Tagged Questions
3
votes
5answers
327 views
Why not reflow a PCB before placing parts?
A standard reflow method for low-volume assembly is:
Method A
Apply solder paste (using stencil or syringe)
Hand-place parts (using vacuum pickup pen or tweezers)
Oven reflow
-
But what happens ...
3
votes
3answers
170 views
Do any SMT components require hand soldering due to heat limitations?
It has been claimed on another board that some SMT components cannot be used in an automated production line (i.e. reflow or wave soldering) because they cannot withstand the heat/temperature. Hand ...
13
votes
4answers
483 views
Why does solder not conduct sometimes?
I was reflowing and a 2K 603 resistor partially tombstoned. There was solder connecting the lead to the pad, yet my DMM showed an open. When I heated both ends and the resistor came down and contacted ...
6
votes
2answers
397 views
DIY Reflow soldering
This is related to this question.
I'm trying to get started with a DIY reflow soldering station intended for my personal use. I'm planning on starting small and improving the system as time goes on ...
4
votes
2answers
815 views
Why and when to use reflow soldering?
I was looking at an instructable and they suggested using "reflow soldering" for a certain section. "Reflow" wasn't a concept i was familiar with, so i did some googling...
I got a basic description ...
5
votes
1answer
300 views
Will “hot plate” reflow soldering work without a solder resist coating?
With a successful through-hole design under my belt I am now ready to try fabricating a board that uses surface-mount components. I have been reading about this, and have gathered that the DIY crowd ...
7
votes
2answers
510 views
Soldering heatsink pad on bottom of IC
I am attempting to make a board for the tlc5951 24-channel led driver to drive an 8x8 rgb led array. I have made what I think is a good eagle library for the sop-38 package, but I am not sure what to ...
4
votes
2answers
1k views
Any drawbacks to “low temp” lead-free solder paste?
I am about to try my first "reflow skillet" soldering job, and as I look at the available types of solder paste I see there are lead-free pastes with much lower melting temperatures than others.
For ...
10
votes
4answers
654 views
SMT solder reflow temperature profile
I have read many website and forums about DIY reflow ovens for SMT soldering. I have also seen many solder profiles as specified by the solder manufacturers, component manufacturers, and other ...
3
votes
1answer
293 views
Components on both sides of the board with reflow
Is it possible to place components on both sides of the board if I'm doing DIY toaster-oven style reflow soldering? I would think that doing the reflow twice (for the other side) might overheat the ...
4
votes
5answers
470 views
Reflow at home or solder manually?
I'm considering doing DIY SMT Reflow for production of my Super OSD project.
An overview of the component count:
Resistors: ~50 x 0603; precision 0.1% resistors as well as 1% and 5% components
...
6
votes
5answers
529 views
SMD solder now or later?
I'm soldering up some boards with smd parts, using a hot plate to reflow, and I'm (inevitably) realizing that I got some of the wrong parts. Now, is it better to leave the boards with smd components ...
8
votes
3answers
2k views
DIY BGA soldering feasability
BGA seems to be somewhat of a showstopper for the diy community, especially with the newer more powerful parts being almost exclusively bga. I know it can be done with the skillet/toaster oven ...
