Summary
Criteria for the appearance of thermal instability in experiments using semiconductor devices have been established for both the « lumped-temperature model » and the « distributed-temperature model ». An effective thermal time constant (τe) for both the models has been postulated which is largely dependent on the external-circuit parameters. In the case of the « distributed-temperature model », it has been found that τe is also a function of the various modes of temperature distribution, the fundamental mode being the most dominant one.
Riassunto
Sono stati stabiliti i criteri per la comparsa di instabilità termica in experimenti che usano semiconduttori, sia per « modelli di temperatura raggruppata » che per « modelli di temperatura sparpagliata ». È stata postulata una costante di tempo termica efficace (τe per entrambi i modelli che è ampiamente dipendente dai parametri dei circuiti esterni. Nel caso del « modello di temperatura sparpagliata », si è trovato cbe τe è anche una funzione dei vari modi di distribuzione della temperatura, il modo fondamentale essendo quello più dominante.
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Anwar, M.Z. Criteria for thermal instability in semiconductors based on effective thermal time constant. Nuov Cim B 48, 1–8 (1978). https://doi.org/10.1007/BF02748644
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DOI: https://doi.org/10.1007/BF02748644