p. fernández-martínez – optimized lgad peripheryresmdd14, firenze 8-10 october 20141 centro...

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P. Fernández-Martínez – Optimized LGAD PeripheryRESMDD14, Firenze 8-10 October Centro Nacional de MicroelectrónicaInstituto de Microelectrónica de Barcelona Critical aspects of the LGAD design Electric 400 V  Two regions  different junctions: Central area  uniform electric field, high enough to activate mechanism of impact ionization (multiplication) Termination N+N+ P π  High electric field confined in the central region  3rd Region Periphery  Reduction of the leakage currents