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USB Li-ion battery charger

Step 3Soldering the integrated circuit

Soldering the integrated circuit
The area around the ic is tinned and the solder pads joined to the board with bits of wire.

I find it helpful to flatten the wire with pliers before soldering, so that it stays in position without any tendency to roll about. Some of the leads go to the same node and these are conveniently placed together.

After the leads have all been soldered, the space in between the leads are cut out to form islands and the other components are soldered to these islands of copper.
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1 comment
Aug 20, 2010. 8:26 PMters says:
nice tip! flatten the bare connecting wires.. never thought of it this way.. =) I will try this method on my next upcoming TQFN proto projects... Thanks!

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Author:neelandan
Employed as an Engineer in Electronics. Interested in building small circuits around tiny chips (the electronic kind).