David:
                Check on Electrovert web page. There is a sheet labeled
Problems and Solutions on Reflow and Wave Soldering.
        Causes for bridging may be:  wave could be too high ( the rule of
thumb is top of the wave should go up to half the thickness of the board),
board speed too fast, vibration, not enough flux, preheat temp low or
high.....to name some.    There is more than one provable cause for
bridging.  Good luck.
        Regards,
        Ramon

> -----Original Message-----
> From: D_bonilla [SMTP:[log in to unmask]]
> Sent: Friday, September 19, 2003 4:36 PM
> To:   [log in to unmask]
> Subject:      [TN] Solder shorts defects in the passives components at the
> solder side in double side board through the wave solder
>
> Hi I am having solder short defects on the bottom side with SMD devices
> that
> run through the Wave solder. May you let me know any IPC guildelines about
> the spacing, orientation or any other design guidelines for avoid solder
> defects with SMD devices for double side boards that run through wave
> solder.
> Thanks David
>
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