ELE533 Bipolar Devices

Mid Term Exam
July 9, 1998

Question 2 Answer

Consider a pn junction with the P side doped with Na = 1020 cm-3

Approximately, what is the required doping on the N side to obtain a breakdown of 20V?

Use the one sided step junction approximation.

Answer   ND = 1.4X1016cm-3