DEPLETION NOMOGRAPH

Si ——————————— GaAs

DEPLETION NOMOGRAPH

Note Examples are for N ~ 1*1017 cm-3 and y = 4 V There is also a quick way to estimate the depletion width For most semiconductors, for tj/ = 1 VandA^ lxlO15 cm-3, ^happens to be around 1 fim Since Wd<x {tf//N)^{Eqs (El 19)—(El 20)), we can scale from this set of numbers For example, with N= MO17 cm-3, Wd becomes 0 1 jim Changing y = 4 V would then increase the fVdto0 2 jini

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