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## Homework Statement

The diagram:

http://images.fr1ckfr4ck.fastmail.fm/probC.jpg

This MOSFET has the following parameters:

- |V
_{T}| = 0.6V - μ
_{p}C_{ox}= 100 (μa/V^{2}) - L = 0.25μm
- λ = 0

Establish a drain current of 0.8 mA and a voltage V

_{D}of 1.5V.

Determine the transistor width W, and the resistance of resistor R, that meet the above drain current and voltage.

## Homework Equations

see below

## The Attempt at a Solution

First I dove into my bag of equations for the one involving MOSFETS which had both μ

_{p}C

_{ox}and W/L in it.

The best looking one I found was;

I

_{D}=(1/2)μ

_{n}C

_{ox}(W/L)V

^{2}

_{OV}

and when I fill in the appropriate values, I get a width that just doesn't make sense. I don't think I'm using the right equation but I don't know where to look.

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