PoS - Proceedings of Science
Volume 441 - XVIII International Conference on Topics in Astroparticle and Underground Physics (TAUP2023) - Dark Matter and its Detection
Study on the preparation of low-background flexible electronics substrate based on ion beam modification polymer surface
S. Zhang, Y. Liu, S. Lv, X. Meng* and J. Cheng
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Pre-published on: March 04, 2024
Published on: March 22, 2024
The rare event detection experiments have always been updated with the improved performance of the electronics. In the next phase of China Dark Matter EXperiment (CDEX), the electronics have been designed with detector crystal barely immersed in 6.5 m shielding thickness of liquid nitrogen. The flexible electronic substrate (FES) composed electronics are required to be with high adhesion, low-temperature resistance and low-background. Polytetrafluoroethylene (PTFE) is widely recognized with properties of low-background, high dielectric but with poor surface adhesion. Here we focus on the comparative behavior of ion implanted polymers with cross-linking or chain scission dominant effects, and analyse the surface adhesion mechanism of polymers, to lay an important foundation for achieving electronic substrates with high adhesion, low-temperature resistance, and low-background.
DOI: https://doi.org/10.22323/1.441.0101
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