TECHNET Archives

September 2002

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:
From:
Steve Thomas <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 6 Sep 2002 11:44:29 -0700
Content-Type:
text/plain
Parts/Attachments:
text/plain (17 lines)
Is anyone successfully using a high temperature paste to do bottom side SMT reflow, thereby avoiding the glue/cure/wave process?  The reason I ask is that we may be asked to build a board with roughly 1800 bottom side SMT (none topside, mostly 0603s, 0805's, maybe 150 SOIC's from 8-16) with a few hundred top side pth, axial and radial.

It's a long story as to why I would ask this, and it's not something I wish to get into here (suffice it to say that the people that needed to read Earl's book (see, I knew I could fit it in somewhere) didn't, but the long and short of it is I cringe at both the throughput issues with the dispenser (15k/hour) and the yield problems associated with gluing and waving rather than reflowing.  We do NOT have AOI, for what that's worth.

Have a nice weekend, all.....

---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8e
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 or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/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
---------------------------------------------------------------------------------

ATOM RSS1 RSS2