A method for manufacturing a semiconductor apparatus includes: on a base substrate, forming an isolation trench layer, a first dielectric layer, a first metal connecting layer, a piezoelectric film, and an upper electrode layer; forming an acoustic resonance film by patternizing the piezoelectric film, the upper electrode layer, and the first metal connecting layer; above the base substrate, forming a second dielectric layer and a third dielectric layer; forming a first cavity through the third and second dielectric layers, and the protection layer; removing a part of the base substrate to expose the isolation trench layer; forming a fourth dielectric layer under the isolation trench layer; and forming a second cavity through the fourth dielectric layer, the isolation trench layer, and the first dielectric layer, plan views of the first and second cavities forming an overlapped region having a polygon shape without parallel sides.