Hi Sona,
The answer to you question is that dielectric constant is
the measure of how good of an electrical insulator a material is. The lower the
number the better the insulating properties of a material. The higher the
number the better a material is at conducting electric current. From this
spec it looks like you can use standard garden variety FR-4
Regards,
Scott Kramer
Sales Engineer
ThermalWorks, Inc.
714 Adams Avenue, Suite
209
Huntington Beach, CA. 92648
Tel. +1 (714) 960-5152
x203
----- Original Message -----
Sent: Friday, May 03, 2002 10:04 AM
Subject: [TN] Dielectric Constants For
Core and Prepreg
Hi
For a 4 layer pcb with .062 overall thickness,
what does it mean when the specifications call out for "Dielectric Constant
for core & prepeg (e) 4.3min to 5.3 max.
Thanks for your help.
Sona Sitapara
Fineline Circuits Inc.
(215) 364-3311