Lab 5 - EE 421L 

Authored by Biruk Gebremeskel

Email: gebreb1@unlv.nevada.edu

October 10, 2018

  

Lab description:

The purpose of this lab was to design, layout, and simulate a CMOS inverter.

Pre-Lab Work:

I backed up my work from my previous labs in my dropbox account.

I went through and finished Tutorial 3.

http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/prelab%20schem.JPG
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/prelab%20sim.JPG

 

Actual Lab Work:

12u/6u Inverter( W of PMOS/W of NMOS):

Schematic
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/12u-6u%20inverter%20schematic%20m1.JPG
Symbol
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/12u-6u%20inverter%20symbol%20m1.JPG
Layout
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/12u-6u%20inverter%20layout%20m1.JPG
Extracted
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/12u-6u%20inverter%20extracted%20m1.JPG
DRC
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/12u-6u%20inverter%20DRC%20m1.JPG
LVS
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/12u-6u%20inverter%20LVS%20m1.JPG

48u/24u Inverter ( i.e 12u/6u with M = 4):


Schematic
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/48u-24u%20inverter%20schematic.JPG
Symbol
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/48u-24u%20inverter%20symbol.JPG
Layout
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/48u-24u%20inverter%20layout.JPG
Extracted
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/48u-24u%20inverter%20extracted.JPG
DRC
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/48u-24u%20inverter%20DRC.JPG
LVS
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/48u-24u%20inverter%20LVS.JPG

Simulations:

A parametric analysis was performed to simplify and see the different capacitive loads ranging from 100fF to 100pF with  a total of 4 step size together.

Spectre and UltraSim simulations of 12/6u inverter:

Schematic
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/12-6u-sim%20schematic.JPG
Spectre Simulation
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/12-6u-spectre%20simulation.JPG
UltrasSim Simulation
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/12-6u-Ultera%20Sim%20simulation.JPG

Spectre and UltraSim Simulations of 48u/12u Inverter:

Schematic
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/48-24-final-schematic.JPG
Spectre Simulation
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/48u-24u%20spectre%20simulation.JPG
UltraSim Simulation
http://cmosedu.com/jbaker/courses/ee421L/f18/students/gebreb1/lab5/48u-24u%20Ultera%20sim%20simulation.JPG

The cells used to generate the images used on this webpage can be found in lab5.zip

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