,ANsW'ERS’ _ -
Name: Number: Page 1 of 9
Midterm October 2006 i
Closed Book. Only pens, pencils allowed. No calculators. Time: 50 minutes.
Equation list and periodic table provided on last 2 pages. E
Total marks: 95
1. (2) What is the conductiv
THE UNIVERSITY OF BRITISH COLUMBIA
Department of Electrical and Computer Engineering
EECE 352 — Electrical Engineering Materials
Closed Book. Equation Sheet Provided at Back. Answer all problems.
Time: 150 minutes.
This examination consists of 12 pages. P
Name: p. 2/12
1. ( /13) For GaAs,
(a) ( /8) what is the type of the unit cell? How many Ga and As atoms are there in each unit
cell? Explain the difference between a direct and indirect band gap semiconductor. Does
GaAs have a direct or indirect band gap?