An interposer chip in accordance includes an insulating layer, conductive patterns and a dummy pattern. The method includes applying acoustic waves from an acoustic wave source to a gas to be filtered as it flows into the filter; thereby producing steady secondary acoustic streaming around dust particles already deposited on the filter, thus reducing pressure drop across the filter initially caused by clogging. The present invention is convenient to use and has an elegant look. During their distribution, the marked instantiations are verified for authenticity and for routing. The system may also be used in conjunction with a pipeline, such as a subsea pipeline, to determine the flow rates of fluids flowing therethrough.