Temperature dependence of triodelike JFET drain current after pinchoff

The drain current of a triodelike JFET exhibits both positive and negative temperature dependence, depending on the current density. For drain current smaller than ∼5 A.cm -2 , the thermionic-injection mechanism prevails, leading to the positive temperature coefficient. On the other hand, a space-ch...

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Bibliographic Details
Published in:IEEE transactions on electron devices 1977-06, Vol.24 (6), p.768-769
Main Author: Ozawa, O.
Format: Article
Language:English
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Summary:The drain current of a triodelike JFET exhibits both positive and negative temperature dependence, depending on the current density. For drain current smaller than ∼5 A.cm -2 , the thermionic-injection mechanism prevails, leading to the positive temperature coefficient. On the other hand, a space-charge-limited current flows in the case of current density larger than ∼10 A.cm -2 , resulting in nearly T -1 dependence due to the mobility decrease.
ISSN:0018-9383
1557-9646
DOI:10.1109/T-ED.1977.18821