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Reply To: | TechNet Mail Forum. |
Date: | Mon, 18 Aug 1997 10:22:53 -0400 |
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Hello again,
Bridges could be as a result of heatsinking. Is the component large? Have
you played with the preheat? I apologize if this is basic but run a plot
of the heat rise and see if perhaps the component temp causes the solder to
freeze when it contacts the lead in question. If all else fails I could
send you a different flux.
Denis
At 11:13 AM 8/15/97 -0400, you wrote:
>Hello,
>
>This question might sound pretty basic to many of you but here it is:
>
>We have a brand new wave soldering machine but we are having problems
>getting rid of bridges. We tried to increase (or lower) conveyor speed, add
>more flux, lower the wave, but nothing seems to work. Rotating the PCB 180o
>doesn't help either. The bridges are either in the X or Y direction
>(sometimes both) and, in one case, the connector leads have a pitch of about
>0.080".
>
>Any suggestions, basic theory about bridges would be appreciated.
>
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>
>
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