Estimated colleagues,
In some cases component´s thermal planes Au finished which will be
solded on ENEPIG TMM10 pcb where coplanarity is very critical then
pretining modify undesirably coplanarity.
Taking into account this fact, we have reflowed the component (solder
the earth plane to pcb) without pretining and compare soldering under RX
to another done with pretining. Have found out no difference between
both cases (with and without pretining).
Furthermore will run some tracking tests to verify joint.

My question:

Do you know or have any background experience on soldering Au finished
thermal planes without pretining?
In all other cases of Au components terminals finished, we always
remove Au.
 
brgds,Ricardo


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