Resonant Inc.
SPLIT LADDER ACOUSTIC WAVE FILTERS

Abstract:

Filter devices and methods of fabricating filter devices. A filter device includes a first chip and a second chip. The first chip has a first material stack and contains one or more series resonators of a ladder filter circuit. The second chip has a second material stack and contains one or more shunt resonators of the ladder filter circuit. The first material stack and the second material stack are different.