Acoustic wave device having a frequency control film

An acoustic wave device comprising a main resonator and a sub resonator each having a substrate, a lower electrode provided on the substrate, a piezoelectric film provided on the lower electrode, and an upper electrode provided on an upper side of the piezoelectric film,

• a frequency control film being provided on an upper side of a resonance area in which the upper electrode and the lower electrode face each other in each of the main resonator and the sub resonator,
• the frequency control film having multiple hole patterns, and
• the hole patterns being arranged with a common pitch and with different opening areas in the main resonator and the sub resonator,
• wherein the pitch is equal to or longer than a wavelength λ excited by the piezoelectric film.