Thermal Conductivity Testing & Measurement Services

Thermoreflectance Imaging with Nanoscale Accuracy.

Industries and Applications


Thin film dielectrics, heat spreaders, new materials for high power applications

Power electronics

GaN and WBG-based heterostructures

High-speed and/ or high-power RF systems

GaAs, InP, Si, SiC, Ga2O3, etc

Thermal mapping of devices

HEMTs, HBTs, Schottky diodes, MMICs, etc

Assessment of thermal resistances

Heteroepitaxy, chiplet/submount integration via flip-chip bonding, etc.

Our Thermal Conductivity Testing Method: Steady-State Thermoreflectance in Fiber Optics (SSTR-F)

Laser Thermal’s testing services are anchored in SSTR-F, our patented non-contact, laser-based pump-probe technique. Compatible with bulk and thin-film materials, STTR-F can measure interfacial thermal resistance and thin films from nanometers to microns. In addition to powering our testing services, our SSTR-F solution is available for purchase. Laser Thermal also offers time-domain thermoreflectance (TDTR) testing services including picosecond acoustics, thermal conductivity, interfacial thermal resistance, and volumetric heat capacity measurements.

How to Get Started with Our Thermal Conductivity Testing Services

Step 01

Reach Out to Our Team

Fill out the form to reach out to our team to schedule a test and ship your sample.

Step 02

Prepare and Perform

The Laser Thermal team will prepare your specimen and perform the requisite set of thermal tests at our laboratory.

Step 03

Receive In-Depth Data

Receive in-depth data on the thermal properties of your sample material within 2-3 weeks of receipt. A 1-week turnaround is available for a 50% surcharge.

Frequently Asked Questions

What is thermal conductivity?

Thermal conductivity is a form of heat transfer with vital implications for material performance in applications ranging from electronic devices to solar panels. Learn More About Thermal Conductivity

Why use SSTR-F for thermal conductivity testing?

Unlike traditional thermal metrology techniques, SSTR-F is able to resolve thermal resistance measurements on the micrometer or sub-micrometer scale, allowing for accurate thermal metrology even for highly challenging thin film materials. See Sample Results

Why are traditional thermal metrology methods unsuitable for challenging materials like thin films?

Traditional sensors such as thermocouples or resistive thermometers can be used to capture measurements of the temperature gradients or changing heat flux that result as heat is applied to a material, but thin film materials are often substantially thinner than the dimensions of the heaters and sensors used to induce the temperature gradients and capture temperature changes, respectively. For example, the material in the thermal sensor itself will contribute more to the recorded thermal resistances and temperature changes than the thin film of interest! Learn More

What does thermal conductivity testing cost?

We calculate testing costs based on the number of samples you provide. For each batch tested, there is a fee for coating samples with the optical transducer. We can also offer temperature testing for an additional charge.