The 0-th shear horizontal (SH0) mode plate wave has an electromechanical coupling factor k2 larger than 50% in a (0°, 120°, 0°) LiNbO3 (LN) plate thinner than 0.1λ, where λ is a pitch of an intergidital transducer (IDT). In the previous study, ultra-wide-band ladder filters composed of cavity type resonators recorded 6 dB bandwidth from 41% to 51% in a digital TV band. However, the structure is fragile, because the LN plate as thin as 0.5-0.6 μm is self-suspended. Inspired by solidly mounted (SM) type film bulk acoustic resonators (FBAR), the authors have come up with SM type SH wave devices. The SM type SH wave resonator has an ultra-wide bandwidth of 20% similar to that of SH0 plate wave resonators. In this study, the SM type ladder filter with an insertion loss of 0.5 dB was developed.