LED reflow:
Follow the component data sheet information to begin with.
Many can stand only 1 reflow pass.
Stencil aperture may require changing.
The flat bottom on many of these devices will cause paste to squeeze to the
center with typical openings.
Treat as a thick film resistor with a different pad size.
I changed one display board to reverse home plate last year, eliminating
the mid chp solder balls..

Larry Dzaugis


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