All Questions
5
questions
3
votes
1
answer
447
views
Interaction between PCB surface finish (ENIG vs HASL), wave soldering, and manual final assembly
I am developing a PCBA that is (for me, an amateur) fairly complicated: 4 layers, double-sided, mixed SMT/THT assembly. It is a fairly dense layout with ~150 total components including all the ...
- 411
4
votes
3
answers
1k
views
Is it OK to solder to large copper pour area
Is it a problem to integrate an SMD pad into a large copper pour area? In this case, the packages are 1206. I am wondering if I need to be concerned about thermal issues and interfering with standard ...
- 107
0
votes
2
answers
317
views
What happens if I don't tin my DIY self-etched PCB traces?
Once I etch my PCB from copper-clad FR4, do I need to tin the board with solder?
If I do not tin the traces, what are the possible issues besides greening over time?
- 2,170
1
vote
1
answer
2k
views
aluminum PCB soldering techniques for prototypes
I am wondering if i ordered some aluminum pcbs that contain D2pak transistors and i want to solder a couple of them for testing is it possible using basic equipment or does it need an Reflow soldering ...
- 3,239
9
votes
3
answers
5k
views
SMD Crystal solder(?) problem and any recommended test procedure
I use a 32.768 kHz SMD crystal (datasheet) for a MCU. Here is the layout part of the crystal.
Here is a view from an actual PCB
I mounted the components by hand-soldering, and produced about 30 ...
- 3,305