I have contacts that are so close together I'm either bridging them, or melting the neighboring one. What am I missing?
Electronic – Solder very close together contacts
soldering
soldering
I have contacts that are so close together I'm either bridging them, or melting the neighboring one. What am I missing?
Best Answer
Flux. You're missing flux, and lots of experience. I regularly solder with a tip that easily covers 10 or more pins at a time, but by carefully controlling how much solder is on the tip and using lots of flux I can get perfect solder joints. When soldering a TQFP or TSSOP package here's what I do:
I should mention that my soldering iron has a straight, but angled tip. It's often called a chisel tip. This tip makes it easy to do everything from 1206's, 0402's, TQFP's, TSSOP's, etc. It just doesn't work for BGA's, QFN's, and some of the weirder things.