RE: [SI-LIST] : Upper limit of interplane capacitance

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From: Bradley S Henson ([email protected])
Date: Thu Jun 15 2000 - 09:16:36 PDT

From "Electronic Packaging of High Speed Circuitry", Konsowski and Helland,
pg 42:

" The dominant effects are usually atomic polarization, electronic
polarization, and orientation polarization." They go on to give a brief but
interesting definition for each of these conditions that produce frequency
dependent losses as well as some measurement techniques.

A pretty good SI book to have on your shelf.

Brad Henson, Raytheon Systems Co.

Larry Smith <[email protected]> on 06/15/2000
08:46:32 AM

Please respond to Larry Smith <[email protected]>

Sent by: [email protected]

To: [email protected], [email protected]

Subject: RE: [SI-LIST] : Upper limit of interplane capacitance

Greg - it is a bit of a stretch, but if I go back to my Quantum
Mechanics from years ago, I think the dielectric loss is more of
a sonic phenenon than a photo electric effect. With the photo
electric effect, a packet of energy is obsorbed that is exactly
right to lift an electron from one energy state to another. When
the electron falls back it emits a photon.

With dielectric loss, molecules physicaly vibrate more like a
sound wave. The losses show up as thermal rather than electromagnetic
energy. But you are correct, dielectric loss is a material property.

I'm sure somebody will tell me if this is completely off base...

Larry Smith
Sun Microsystems

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