A little different than BGA I think -- www.flipchip.com They refer to it as wafer bumping. I'm surprised to hear some positives on hand building experience though. Thats pretty wild. > Flipchip? You talking Ball Grid Array (BGA's) > > Dal Wheeler wrote: > > > Along these lines, has anyone here messed with Flipchip type mounting (die > > solder bumps)? Is it even possible at the hand-build level? Convection > > oven trick? -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.