Low Pass Filter using different technologies

[Salar Parast]

Hello All,

For a project I would like to analysis the effect of different technologies (50nm vs 300nm) on a low pass filter. My biggest confusion is, how do I implement the low pass filter and do the layout of it. What variable (length, width, etc) is changing on the capacitor and the resistor? I know if I had a transistor my channel length would be changing by the different technologies, but for resistor and capacitor I have no clue what I have to change. 

Any help or suggestion would be appreciated.

Thank you all for your help.

Cheers,

Salar

[Gavin Abo]

I believe the variables would be length, width, height, and resistance
or capacitance [resistance/volume for the resistor and
capacitance/volume for the capacitor (of the poly) , where volume =
length*width*height].

The resistive voltage divider tutorial and the poly1–poly2 capacitor and
RC circuit tutorials might help at:

http://cmosedu.com/videos/electric/electric_videos.htm