An integrated package provides contactless communication through a coupling mechanism embedded in the package. In a mass analysis apparatus for performing mass analysis by introducing ions produced in an ion source into a mass spectrometer, the mass analysis apparatus comprises a plurality of ion sources; and a deflecting means for deflecting ions from at least one ion source among the plurality of ion sources so that the ions travel toward the mass spectrometer by producing an electric field. Such a heat sink can dissipate heat from multiple electronic components with the respective fin type that is most cost effective for each respective component.