Toaster Oven Reflow Soldering (BGA)

Step 3 Make your PCBs.

In this exampe I'm working with an ADXRS300 which is a 1 axis Gyrometer made by Analog Devices. It comes in a ball grid array package with the balls already attached to the bottom of the component. The PCB needs to be designed with pads for each of the balls, along with a silk screened outline to make it easy to align the component (which is critical when you can't actually see the pads). Also, duh, make sure you mark the location of Pin 1.