Hi Muhammad H., I noticed your profile and would like to offer you my project. We can discuss any details over chat. Basically, I have a schematic of MEMS sensors feeding an analog processing chip, to an ADC to a PIC micro. we built 3 for prototype test and there is a short that we simply cannot find. At this point, all I am looking for is help finding the short before building more. Could be a manufacturing problem, just not sure.