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Subject:	0402 landpatterns
From:	Pete <[log in to unmask]>
Reply To:	(Designers Council Forum)
Date:	Wed, 20 Oct 2010 08:39:14 -0500
Content-Type:	text/plain
Parts/Attachments:	text/plain (24 lines)

Andre,

Use a footprint per IPC-7351.  Your assembly engineer will need to specify 
home plate or H shaped stencil apertures.  As long as the process is good, you 
shouldn't have tombstoning problems with 0402.

Download an IPC-7351 land pattern calculator here: 
http://www.mentor.com/products/pcb-system-design/pcbmatrix

But make sure you also get a copy of IPC-7351, to help understand the 
information you need to input to the calculator, and how calculations are 
done, in case you need to tweak any settings.

Pete

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