From: Jim Thompson
Subject: Re: Spherical resistor -- different problem
X-Newsreader: Forte Agent 1.91/32.564
Date: Mon, 02 Dec 2002 20:09:01 GMT
NNTP-Posting-Date: Mon, 02 Dec 2002 15:09:01 EST
Organization: Cox Communications
On Mon, 02 Dec 2002 11:44:44 -0800,
"Christopher R. Carlen" ,
In Newsgroup: sci.electronics.design,
Entitled: "Re: Spherical resistor -- different problem",
Wrote the following:
|Jim Thompson wrote:
|> I regularly use *circular* resistors in I/C designs when I need low
|> value, but reasonably accurate, resistors, with moderately high sheet
|> It should be trivial for you young bucks to calculate a resistor with:
|> Inner contact radius, Ri
|> Outer contact radius, Ro
|> Sheet Resistivity, RhoS
|What's "sheet resistivity", and what are the units?
Sheet resistivity = volume resistivity divided by thickness. Units
|Is this resistor a pair of concentric cylinders, or something else?
Concentric circles, but flattened into two dimensions.
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| Jim-T@analog_innovations.com Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
For proper E-mail replies SWAP "-" and "_"
I love to cook with wine. Sometimes I even put it in the food.