Quad QSP and QSV in series. The QSV places the BGAs and most of the fine
pitch components.

Let me clarify something from my previous post. When I say I have not found
a compelling reason to use locals on .5mm leaded devices, it is because I do
not see a difference in placement accuracy with and without the locals. I
have tried it both ways. That is not to say the machines are always dead on
with accuracy, they aren't. We do have to sometimes tweak fine pitch parts
into place. I don't necessarily think we should have to, but we just haven't
gotten there yet. I would be interested in hearing other experiences with
placement accuracy.


Bob


Robert Barr
Manufacturing Engineering
Formation, Inc.
Voice: 856-234-5020 x3035
Fax: 856-234-6679
email: [log in to unmask]

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Mengers, William D.
Sent: Thursday, May 10, 2001 10:46 AM
To: [log in to unmask]
Subject: Re: [TN] Dumb question


Bob,

What kind of pick and place machine are you using?

Bill

---------------------------------------------------------------------------------
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
---------------------------------------------------------------------------------