Pushing performance beyond thermal limits by keeping devices cool
about coolsem
Driven by a shared belief that innovation should never be limited by heat, our team develops solutions that enable cooler, more reliable, and more efficient devices for the next generation of technology.
What we stand for and believe in
01
mission statement
At CoolSem, we deliver wafer-level thermal management solutions that improve performance, reliability, and energy efficiency in RF, power, photonic, and computing devices.
02
vision statement
We envision a world where thermal limits no longer constrain innovation. A world where chips run cooler, systems last longer, and energy is used more efficiently.
Founding team
André van Geelen
ceo/cto
PhD in III-V materials with extensive experience in semiconductors and photonics. Formerly at Philips, NXP, EPCOS, JDSU, and Qualcomm, André had a senior role at ThreeFive Photonics (exit ASIP) and lead Antenna Tuners (exit Qualcomm). Known for his pragmatic and intuitive approach to technology.
Robbert van der Waal
cSo
Seasoned leader in MEMS and micro devices, with roles including General Manager at Xiver MEMS Foundry and Philips Laser Sensors, and Head of Philips MEMS & Micro Devices. Formerly in international product marketing for RF at NXP. Focused on people, business, and strategy.
Kees Steenbergen
cOo
Experienced operations and product leader, with senior roles at ThreeFive Photonics (acquired ASIP), GreenPeak, Qorvo, and Pharrowtech. Strong track record in scaling teams and operations, combining analytical rigor with hands-on execution.
