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October 1997

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Subject:
Re: Land to Lead Ratio
From:
Jim Mathis <[log in to unmask]>
Reply To:
TechNet Mail Forum.
Date:
Thu, 9 Oct 1997 17:35:21 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (17 lines) 
I determine the minimum amount of space between pads our manufacturing can
tolerate during reflow, then maximize the land width.  For us this minimum
spacing is 8 mils.  For a .5mm pitch part with 8 mil wide leads, this results
in a 12mil wide pad.

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