All Questions
4
questions
1
vote
2
answers
33k
views
Soldering iron tip turns black after first use, and won't melt solder [duplicate]
I am a beginner in the field of soldering. Two weeks ago a bought a brand new soldering iron for around $15. The iron had a shiny tip, but after I plugged it in it turned black pretty quickly. ...
12
votes
6
answers
56k
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Solder Paste vs Solder Flux
I bought a "Solder Paste". It is in quote because I'm not really sure if it's a Solder Paste itself.
I researched about what Solder Paste is and, by definition, is defined as a mixture of small ...
- 301
0
votes
1
answer
278
views
QFN32 exposed pad stencil
I made a pcb with a QFN32 with exposed pad but I feel like I've made a mistake on the stencil, in the exposed pad area.
I managed to solder it and the chip (CC1310) is programmed successfully but I'm ...
- 3
8
votes
1
answer
2k
views
Solder paste stencil application
I am trying to do reflow soldering with a stencil for the first time. I have done some reflow soldering before, but every time I manually applied the paste using a small syringe + needle. These ...
- 135