Taking Cooling, Heating, and Energy Harvesting to the Next Level.

About Us

We push the boundaries of cooling technology, so you can push the boundaries of our modern world. Located in the growing tech hub of Austin, Texas, Sheetak develops sustainable, ecofriendly solid-state cooling, heating and energy harvesting technologies with breakthrough efficiencies – enabling attractive economics for the company’s quantum thermoelectric chips across an expanding range of use cases.

What We Do

QOOL CHIPS® and CENTUM® thermoelectric devices enable precise and efficient thermal management of lasers, optical transceivers in communications and data centers, and thermal cyclers for genomics.

EON® Energy Harvesters are the highest couple density devices, delivering voltage and power without the need of costly and inefficient boost circuits.

Our Vision

At Sheetak, we believe in creating cutting-edge cooling and heating technology that is cost-efficient, environmentally friendly, and of course, highly effective. We leverage over a century of expertise and an extensive portfolio to develop pioneering cooling, heating and energy harvesting solutions.

We strive for this level of impact in every product we develop.

Why Sheetak?

We have over 100+ years of knowledge and application of solid-state cooling, thermoelectric devices and structures, and thermal management.

Our formidable IP portfolio related to Quantum Thermoelectrics, CENTUM® Coolers, EON® Energy Harvesters, Portable Coolers and
refrigerant free GREEN COOLERS® includes many patent applications and has been granted 14 patents in US, PRC, and India.

In addition, the IP portfolio includes trade secrets about optimal material compositions, fabrication methods, quantum thermoelectric device designs, circuit designs, architecture, and volume manufacturing.

Our state-of-the-art facilities in Austin, Texas can fabricate advanced thermoelectric modules – starting from thin-film devices, to assembly of chips and engines, and integration in systems of all types.

About Our Leadership Team

Uttam Ghoshal

Founder, President & CTO

Uttam Ghoshal is an entrepreneur pioneering the commercialization of electronic refrigeration. He was a Master Inventor at IBM Research, the Founder of Nanocoolers Inc., VP at Cypress Semiconductor/Sunpower, and an Adjunct Professor at UT Austin. He has managed $30M+ US DOE & DOD funded programs, holds 150+ patents, and received his Ph.D. (EE) from UC Berkeley.

Tejas Vakil


Technology Executive with 40+ years of experience in General Management, Business Development, Sales and Marketing at global companies such as Dell Inc., Compaq (now HP), Bertelsmann (arvato). Serial Entrepreneur with six technology startups, early-stage companies with successful exits; SAAS FinTech, Blockchain, RFID. Global Experience – EMEA Vice President, Dell; managed teams in Europe, Middle East, Asia, and Latin America. Investor and Advisory/Board member for various real estate, energy, technology, venture capital and private equity investment firms.

Chris Munson


Chris Munson has been CEO or CFO of numerous companies, from startups to businesses doing $50 million in revenue. He started his first company at age 21 after graduating from the University of Texas. Chris was named Austin Young Entrepreneur of the year in 1989.

Brandon Noska

Director of Product Management and Sales

Brandon Noska has over 20 years of experience in successfully bringing new technologies and products to market for the thermal management, lighting, electronics, energy, and aerospace industries. He has held leadership and executive positions at Nanocoolers, Augmentix, Nuventix, Bridgelux, and Kaspar Ranch Hand.

Key Kolle

Director, Operations

Key Kolle has 25+ years of experience in silicon process technologies at Cirrus Logic, Silicon Labs, and Vitesse Semiconductor.

Mike Koelzer

Director of Manufacturing

Mike has 30+ years of experience in subcontract manufacturing bringing products from prototype to high volume. His experience covers a wide range of products from commercial/Industrial to Military and space level.

Upcoming Events

Photonics West

January 28 – February 2nd 2023

Semitherm 39th Annual Semiconductor Thermal Measurement, Modeling, and Management Symposium

March 13th-17th 2023

Our Dedicated partners

Where to buy Sheetak technologies

AMS Technologies | Europe

AMS Technologies is Europe’s leading solution provider and distributor of high-tech, leading-edge components, systems, and equipment, with more than 30 years of experience to date and currently serving over 2,000 European customers.

Digi-Key | USA

Founded in 1972, Digi-Key was a pioneer in the mail-order catalog business and a key resource for design engineers. Today, Digi-Key offers the world’s largest selection of electronic components in stock and available for immediate shipment. From prototype to production, Digi-Key aims to fuel innovation all over the world.

SM Electronics Technologies | India

Established in 1990, SM Electronics has become the leading Indian professional distribution company in the field of electronic components. It is managed by professionals with both business and technical expertise, and has a highly structured operation for foreign & local currency business. 

Llano Component and Design | USA

With 25 years of experience selling electronics to OEMs, Llano Component and Design has proven success developing applications in telecommunications, consumer, automotive, military, and energy equipment. Territory includes Texas, Oklahoma, Arkansas, and Louisiana.

Sheetak | USA

With a combined 100+ years of knowledge and application of solid state cooling, thermoelectric devices and structures, and thermal management, Sheetak is pushing the boundaries of solid-state cooling and heating technology. Sheetak is proud to be pioneering mobile, eco-friendly and cost-effective solid-state refrigeration systems.