Reflow Soldering Step by Step (Large Images)

01 About to start solder paste application

02 Solder paste application underway

03 Fine pitched devices get a thin strip of solder paste

04 Solder paste all done ready for SMDs

05 Placing the last of the SMDs

06 Control Board SMDs all in position

07 Deploy the reflow soldering jig and hotplate

08 Solder paste has gone grey and liquid

09 Partially reflowed, some pads shiny, some still grey

10 Everything reflowed lift jig gently prop up on a box

11 Hotplate moved out of the way to let things cool

12 Reflowing done, minor touch up of bridging x2 done