CMOS Inverter Layout

Name: CMOS Inverter Layout

Status: complete

Affiliation: 18-220 Electronic Devices and Analog Circuits Lab 3

Group members: Frank

Start: 2/9/2011

End: 2/9/2011

Description: Using L-Edit (layout editor), designed a minimal CMOS inverter using n-channel and p-channel transistors. The transistor depiction of an inverter is as follows:

We were given the constraints of λ = .5 uM, Z_n = 20 uM = 40 λ, and Z_p = 60 uM = 120 λ. In both channels, L = 2 (minimum possible L) because there were no additional constraints on it.

Lessons Learned:

-introduction to layout design in L-Edit

-minimal design rules

-using DRC to check whether or not I pass minimal design rules

-taking layout cross sections

-testing separate components helps identify which part of your layout is wrong - this applies to EVERYTHING, including unit testing, classes, modules, etc.

yes, that's a big X through our entire design...

designed whole layout in one shot, then used the DRC tool. frustration ensued.

finalized inverter layout

Mixing Music 1

First few songs made using Virtual DJ.

Break Your Blue

In this song, I tried to line up the two beats. Resulted somewhat nicely in a "canon" but not really.

Run Kid Run

Random effects

King of Anything

Had a flanger on the whole time. Interesting sound. Also tried using beat patterns but still need to find out more about how they're generated. Another effect I wanted to try is dubstep, so I need to find the files for that.

Overall, I'm thinking about using the Virtual DJ software to slap together songs (there's only a limit of two tracks though it seems...) and Audacity for fixing up the signals.

Another software that I need to look into is Acoustica Mixcraft, which supports multiple tracks but for me has a steep learning curve.

Something Cool 1

I've decided to also post interesting videos, pictures, whatever. These will have titles "Something Cool N".

Today's subject is a cool trick for seeing infrared light.

Infrared is a type of electromagnetic radiation. It is invisible to the naked eye because it has a longer wavelength than visible light, so it is outside of our range. It is commonly depicted as thermal radiation, such as those airport machines that check your body temperature to make sure it's not abnormally high. Although our eyes aren't capable of seeing infrared light on their own, cameras are able to detect it thanks to their infrared filters.

Oooo purple.