Look at IPC-2221A  8.1.8 (page 58) & Figure 8-4.

My regards,
Steve Smith, C.I.D.
Product Engineer

Staco Energy Products Co.
301 Gaddis Boulevard.
Dayton, OH 45403
Telephone: (937) 253-1191 Ext. 158
Fax: (937) 253-1723
E-mail: [log in to unmask]  
Web Site: www.stacoenergy.com 
& www.stacopower.com 
 


> -----Original Message-----
> From: DesignerCouncil [mailto:[log in to unmask]]On 
> Behalf Of Gary
> M. Koven
> Sent: Monday, March 28, 2005 1:11 PM
> To: [log in to unmask]
> Subject: [DC] Conductive pattern to mechanical hardware clearance
> 
> 
> Which IPC specification will show the minimum clearance from 
> conductive
> pattern to mechanical hardware such as swage standoffs?
> 
> Right now I have approximately 0.025in (0.635mm) from via pad edge to
> standoff lip edge, and want to make certain that distance will be
> sufficiently robust for production.
> 
> The manufacturers' datasheets don't specify a recommended 
> clearance, and
> neither do the IPC-222X series specs.
> 
> Thanks,
> 
> ======================
> 
> Gary M. Koven
> Engineering Services Manager
> Dynazign, Inc.
> 806 Tyvola Road, Suite 100
> Charlotte, NC 28217
> P: 704.405.1234 x210
> F: 704.405.1402
> http://www.dynazign.com/
> 
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