Charles Barker@I-O INC
01/19/98 09:57 AM

Some questions that come to mind:
1. What are the .050" (or do you really mean .50") devices you are running?
SOIC's, J-Leaded Quad devices, Gull-wing quad devices?
2. If the devices are SOIC's, what is the orientation of the part to the
direction of movement of the conveyor?
3. Do you have or can you add to the artwork, "robber pads" on the trailing
edge of the parts?
4. What type of flux are you using?
5. How are you applying the flux?
6. What is conveyor speed?
7. What is pot temperature?
8. Is this bridging in just one area of the board or all over the board?
9. What is themperature of the top side of the board just before it goes
into the wave?

I am sure others may need some additional information in order to offer you
some suggestions too.

Charlie B.



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To:   [log in to unmask]
cc:    (bcc: Charles Barker/US/I-O INC)
Subject:  [TN] Re. Wave solder machine


 The problem I ran into running 0.50" SMT over the
wave was massive bridging. If you find out how to
do it please let me know.

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