On May 20, 2025, at 3:15 p.m., Dr. Klaus Ettrich, Head of the MEMS Business Unit at the CiS Research Institute, will provide insights into current research on the topic of “Semiconductor devices at cryogenic temperatures for hydrogen applications” as part of the “Smart Materials” panel.
At these extremely low temperatures, the freezing-out effect in doped semiconductors plays a significant role. This effect refers to the decrease in charge carriers in the conduction band, which switch to the valence band as the temperature drops, leading to a change in the electrical properties of the material. This effect has been demonstrated by extensive Hall measurements on samples with different doping levels and can already occur at room temperatures.
The 13th microTEC Cluster Conference 2025 will take place from May 19 to 20, 2025, in Baden-Baden. This important event for the microsystems technology industry offers a high-caliber program with expert presentations and interactive workshops on topics such as microsystems technology, Industry 4.0, robotics, medical technology, and sustainable electronics.
The research and development work described was funded by the Federal Ministry for Economic Affairs and Climate Action (BMWK) in research projects:
„CryoSense2R“ – Funding code: 49MF230124
„Freezing out“ – Funding code: 49VF190056
„TeLa“ – Funding code: 49VF170014
