[SI-LIST] Re: dielectric material-Isola IS620
- From: ma mu <sitaskina@xxxxxxxxx>
- To: bill_hargin@xxxxxxxxxxx, tom@xxxxxxxxxxxxx, si-list@xxxxxxxxxxxxx
- Date: Fri, 4 Mar 2005 09:29:44 -0800 (PST)
Thanks a lot for everybody's feedback.
ma
-
-- "Hargin, Bill" <bill_hargin@xxxxxxxxxxx> wrote:
> A nice materials paper by Rick Hartley is up on Lee
> Ritchey's site:
>
www.speedingedge.com/PDF-Files/Materials_RickH2.pdf=20
>
> This sparked my curiosity, so I looked it up...
>
> Loss
> Er Tangent
> Nelco 4000-13 3.7 0.01
> Nelco 4000-13SI 3.5 0.009
> Isola IS620 3.7 0.0089
>
> Almost looks like a wash, from a loss tangent
> standpoint. Isola's Er,
> by the way, is 3.7 not 3.5, so the difference you're
> seeing is probably
> due to the lower dielectric constant. =20
>
> There's a good Rick Hartley article on this subject
> (though it doesn't
> mention Isola, per se) on Lee Ritchey's Website:
>
http://www.speedingedge.com/PDF-Files/Materials_RickH2.pdf
>
> Bill Hargin
> Product Manager - HyperLynx
> Mentor Graphics Corp.
> 425-497-5079 - Direct
>
> > -----Original Message-----
> > From: si-list-bounce@xxxxxxxxxxxxx=20
> > [mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of
> Tom Dagostino
> > Sent: Thursday, March 03, 2005 5:12 PM
> > To: sitaskina@xxxxxxxxx; si-list@xxxxxxxxxxxxx
> > Subject: [SI-LIST] Re: dielectric material-Isola
> IS620=20
> >=20
> > I don't know the numbers but I'll bet the losses
> are lower in=20
> > the Nelco material.
> >=20
> > Tom Dagostino
> > Teraspeed Labs
> > 13610 SW Harness Lane
> > Beaverton, OR 97008
> > 503-430-1065
> > http://www.teraspeed.com
> > tom@xxxxxxxxxxxxx
> >=20
> > Teraspeed Consulting Group LLC
> > 121 North River Drive
> > Narragansett, RI 02882
> > 401-284-1827
> >=20
> > Teraspeed is the registered service mark of
> Teraspeed=20
> > Consulting Group LLC
> >=20
> > -----Original Message-----
> > From: si-list-bounce@xxxxxxxxxxxxx
> > [mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of
> ma mu
> > Sent: Thursday, March 03, 2005 5:06 PM
> > To: si-list@xxxxxxxxxxxxx
> > Subject: [SI-LIST] dieclectric material-Isola
> IS620
> >=20
> >=20
> > Hi all,
> >=20
> > I have a question, why Isola IS620 is cheaper( 1/2
> price)=20
> > than nelco4000-13 , although the dielectric
> constant( 3.5) is=20
> > kind of same .
> >=20
> > ma
> >=20
> >=20
> >=20
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