Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


PLCC Solder fillet NG

Views: 1432

#63912

PLCC Solder fillet NG | 8 March, 2011

I have an issue with PLCC Insufficient Heel solder joint fillet.The aperture dimension is : 30 x 100 mils on PCB & on stencil also(1:1 per gerber).Rohs Process. My stencil thickness is 5mils due to presence of Tssop & QFP package & i cannot increase thickness to improve solder volume. Please throw some light& advance thx for all your sincere postings.

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#63913

PLCC Solder fillet NG | 8 March, 2011

i don't see why it was insufficient. if you want more paste, i would increase by 10-15% aperture,and maybe double prints for printer.

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#63924

PLCC Solder fillet NG | 9 March, 2011

We agree with the previous poster. Open-up your aperture to increase the amount of solder paste. If you don't have a heel fillet, go home.

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