TECHNET Archives

April 1998

TechNet@IPC.ORG
Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

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

Print Reply
Subject:
Re: CALL FOR PAPERS: IPC 1998 Surface Finishes Conference
From:
Eddie Brunker <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 20 Apr 1998 09:08:53 +0100
Content-Type:
text/plain
Parts/Attachments:
text/plain (120 lines) 
At 18:23 18/04/98 +1000, you wrote:
>Ed ,


>If you have to assemble, switch, contact, not oxidize (as some), stay
>level (helps) ; all on one board ; you have little choice ; but try
>harder .

May I ask you for more details on these points. Particularly switch and contact.


>Crack your mobile open and start the education .

I don't consider mobile phones to be complex assemblies and see no advantage
to using alternatives, other than situations where direct contact without
solder is required.


>We all love HASL as much as you do . But ..........
>If you do straight solder only , try the new AlphaLevel , it solders
>almost as well .

What about the long term reliability of a silver based product? What about
the difficulty the fabricators have getting the chemistry to work, and again
from their point of view the problems associated with a silver based technology.


Regards,

>See you               paul
>
>
>>----------
>>From:  Eddie Brunker[SMTP:[log in to unmask]]
>>Sent:  Friday, 17 April 1998 21:40
>>To:    [log in to unmask]
>>Subject:       Re: [TN] CALL FOR PAPERS: IPC 1998 Surface Finishes Conference
>>
>>At 21:46 16/04/98 -0500, you wrote:
>>>
>>>
>>>
>>>
>>>Hi TechNet -
>>>
>> HASL finishes are quite
>>>robust in many assembly operations but can be equally non-robust in other
>>>assembly operations.
>>
>>It would be useful to have a discussion on the specific situations where
>>this is the case.
>>
>>
>>In addition there are a number of IPC committees (e.g.
>>>ANSIJ-STD-002/003, and the Alternative Solderable Finishes task group) that
>>>have an active interest in the latest developments in the alternative
>>>finishes activities.
>>
>>I agree that we must look to the future. But why look for complex answers
>>when simple ones already exist.
>>
>>As stated earlier, education may hold the key, but that's not as exciting or
>>glamorous as a new PCB finish.
>>
>>
>>>
>>>Dave Hillman
>>>Rockwell Collins
>>>[log in to unmask]
>>>
>>>
>>
>>P.S. Again, please excuse any illmannered ranting and raving on my part
>>earlier.
>>
>>################################################################
>>TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
>>################################################################
>>To subscribe/unsubscribe, send a message to [log in to unmask] with following
>>text in the body:
>>To subscribe:   SUBSCRIBE TechNet <your full name>
>>To unsubscribe:   SIGNOFF TechNet
>>################################################################
>>Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional
>>information.
>>For the technical support contact Dmitriy Sklyar at [log in to unmask] or
>>847-509-9700 ext.311
>>################################################################
>>
>>
>
>################################################################
>TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
>################################################################
>To subscribe/unsubscribe, send a message to [log in to unmask] with following
text in the body:
>To subscribe:   SUBSCRIBE TechNet <your full name>
>To unsubscribe:   SIGNOFF TechNet
>################################################################
>Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional
information.
>For the technical support contact Dmitriy Sklyar at [log in to unmask] or
847-509-9700 ext.311
>################################################################
>
>
>

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet 
################################################################
Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information.
For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311
################################################################

ATOM RSS1 RSS2