Boards went off to Fab for this and the stencils have been ordered. Paste is in the fridge at my house (yes, keep it in the fridge...if it gets warm it gets too gooey). The "PCB" is really a panel that is V-Scored to break off the various PCBs. There are 6 boards in this set. See the desc for details on the boards. I love using BGA-PCBs for board-to-board connections without connectors. They are reliable and easy to solder if you keep the pitch large enough (>= 0.8mm). These are 1mm and easy to reball and reflow.