Present the derivation of the analytical formula

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1. Present the derivation of the analytical formula for the Early voltage given by (738.7) and (738.7A).

2. How long must the minority carrier lifetime be in order that the SNS current is negligible to give a super-beta Si p/n/p BJT at low currents? Consider the extreme case of beta=10.000 at V_EB=0.1kT/q=2.5mV. Use parameter values assumed in the text. If the recombination is entirely due to gold, what must the gold concentration be smaller than, and how many gold atoms are there in the space-charge layer for a area of 100μm²? Use the recombination data at the gold levels given in chapter

Reference no: EM131336560

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