0402 LED TILT

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Can anybody suggest how to reduce 0402 LED tilting as I am u... - Nov 24, 2017 by jinesh

Some things to look into are the component finish, material ... - Nov 28, 2017 by Russfrom NH

Without the details I will tell you that you have too much p... - Nov 28, 2017 by Evtimov

jinesh

#79373

0402 LED TILT | 24 November, 2017

Can anybody suggest how to reduce 0402 LED tilting as I am using Convectional Reflow oven with 10 Heating zones and controlling the solder paste with 4.2 mills paste height

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Russfrom NH

#79388

0402 LED TILT | 28 November, 2017

Some things to look into are the component finish, material and composition of the solder, design of the smt stencil, reflow profile or process atmosphere (N2 or air)also contribute to the solder result.

The influence of the PCB itself should be considered things like PCB plating material, solder pad design, surface quality and finish of the solder pad.

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Evtimov

#79393

0402 LED TILT | 28 November, 2017

Without the details I will tell you that you have too much paste. PCB Pad is probably way bigger than the contact lead surface of the part, you overprint, and in the oven this solder have nowhere to go and tilts your part. Check datasheet.Cutting smaller apertures should fix big part of it.

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