Print Email Facebook Twitter Printed circuit board metal powder filters for low electron temperatures Title Printed circuit board metal powder filters for low electron temperatures Author Mueller, F. Schouten, R.N. Brauns, M. Gang, T. Lim, W.H. Lai, N.S. Dzurak, A.S. Van der Wiel, W.G. Zwanenburg, F.A. Faculty Applied Sciences Department QN/Quantum Nanoscience Date 2013-04-30 Abstract We report the characterisation of printed circuit boards (PCB) metal powder filters and their influence on the effective electron temperature which is as low as 22 mK for a quantum dot in a silicon MOSFET structure in a dilution refrigerator. We investigate the attenuation behaviour (10 MHz–20 GHz) of filter made of four metal powders with a grain size below 50 ?m. The room-temperature attenuation of a stainless steel powder filter is more than 80 dB at frequencies above 1.5 GHz. In all metal powder filters, the attenuation increases with temperature. Compared to classical powder filters, the design presented here is much less laborious to fabricate and specifically the copper powder PCB-filters deliver an equal or even better performance than their classical counterparts. Subject elemental semiconductorsfiltersMOSFETpowdersprinted circuit designsemiconductor quantum dotssiliconstainless steel To reference this document use: http://resolver.tudelft.nl/uuid:06c4b49b-6432-4421-94df-2781ca19d767 DOI https://doi.org/10.1063/1.4802875 Publisher American Institute of Physics ISSN 0034-6748 Source https://doi.org/10.1063/1.4802875 Source Review of Scientific Instruments, 84 (4), 2013 Part of collection Institutional Repository Document type journal article Rights © 2013 AIP Publishing LLC Files PDF Schouten_2013.pdf 2.43 MB Close viewer /islandora/object/uuid:06c4b49b-6432-4421-94df-2781ca19d767/datastream/OBJ/view