Wow, the cold/warm soaks sound like they make for a very slow iterative process when it doesn't work on the first try. Do you have several systems soaked at the same time? So if the first you test fails, you can adjust something and test on a second setup while the first is re-soaked?
I also thought much of the difference in length on the PCB is compensated by with those wiggly traces (so all have equal-ish length), but you still need to compensate for it? Or is it just to gain a larger error margin?
Wow, the cold/warm soaks sound like they make for a very slow iterative process when it doesn't work on the first try. Do you have several systems soaked at the same time? So if the first you test fails, you can adjust something and test on a second setup while the first is re-soaked?
I also thought much of the difference in length on the PCB is compensated by with those wiggly traces (so all have equal-ish length), but you still need to compensate for it? Or is it just to gain a larger error margin?