Dave,
Good response.You better hurry though if you want a Mountain Dew,since Doug
has turned into a two-headed monster he is drinking them at twice the rate.
Dewey

> -----Original Message-----
> From: David Hillman [SMTP:[log in to unmask]]
> Sent: Tuesday, December 18, 2001 7:31 AM
> To:   [log in to unmask]
> Subject:      Re: [TN] Reliability of hand soldered solder joint.
>
> Hi Vit! Let me restate your question and come at it from a different
> angle:
> " Would you expect a solder joint which has proper wetting and acceptable
> solder geometry if created by either manual soldering or machine soldering
> to perform differently for a given use environment?". My answer would be
> no
> - the initial solder joint metallurgy would be different for a manual
> solder joint and a machine solder joint but those differences equalize
> within a week of assembly. If you follow best industry soldering practices
> (using IPC JSTD 001 and IPC-A-610 requirements/recommendations) you would
> not expect a difference in performance between the two methods. However,
> with all that being said, the very nature of manual soldering leads to a
> smaller window of consistency and repeatability in contrast to machine
> soldering practices.  You may have a larger failure rate for manual
> soldering processes only because of the consistency window. Hope this
> helps.
>
> Dave Hillman
> Rockwell Collins
> [log in to unmask]
>
>
>
>
> "Sklenar Vit (RBAU-EB/MGE4)" <[log in to unmask]>@ipc.org> on
> 12/17/2001 05:43:52 PM
>
> Please respond to "TechNet E-Mail Forum." <[log in to unmask]>
>
> Sent by:  TechNet <[log in to unmask]>
>
>
> To:   [log in to unmask]
> cc:
>
> Subject:  [TN] Reliability of hand soldered solder joint.
>
>
> Hi Techneters,
> does somebody have statistical data or  information regarding the quality
> of
> a hand soldered joint. What is the expected failure rate compared with a
> solder joint formed by machine? Help!
>
> Thank you
>
> Regards
>
> Vit Sklenar MGE4VS
> T: (61 3)9541 7734  F: (61 3) 9541 3909
> e-mail work:   [log in to unmask]
> e-mail home:  [log in to unmask]
> > Robert Bosch (Aust) ,
> 1555 cnr.Centre and McNaugton Road,
> > Clayton , VIC 3169, Australia
> >
>
> --------------------------------------------------------------------------
> -------
> Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
> To unsubscribe, send a message to [log in to unmask] with following text in
> the BODY (NOT the subject field): SIGNOFF Technet
> To temporarily halt delivery of Technet send the following message: SET
> Technet NOMAIL
> Search previous postings at: www.ipc.org > On-Line Resources & Databases >
> E-mail Archives
> Please visit IPC web site (http://www.ipc.org/html/forum.htm) for
> additional
> information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700
> ext.5315
> --------------------------------------------------------------------------
> -------

---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------