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arXiv · 1606.07805

A model based DC analysis of SiPM breakdown voltages

Ferenc Nagy·Gyula Hegyesi·Gabor Kalinka·Jozsef Molnar
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Abstract

A new method to determine the breakdown voltage of SiPMs is presented. It is backed up by a DC model which describes the breakdown phenomenon by distinct avalanche turn-on ($V_{01}$) and turn off ($V_{10}$) voltages. It is shown that $V_{01}$ is related to the 'breakdown voltage' that previous DC methods derive from simple reverse current-voltage measurements, while $V_{10}$ is the 'real' breakdown voltage commonly obtained from complex gain-voltage measurements. The proposed method reveals how the microcell population distributes around $V_{01}$ and $V_{10}$. It is found that if this distribution is assumed to be normal, then both voltages and even their standard deviation can readily be extracted from current-voltage curves. Measurements are in good agreement with the theoretical model.

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Ferenc Nagy, Gyula Hegyesi, Gabor Kalinka, Jozsef Molnar. 2017-01-25. A model based DC analysis of SiPM breakdown voltages. https://doi.org/10.1016/j.nima.2017.01.002

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