The extremely high-volume production of MOSFET
integrated circuits has led to an ongoing push to reduce
device size, allowing more devices on a chip, and
improving performance, all while reducing cost.
The minimum surface dimension in a MOS
Comparison of BJTs and MOSFETs:
Input resistance We have seen that the dc input
resistance is virtually infinite in a MOSFET. For a BJT
the input resistance, while large, is much smaller than
the MOSFET, mainly because of minority carrier
injection into t
Capacitance of the MOS system
The small-signal capacitance of the MOS system
can depend strongly on the frequency of the applied
First, assume the MOS system is subjected to a dc bias
VG that causes the silicon surface to be accumulated.
For a p-
ELEC 320 Electronic Devices: I
March 19, 2008.
Notes. calculators, required course textbooks
(Vol. 1 Semiconductor Fundamentals by Pienet
and Microelectronic Devices by Leaver) allowed
(no other books).
h:6.63x10J-s; panama-mo q=].6x10"C;
Long-channel MOSFET theory refinements
A smaller channel length L in a MOSFET is desirable
because it increases the drain current for given bias
conditions and also improves the ac and switching
Thus, reducing L has b
Section 1 Problems
1) Calculate the energy of an electron in the first excited state of a hydrogen atom
2) Calculate the effective density of states in the valence band for silicon and sketch the energy
dispersion relation above and below the band
ECON 180 A01
UNIVERSITY OF VICTORIA
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First Name: _
STUDENT NUMBER: V00_
Course Name & No.
ECON 180 Introduction to Principles
of Microeconomics and Financial
ELEC320 Lecture Examples
Sketch the spatial part of the wavefunction for a quantum mechanical particle in the following
potentials: i) finite square well (ground state) ii) particle incident on a potential step (E < step length).
29. For the reaction: C2H4B1'3 + 3 KI - C2H4 + 2 KBI' + K13 the initial rate data at 60°C are:
What is the value of the rate constant for the reaction (in L2 mol'2 minl) if the rate law is
rate = k [C72H4B1g ][KI]'2 '?
A. 6.022 :B. 0.166 C. 0.598 D. 1.6
The equilibiium constant for the process: AgC 1(5) : Ag+(aq) + Cl' (aq) is 1.0 x 10'). What would be
the equilibrium concentration of Ag? in solution when 10 g of the AgCl salt is added to pure water?
A. 1.0 10'10 B. 1.0 10'9 C. 1.0 10'5 D. 1.0 10 E. 1.0