessment require the ability to characterize performance across the full operating temperature range. At AIMRSE, we manufacture Thermal Chucks engineered to provide uniform, stable temperature control from ‑65°C to 300°C with ±0.1°C precision. Our chucks integrate seamlessly with AIMRSE probe stations and are available with vacuum hold‑down for wafers up to 200 mm, enabling temperature‑dependent I‑V, C‑V, and RF measurements with confidence.

Chuck Design & Thermal Uniformity

Thermal chuck with gold-plated surface and temperature controller Fig 1: AIMRSE thermal chuck configured for temperature‑dependent semiconductor characterization.

AIMRSE thermal chucks are constructed with a high‑thermal‑conductivity copper core plated with gold for oxidation resistance and low contact resistance. Embedded resistive heaters and liquid‑cooled channels enable rapid heating and cooling across the full temperature range. A calibrated platinum RTD sensor provides feedback to a PID controller, maintaining temperature stability of ±0.1°C. The chuck surface features concentric vacuum grooves for secure wafer hold‑down, with options for triaxial guarding for low‑current measurements. Thermal isolation spacers decouple the chuck from the probe station platen, protecting microscope optics and positioners from thermal drift. Our thermal chucks are essential for temperature‑dependent I‑V characterization, wafer‑level reliability testing, RF device thermal analysis, and material phase transition studies.

Available Thermal Chuck Configurations

Ambient to 300°C Chucks

High‑Temperature Characterization
Resistive heating with active air or liquid cooling for rapid thermal cycling. Ideal for SiC and GaN device testing, annealing studies, and temperature coefficient extraction.

Sub‑Ambient to 200°C Chucks

‑65°C to 200°C with ±0.1°C Stability
Integrated Peltier or recirculating chiller cooling for low‑temperature device physics and noise measurements. Dry nitrogen purge prevents condensation.

High‑Uniformity Wafer Chucks

Up to 200 mm Wafer Capacity
Optimized heater layout for <±0.5°C uniformity across entire wafer surface. Essential for production‑level parametric testing and process control monitoring.

Triaxial Guarded Chucks

Low‑Leakage Current Measurements
Integrated guard ring driven to chuck potential eliminates surface leakage currents. Enables accurate sub‑picoampere I‑V measurements at elevated temperatures.

Core Engineering Advantages

Rapid Thermal Response

High‑power heaters and efficient cooling channels enable temperature ramp rates up to 50°C per minute. This reduces test cycle time and increases throughput for temperature‑dependent characterization.

Thermal Isolation & Probe Stability

Low‑thermal‑conductivity mounting posts and radiation shields isolate the chuck from the probe station platen. This prevents thermal expansion of the platen from shifting probe tip positions during temperature sweeps.

Condensation‑Free Operation

For sub‑ambient operation, a dry nitrogen purge enclosure and heated optical window prevent frost formation on the chuck surface and microscope objective, ensuring clear visibility throughout the test sequence.

Thermal Chuck FAQ

What temperature range is right for my application?

For most semiconductor device characterization, ‑65°C to 200°C covers commercial and industrial operating ranges. For wide‑bandgap devices (SiC, GaN) and reliability testing, ambient to 300°C is recommended. Custom ranges are available.

How do you prevent condensation at low temperatures?

We supply a dry nitrogen purge enclosure that maintains a positive pressure of dry gas around the chuck and probe tips. The microscope objective is heated to prevent fogging. This enables frost‑free operation down to ‑65°C.

Can I perform RF measurements on a thermal chuck?

Yes. Our thermal chucks are fully compatible with RF probing. The gold‑plated surface provides a low‑inductance ground plane, and thermal expansion effects are minimized through material selection. On‑wafer calibration can be performed at each temperature setpoint.

What wafer sizes are supported?

Standard chucks are available for wafers up to 4‑inch (100 mm), 6‑inch (150 mm), and 8‑inch (200 mm). Custom sizes and shapes for die or package testing are available upon request.

How is temperature uniformity verified?

Each chuck is factory‑calibrated using multiple calibrated RTD sensors across the surface. A uniformity certificate documenting ±0.5°C (or better) variation across the active area is provided with every system.

Custom Thermal Chuck Engineering Services

Ready to Specify Your Thermal Chuck?

From temperature range and wafer size to triaxial guarding and custom mounting patterns, our engineering team will design a thermal chuck solution that integrates perfectly with your probe station and measurement requirements.

Request Quote

Please specify required temperature range, wafer or sample size, and whether low‑current triaxial guarding is needed.

Note: All AIMRSE probe systems and components are designed exclusively for professional semiconductor R&D and industrial testing. Equipment must be operated by trained personnel in accordance with standard laboratory safety protocols.

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