According to a reference I have, straight Polyimide resin (MIL spec
designation GC) has a dielectric constant of 3.5.
Board materials using Polyimide range from 3.0 to 4.7, depending on the
reinforcing material and ratio between the two.
**** To unsubscribe from si-list: send e-mail to email@example.com. In the BODY of message put: UNSUBSCRIBE si-list, for more more help, put HELP. si-list archives are accessible at http://www.qsl.net/wb6tpu/si-list ****