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Date: | Mon, 10 Aug 2009 09:56:04 +0100 |
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This is part of an experiment for Kim S at IPC for a defect blog for the
website. So thought I would pick up on a TechNet question to see if it
worked OK with the "Strawberry" users?
See my feedback video www.bobwillis.co.uk/videoclips/DrBob180QFNLGA.wmv
Many thanks
Bob Willis
2 Fourth Ave, Chelmsford, Essex, CM1 4HA England
Tel: (44) 1245 351502
Fax: (44) 1245 496123
Mobile: 07860 775858
www.ASKbobwillis.com
www.SolderingStandards.com
PCB Design for Manufacture & Assembly Workshop 15th October
www.ASKbobwillis.com
PCB Inspection & Quality Control Workshop 3rd November
www.ASKbobwillis.com/faworkshops.pdf
Book Bob's "Step by Step Failure Analysis Workshop" 4th November
www.ASKbobwillis.com/faworkshops.pdf
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of GRIVON Arnaud
Sent: 07 August 2009 11:04
To: [log in to unmask]
Subject: Re: [TN] Actel QFN180 Assembly
Coming back on an old post from Steve (at his former employer...).
Does anybody have good stencil rules for the assembly of multi-row QFNs and
especially triple-row such as ACTEL QFN180?
Like Steve and probably many others, we tried to find the right aperture
balance between I/Os and central thermal pad without success...
A. Grivon
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Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
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