TECHNET Archives

June 1997

TechNet@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 m0wgOsH-000BjSC; Tue, 24 Jun 97 01:14 CDT
Old-Return-Path:
<[log in to unmask]>
Date:
23 Jun 97 23:22:34 -0800
>From willli Tue Jun 24 01:
15:00 1997
From [log in to unmask] Tue Jun 24 16:
35:49 1997
Resent-From:
[log in to unmask]
Message-ID:
<[log in to unmask]>
MIME-Version:
1.0
Status:
O
X-Mailing-List:
<[log in to unmask]> archive/latest/13603
TO:
Ed Cosper <[log in to unmask]>
Return-Path:
<TechNet-request>
X-Status:
Precedence:
list
X-Loop:
[log in to unmask]
Resent-Message-ID:
<"Bfa6V2.0.s78.KNshp"@ipc>
Content-type:
text/plain; charset=us-ascii
Subject:
Re: FAB: tin only over copper on antenna design
From:
"Thomas E. Waznis" <[log in to unmask]>
Content-transfer-encoding:
7bit
In-Reply-To:
<01BC7FED.96D74BC0@gateway>
X-Mailer:
THOR 2.5 Elysium (Amiga;TCP/IP)
Resent-Sender:
TechNet-request [log in to unmask]
Parts/Attachments:
text/plain (31 lines) 



>What I am wondering is three things..

>1. Should it be necessary to bake teflon immediately prior to HAL?

Only if you have some sort of warpage issue (no moisture absorbtion).

3. From a design/reliability standpoint, would leaving only a tin plated
>finish over the copper antenna be a problem.

I've seen several boards with unfused tin/lead on then per customer request.
They were used this way but considering the crumbly nature of tin,
tin/lead I wouldn't like to do this unless the customer was confident.

Thomas E. Waznis

Halllmark Circuits Inc.

***************************************************************************
* TechNet mail list is provided as a service by IPC using SmartList v3.05 *
***************************************************************************
* To subscribe/unsubscribe send a message <to: [log in to unmask]>   *
* with <subject: subscribe/unsubscribe> and no text in the body.          *
***************************************************************************
* If you are having a problem with the IPC TechNet forum please contact   *
* Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask]      *
***************************************************************************

ATOM RSS1 RSS2