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SMT furnace temperature (lead-free) BGA IC components ... How to debug the furnace temperature ... How to set the temperature of each area in Zone 7 or Zone 9, is there a fixture? ..
First of all, the initial basis for setting the furnace temperature is the curve provided by the solder paste supplier. This is a basic basis.

Then the furnace temperature will be roughly adjusted according to the special requirements of substrate, component size and components.

Finally, accurately adjust the furnace temperature to meet customer requirements.

Secondly, according to the furnace temperature of similar substrates, the one-time success rate is higher.

Third, the debugging of furnace temperature is largely the embodiment of experience, and there is no shortcut.

Four, pay attention to the debugging temperature of the substrate is the same as the actual production state, whether there is a fixture is determined according to the production conditions.

Above, personal opinion.