I am writing a manufacturing specification for our contract manufacturing.
So far, the smallest component on our PCB is a 0402 resistor, however, I would like to specify a process that will be capable of handling our future requirements.
A design requirement we have is the reduction of the PCB layout size. As such it might be better to go to 0201 resistors in the revision.
Does anyone know the differences between 0402 and 0201 footprint resistors? Is it purely power and price or are there other things worth considering?
edit: interesting frequency response relation documented here: http://www.vishay.com/docs/60107/freqresp.pdf "reduction in parasitic impedance for smaller cases sizes"