Reflow oven USB jack test with new heat profile
Cranked the solder temperature down to 210 and tried some boards with bigger parts. Still looking good, though the paste dispenser will help a lot as the tweezers aren’t the right tool. The lower solder temperature still scorches the boards making the tidy white silk a sort of blond roux color. That is a lingering concern and something we need to work out.
This entry was posted in tools and tagged reflow oven.
Comments
Have you try with a better quality PCB (like >TG150)? Silkscreen turning yellow/brownish could also due to the imperfect drying (baking?) process during the PCB manufacturing.
Where do I get that break out board shown here?
Those are the xQFP protoboards available at Seeed. Here’s the info page:
http://dangerousprototypes.com/docs/Dangerous_Proto_boards#xQFP_protoboard
you might wanna show the profile here :)
how long do you keep the board in the max temp?
does this oven have a TC probe you can move around (and position on your pcb) or it only has some TC inside in fixed position? Is there a fan in the oven (can you hear it mixing air while baking) or is only static?