DESIGNERCOUNCIL Archives

1996

DesignerCouncil@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Condense Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Received:
by ipc.org (Smail3.1.28.1 #2) id m0uLsMS-0000CqC; Tue, 21 May 96 09:24 CDT
Old-Return-Path:
Date:
Tue, 21 May 1996 10:20:04 -0400
Precedence:
list
X-Sun-Charset:
US-ASCII
From [log in to unmask] Tue May 21 10:
05:00 1996
Cc:
X-Status:
Status:
O
X-Mailing-List:
<[log in to unmask]> archive/latest/4242
TO:
Return-Path:
<TechNet-request>
Resent-Message-ID:
<"vnJl_3.0.oNM.V8Ten"@ipc>
Subject:
From:
X-Loop:
Resent-From:
Resent-Sender:
TechNet-request [log in to unmask]
Message-Id:
Parts/Attachments:
text/plain (17 lines)

  Avner--
         If I am wrong, I hope someone out there will make me smarter, but
   the dielectric "CONSTANT" is just that--constant for that type of material.
   IMOP, when calculating impedance of microstrip or stripline, the dielectric
   constant of a material doesn't change, less the material's unique tolerance
   range REF: IPC-D-275 Table 3-2. Therefore, unless proven wrong, the constant
   DOES NOT change, but the impedance value WILL vary depending on which 
   formula you are using depending on you pwb construction. Hope that helps.
   If wrong, please correct me via E-mail,

                             Bob Vanech
E-Mail : [log in to unmask]
   



ATOM RSS1 RSS2