EE 147/247A Introduction to MEMS

Fall 2020

MWF 3-4

Class info, homework questions, discussion, etc: piazza

Grades: bcourses

All homework

Lecture recordings are available on bcourses, linked in the syllabus tab

Archives from previous semesters

My policy on CHEATING.  READ IT!

Instructor

 

Office Hours

Kristofer S.J. Pister, pister@eecs.berkeley.edu

512 Cory Hall  (ha ha.  Not that I’ll ever be there this semester)


Tu 2:30-3:30, F 10:30-11:30 or by email appointment.  Zoom link posted on piazza.

TA

Office Hours

Dillon Acker-James, dackerjames@berkeley.edu

M 9-10, Th 4-5 same zoom link as discussion (find on piazza)

Required Texts

none

Useful Texts

Jaeger, Introduction to Microelectronic Fabrication, 2nd edition, (highly recommended)

-----------------------------------------------------

Kaajakari, Practical MEMS

Kubby, A Guide to Hands-on MEMS Design and Prototyping

Korvink & Paul, MEMS: A Practical Guide to Design, Analysis, and Applications

Kovacs, Micromachined Transducers Sourcebook

Liu, Foundations of MEMS, 2nd edition

Senturia, Microsystem Design

Madou, Fundamentals of Microfabrication

Young, Roark’s Formulas for Stress and Strain

 

Grading

 

EE147

EE247A

Homework

35%

35%

Midterm

25%

15%

Final 

40%

30%

Final Project

 

25%

 

homework

Collaboration is encouraged; copying is not.  Explaining how you solved a problem to someone is fine; handing them your solutions is not.  Helping someone debug their design is fine; giving them your design is not.

Write your own answers without staring at someone else's. (see cheating policy above)

Lectures

My nearly indecipherable notes are generally online a day or two after class (linked below).



Schedule

Week

Date/

Notes

Topic

Reading / Resources

homework

1

8/26

8/28

Logistics; What is MEMS; Applications; Course overview, history, & examples

Single-mask SOI process

Single-mask SOI motor

Jaeger: skim chapter 1, and 2.1—2.4.  Make sure that you understand Figures 2.{2, 6, 7, 9+11}

 

2

8/30

9/2

9/4

Single-mask capacitive accelerometer

simple differential capacitive accelerometer

Electrostatic Actuators; Surface micromachining; three-mask process;

Jaeger: 11.1, 11.4

HW1

HW1 rubric

3

9/7

9/9

9/11

Labor Day

Surface micromachining: 1 and 2 poly processes

Standard Processes: SOIMUMPs, POLYMUMPs, polyMUMPS pictures, SOIMUMPS pictures; stress and strain

polyMUMPS thermal actuator

Sandia motor videos

planar robot video

HW2

HW2 rubric

self grade form

4

9/14

9/16

9/18

beam bending,

flexure design, torsion,

residual stress, stress gradients, buckling

Euler-Bernoulli beams

optional reading: Silicon Failure

HW3

HW3 rubric

5

9/21

9/23

9/25

Couette damping, (squeeze-film damping)

Resonance, transfer function

Tang, Nguyen, Howe comb drive resonator

Inchworms

HW4

HW4 rubric

6

9/28

9/30

10/2

Transfer function

 

7

10/5

10/7

10/9

Self-sustaining oscillators; Piezoresistivity, strain gauges

Wheatstone, TCR

thermal conduction, black body radiation

Fall 2013 midterm

Fall 2014 midterm

Fall 2015 midterm

Fall 2016 midterm

TCR Gauge factor Black body

HW5

HW5 rubric

8

10/12

10/14

10/16

Midterm

Rayleigh-Ritz, Paschen, Field emission

stability and pull-in, spring tuning

2016 Midterm solutions

247A project

HW6

HW6 rubric

9

10/19

10/21

10/23

MEMS fabrication, HNA, XeF2

bulk micromachining: crystal planes, etch rates

KOH etching

Jaeger Ch 11

HW7

HW7 rubric

10

10/26

10/28

10/30

Plasma etching

Standard processes; Semiconductors: Bohr à diodes

Ion implantation; diffusion; thermal oxidation; diffused piezoresistor

Jaeger Ch 6

HW8

HW8 rubric

11

11/2

11/4

11/6

CMOS process cross section

Standard processes: CMOS MEMS

fabrication: evaporation, liftoff

Invensense/Nasiri

Nasiri paper

CMOS-MEMS

Fedder2002 Intel 22nm Jaeger 9.3

HW9

HW9 rubric

12

11/9

11/11

11/13

Guest Lecture: Prof. Ming Wu, Optical MEMS

fabrication: sputtering

Veterans Day – Academic and Administrative Holiday

Wikipedia:sputter deposition

 

13

11/16

11/18

11/20

plasma etching; RIE ; DRIE

LPCVD;

Residual stress

Jaeger

 

14

11/23

11/25

11/27

Guest Lecture: Prof. Dorian Liepmann, “Micro-fluid dynamics”

Thanksgiving non-instructional day

academic holiday

 

15

11/30

12/2

12/4

LPCVD: mousebites, sidewalls

thermal noise

noise equivalent input; stiction

 

16

12/7

12/9

12/11

RRR week; 247 final project presentations.  147 students strongly encouraged to attend.

247: Final projects due 5pm Monday 12/7 by both email and hardcopy at 512 Cory Hall.

Fall2013 Final

Fall2014 Final

2015 Final

2015 Final Solutions

2016 Final

2016 rubric