Randall Nortman wrote: > I've got some LQFP chips that I've been storing, with the bag opened, > for a bit longer than I really should have. The indicators on the > humidity cards have started to turn pink, so I'm worried that they > will have absorbed too much humidity and if I try to reflow them now, > they'll "popcorn" (i.e., trapped moisture turns to steam and > evaporates, cracking the package and/or die). Anybody have any > suggestions on the best way to do this using common household > equipment? I guess I just stick them in an oven at lowish temperature > for a while, but what temperature and for how long? I checked the > datasheets for the chips (Atmel AT91SAM7X256 and Micrel KS8721CL) and > didn't see any useful information. >
You could try putting them in a sealed container with some bags of silica gel for a few days. Peter -- Quake II build tools: https://adidas.servegame.org/projects/buildutils/