All Questions
5
questions
3
votes
4
answers
2k
views
Solder bridging when reflowing QFP
Today I attempted to reflow solder a board using a solder paste mask and a hot air station but for a QFP chip, I got a of solder bridging. This has generally been my experience with trying to solder ...
- 459
2
votes
1
answer
623
views
Hand soldering QFP component
I recently came across this video on YouTube, in which the guy is soldering a .5 mm QFP component.
Hand soldering a .5 mm QFP Chip
As I haven't done a lot of soldering in my life (and never used ...
- 79
1
vote
2
answers
1k
views
Easiest way to solder connections to all the legs on a surface-mount chip?
Recently, I went through the process of soldering wires onto the legs of a TQFP chip (~0.8mm pitch) which has already been mounted on a PCB. This is a project where I am doing some modifications to ...
- 131
5
votes
4
answers
2k
views
how to manually solder exposed-pad QFP package (Altera 144 pins)
I need to manually solder an exposed-pad QFP Altera FPGA. This is crucial, since the pad is used for electrical purpose (not for thermal purpose)
I have tried the following but failed. I just put ...
- 285
5
votes
2
answers
2k
views
Pad dimensions and land patterns for QFPs
I'm putting together a footprint for a 100-pin, 14x14mm TQFP, and I'm finding conflicting designs. The pitch and width of the pads are all basically the same, but the length and centering of the pads ...
- 20.1k