Subject: | |
From: | |
Date: | Thu, 01 May 97 16:59:42 EST |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
I recently commented on the effects of no-clean on our boards running
at 622MHz. If I mentioned conductive, I apologize. I meant to say
capacitive. The specific area affected on the board was a high
impedance analog circuit. The no-clean residue caused a leakage path
that acted like a capacitor. Hope this clears up some confusion.
[log in to unmask]
______________________________ Reply Separator _________________________________
Subject: Re: Rf interference from No cleans (GEN/ASSY/DES)
Author: [log in to unmask] at INTERNET
Date: 5/1/97 4:24 PM
Our assemblies operate as high as 12 GHz with no problems over the last
five years of no clean assembly.
Phil
-----
At 12:07 PM -0400 4/30/97, Brian Bauer wrote:
>Hello,
>
>Does anyone have any information on the effect of no clean residues on RF.
>I am interested at what frequency interference begins (if any) and what typ=
e
>of device you are talking about ie. phine, radio etc.. I am interested in
>both PCB and Hybrid Thick Film (alumnia) applications. Also, is anyone usin=
g
>no cleans in the Gigahertz level - if so what level?
>
>Thanks
>
>Brian
>
>***************************************************************************
>* 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] *
>***************************************************************************
***************************************************************************
* 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] *
***************************************************************************
***************************************************************************
* 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] *
***************************************************************************
|
|
|