I'm trying to design a motherboard test board based on a 62 mil FR4 PCB. The device to be tested is a BGA-type PCB which is 40 mil FR4 and which has BGA balls on a non-standard pitch of 2 mm.
Since the pitch of 2 mm is non-standard I cannot seem to find a socket that will accommodate test pins (such as pogo pins) on this pitch. Therefore, I was thinking that short pogo pins could be soldered down on one side to the 62 mil motherboard PCB (probably through carefully sized via holes that match the module 2 mm pitch) and then the module itself could be seated on top of the pogo pins.
Any ideas whether this could work or whether there are any other methods?
Thank you!