Patent ID: 7859363

Claim:
A component comprising: a first filter configured to work with acoustic waves, the first filter comprising: a first sub-filter on a first chip; and a second sub-filter on a second chip separate from the first chip, the first sub-filter being a different type of filter, having a different layer structure, or having a different layer thicknesses for at least one layer than the second sub-filter; wherein a first one of one of the first and second sub-filters comprises one or more SAW resonators and is temperature compensated by a compensation layer applied to the associated first one of the first or second chips, the compensation layer being configured such that an acoustic surface wave propagates at least partially in the compensation layer and the compensation layer has lower temperature sensitivity of frequency than the material forming the first or second chip; wherein a second one of the first and second chips is not temperature compensated and does not include a temperature compensation layer; and wherein the first sub-filter comprises one-port SAW resonators.