Question

Assume a cylindrical diode, half P doped and half N doped. If the diode diameter is 100um, calculate the following:

a) Junction capacitance for no external bias and ND = 1E16 atoms/cm3 and NA = 1E16 atoms/cm3

b) Junction capacitance for no external bias and ND = 1E17 atoms/cm3 and NA = 1E15 atoms/cm3

c) Junction capacitance for a 10V reversed voltage and ND = 1E17 atoms/cm3 and NA = 1E15 atoms/cm3

d) Junction capacitance for a 0.3V forward voltage and 1E16 atoms/cm3 and NA = 1E16 atoms/cm3

Answer 1