Questions tagged [reflow]
Reflow soldering is a type of soldering where solder paste is applied to the pads, after which the components are placed on top and then it is baked in an oven.
134 questions
5 votes
2 answers
763 views
Baking a Raspberry Pi Pico W before reflow soldering?
JLCPCB is trying to tell me that the RPi Pico W needs to be baked to reduce moisture before putting it through reflow soldering. They're saying that "It is moisture-sensitive according to the ...
- 103
1 vote
1 answer
101 views
W5500 Chip Intermittent Act/CRS light on custom PCB
I have built a custom Arduino-like board with the W5500 and atmega328pb. I am reaching out to see if anyone has had a similar experience when working with the W5500 chip: The current board I am ...
- 13
0 votes
2 answers
152 views
What is the best solution to keeping heavier components on a double-sided PCB while going through second pass reflow?
I am trying to do some research as I have many customers who face this issue with their parts falling off the board during the second pass. What has worked for you? Many applications are different ...
- 1
0 votes
1 answer
122 views
Soldering with SAC on a glass PCB
I’m having trouble getting the solder paste to wet my glass PCBs. I am using SAC305 solder. Funny that it works fine on FR-4 but with glass it just balls up. Maybe it is because glass conducts heat ...
2 votes
1 answer
131 views
Reflow oven control technique
I am developing a DIY reflow oven using a 10L common electric oven with quartz heating elements. Below is a graph that represents the oven's step response (open loop response): In blue: oven's step ...
- 188
0 votes
2 answers
623 views
PCB warping during Reflow
I have design a PCB size about 100x60mm it reflow very nice on the hot plate but If I convert my PCB to a panelization 2x3 quantities size became 200x180, the edges began to lift up due to expansion ...
- 1,255
1 vote
2 answers
329 views
Solder SMT/SMD with a rework preheater?
Is it possible to solder SMT/SMD chips using a rework preheater (e.g. a Model 5040-XR3)? What "gotchas" go with this method of SMT/SMD soldering? I know it's best to use a real reflow oven, ...
- 111
0 votes
0 answers
61 views
What glue to use for edge bonds on a laptop NB
I'm trying to reball the northbrige of my HP Pavilion DV4-1212LA because it stopped working from one day to the other. I've checked, and all of the voltages are present. The laptop itself posts the ...
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