Patent ID: 11881838
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC B  H | IPC B  H

Claim 9:
10. A method of manufacturing a resonance device, the method comprising:
forming a first layer including a first metal layer of a first metal containing aluminum as a main component thereof around a vibration portion of a resonator in a first substrate;
forming a second layer including a second metal layer of a second metal of germanium or silicon and a third metal layer of a third metal of titanium or nickel that extend continuously from a side of the second substrate, at a position facing the first metal layer in the first substrate when the first substrate and the second substrate face each other; and
forming a bonding portion including a eutectic layer containing a eutectic alloy of the first metal, the second metal, and the third metal as a main component thereof so as to bond the first substrate and the second substrate to seal a vibration space of the resonator.