( 4 1 ) Q 4 sed 3 – 2 3 Calculate Is and the current, I, for V = 7 8 0 m V for a pn junction for which N A = 1 0 1 7 c m 3 , N D = 1 0 1 6 c m 3 , A = 2 0 μ m 2 , n i = 1 . 5 × 1 0 1 0 c m 3 , L p = 5 μ m , L n = 1 0 μ m ,  D p = 1 0 c m 2 s , and D n = 1 8 c m 2 s .  Update Note: you can assume that , and the calcelore nse V T = 2 5 . 9 m V . ( But show the calculation ) Solution

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Q4 sed 323
Calculate Is and the current, I, for V=780mV for a pn junction for which NA=1017cm3,ND=1016cm3,
A=20μm2,ni=1.5×1010cm3,Lp=5μm,Ln=10μm, 
Dp=10cm2s, and Dn=18cm2s. 
Update Note: you can assume that , and the calcelore nse VT=25.9mV. (But show the calculation)
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