Is there any possibility of eliminating the clinch altogether?  If the holes
are plated through, was there some other reason for having the clinch?

Jan Pelchat

> -----Original Message-----
> From: Mike Sewell [SMTP:[log in to unmask]]
> Sent: Thursday, September 28, 2000 4:57 PM
> To:   [log in to unmask]
> Subject:      Re: [TN] Lead Clinching over soldermask
>
> We have gone to a partial clinch already... and shortened lead protrusion
> to
> ~ 50 thou. this has helped but hasn't eliminated the problem.  I think we'
> may be bending leads during handling as this board goes through axial,
> CS400,
> masking, hand stuff after DIP and prior to wave.  Plus we still have the
> axial & CS400 parts that may get clinched towards a trace - we've tried to
> tweak to partial clinches there as well. 600 - 700 parts on the board
> THOUSANDS of leads, poor spacing, undersized holes/oversized parts,
> another
> board where DFM wasn't exercised...
>
> - Mike -
>
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