Patent ID: 7098449

Claim:
Spectrometer system, comprising a chip assembly formed having at least a pair of substrates separated by a spacer, forming an enclosed flow path, said flow path accommodating a flow of ions representative of a chemical sample, said assembly having a plurality of electrical contacts, wherein a first said substrate has a filter electrode in communication with a first said contact and wherein a second said substrate has a filter electrode in communication with a second said contact, for forming a FAIMS ion filter enclosed in said flow path, said substrates and spacer defining a multiple layer package wherein said filter electrodes are separated by an analytical gap in said flow path, a control source for controlling said filter electrodes, one said substrate and said spacer forming a receiver assembly having electrical contacts, wherein said filter electrodes are in communication with said control source through a combination of said contacts, one said substrate mounting into said receiver assembly for forming said flow path, and said flow of ions flowing in said gap and being subjected to a compensated high-low varying asymmetric filter field between said filter electrodes for filtering ion species in said flow of ions for filtering the chemical sample.