EE 116 HW5 Solutions
Problem 1 Short Answers
a) Sketch the net charge distribution, electric field, and electric potential within the depletion
region of a pn junction. Assume both sides are uniformly doped at the same concentration.
Because both sides ar
EE116 Homework #6 Solutions
1) Short Answers (25 pts, 5 pts each): No essay or calculations needed. Just use a couple of
sentences to answer.
a) Assuming that all device parameters are kept constant (material, doping, carrier lifetime),
which has a larger
EE116 Homework #2 Solution
1) Short Answers (20 points, 4 points each): No essay or calculations needed. Just
use a couple of sentences to anwser.
a) what is a donor atom? What group in the periodic table is it associated with,
assuming that the material
EE116 Spr13, Dutton & Liu
EE116 Homework #2
Due Fri. April 19th 2013 5pm*
1) Short Answers (20 points, 4 points each): No essay or calculations needed. Just use a
couple of sentences to answer.
a) What is a donor atom? What group in the periodic table is
EE116 Homework #3 Solutions
1) Short Answers (20 pts, 4 pts each): No essay or calculations needed. Just use a couple
of sentences to answer.
a) If we introduce additional P-type doping into an originally N-type doped
semiconductor, does the mobility incr
EE116 Spr13 Summary of Apr. 30th and May 2nd Lectures
Yang Liu
In these two classes, we studied the following topics:
PN Junction Formation: A PN junction is formed by contacted p-type and n-type
regions. To understand its band-diagram, we may consider a
EE116 Spr13, Dutton & Liu
EE116 Homework #5
Due Mon. May 13th 2013 5pm*
1) Short Answers (25 pts, 5 pts each): No essay or calculations needed. Just use a couple
of sentences to answer.
a) Sketch the net charge distribution, electric field, and electric p
EE116 Spr13 Summary of Apr. 23rd Lecture
Yang Liu
In todays class, we studied the following topics:
Thermal Equilibrium vs. Steady State: Steady state means all macroscopic
quantities are time-independent. External driving other than thermal statistics ma
EE116 Homework #4 Solutions
1) Short Answers (20 pts, 5 pts each): No essay or calculations needed. Just use a couple
of sentences to answer.
a) Does a steady state of zero net current necessarily mean an equilibrium condition?
No. Thermal equilibrium is
EE116 Spr13 Summary of Apr. 25th Lecture
Yang Liu
In todays class, we studied the following topics:
Temporal or Spatial Analysis: In practice, solving the continuity equations for a
complicated device structure requires the use of dedicated software tools
EE 116 Lecture 3
Atoms and Crystals
Book: http:/ecee.colorado.edu/~bart/book/book/contents.htm
Intro and Review:
Read Chapter 0.1-0.4
Scan and Review Chapter 1 (some Phys 43, 45, 70 concepts)
This lecture Read 2.1 and 2.2
Prof. E. Pop
1
Stanford EE 1
EE 116 Lecture 9
Temperature Dependence of Carrier Concentrations
http:/ecee.colorado.edu/~bart/book/book/content2.htm
Read Ch. 2.6, in particular Ch. 2.6.3 and 2.6.4
Read Ch. 2.7, up to 2.7.3
Prof. E. Pop
1
Stanford EE 116
So far: how to get electron
EE 116: Semiconductor Device Physics
Spr 2015 Mon-Wed 12:50-2:05pm Gates B12 Prof. Eric Pop
Two lecture/discussion meetings per week
10 weeks, 20 lectures
Grade = 30% HW + 30% Midterm + 40% Final
Midterm: week of May 4-6, exact day TBD
Final: week of
EE 116 Lecture 6
Intrinsic Material, Doping, Carrier Concentrations
http:/ecee.colorado.edu/~bart/book/book/content2.htm
Begin skimming Ch. 2.6
Read: 2.6.4 to 2.6.4.2
Prof. E. Pop
Also see
CCH Ch. 1
Stanford EE 116
1
Intrinsic semiconductor = pure, wi
EE 116 Lectures 12-14
Diffusion of carriers
http:/ecee.colorado.edu/~bart/book/book/toc2.htm
Read section 2.7.4
Also see CCH Ch. 2.3-2.8
Prof. E. Pop
Stanford EE 116
1
Remember Brownian motion of electrons & holes!
When E-field = 0, but T > 0, therma
EE116 Spr13 Summary of Apr. 18th Lecture
Yang Liu
In todays class, we studied the following topics:
Mobility: At low field, drift velocity is linearly dependent on electric field. The slope
is defined as mobility. In a microscopic view, mobility can be ex
EE116 Spr13 Summary of Apr. 16th Lecture
Yang Liu
In todays class, we studied the following topics:
Extrinsic vs. Intrinsic: (Most of this part was included in last lectures summary.)
When temperature increases so that ni becomes comparable to extrinsic d
EE116 Spr13 Summary of Apr. 11th Lecture
Yang Liu
In todays class, we studied the following topics (the intrinsic Fermi level part will be
covered at the beginning of the next lecture):
Ionized Donor vs. Hole: When a donor is ionized, it generates a free
Name:
Student ID:
Mid-Term Examination
EE 116
(Thursday, May 16, 2013, 12:50-2:05PM)
R ules:
Start: 12:50pm; Stop 2:05pm (pens down)
Closed book
Two cheat sheets (double-sided, Letter size) allowed
Calculator allowed
No other mobile electronic devices
FYI
EE116 Spr13 Summary of May 23th & 28th Lecture
Yang Liu
In these two classes, we studied the following topics:
Band Gap and Optical Properties: This is a revisit of the topic. From quantum
mechanics, the photon energy and wavelength are related Ephoton =