TEE! EM 98 63:41PM PkOi mmhmoiob er
EE Phi). Qualikigg Examination
Examiner: Y. Yamamoto .
3 Q Ills
January 12-15, 1998 i
Suppose we initially have a constant number of events (particles, pulses, etc.) and
delete each event with an average rate of q = 1
28022003 EE PILD. Qualifying Exam
Question area: Electronic Devices
Examiner: Jelena Vuckowc
l. Metal-semiconductor (MS) junction (3 p!)
A junction is formed directly between a metal and a p-type semiconductor. as shown in
Fig. 1a. The workfunction of s
EE QUALIFYING EXAM
This is a problem about discrete signals (vectors) of length N .
Let I be a subset of cfw_0, 1, . . . , N 1 and let I be the complementary
subset. (For example, I could be the set of even numbers in cfw_0, 1, . . . , N 1
Quals Questions: 5'
Len Tyler. January. 1995
1. Given a transmitter emitting a single pulse of frequency f0. and duration T. received by a
pair of receiving antennas located at some remote distance. how would you process the signals
from the two receivin
1994 EE UALS - PL ME
The rst part of the exam (top drawing) was simply to make sure that
each student understood the basics of bipolar transistor operation. I asked for
a brief description of how the device operates (at the level of electrons and
PEASE'S 1993 QUALS QUESTION
LDene the Ampere.
2. How do you measure current (absolutety)? , < 5 r'
_ I. .u-
3. Given that charge is quantized (in integral/multiplies of q) should not a low current have
ap aliens be if We measured a current o