Hand soldering a .5mm pitch QFN component with SchmartBoard EZ.
As you know, QFN components have most to the pod surface on the bottom and a little bit on the side. Hand soldering this without a SchmartBoard EZ is probably impossible.
The SchmartBoard EZ for QFN has a queves that the whole component drops unto. These lines of the pods on the component, with our SchmartBoard EZ grooves. The board also has a duct to designate where pod one should go.
The first step after placing the component down is to just tape it down.
After taping down the component, you add some solder flux, and then you put the tip of your iron in each groove and push forward until you touch the side of the chip.
The iron is set on 800 degrees Fahrenheit. The tip must be smaller than the pitch of the component.
The solder is already in each groove. All you are doing is melting it and pushing it forward until it touches the pod. You cannot create a short.
After doing side one, remove the tape and does the same beside two.
As easy as that, we have hand solder two sides of the component.
Now, after this of course, you should hand solder the other two sides. But what we are going to do to finish this off is to pretend that there is a heat sink on the middle that needs to be taking care of. And what we have done is we put a pass through via here. That allows you in cases where there is a heat sink in the middle of the component to just add a little bit of e external solder.
And, there you go.
So, this is hand soldering a .5mm QFN component using SchmartBoard EZ.
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