ELE533 Bipolar Devices

Mid Term Exam
July 9, 1998

Question 4 Answer

Vb = 0.65V,   Vbi = 0.5V,   Øm = 4.7V,   Øs = 4.25V,   Vn = 0.2V

Sketch the band diagram for an ideal Schottky contact made by placing a metal with a work function of 4.7 eV on silicon doped with 1016 donors/cm3.

  • Is this a rectifying contact?   YES

  • What is the barrier height?   0.65V