Piezoelectric resonator unit and method of manufacturing the same

A piezoelectric resonator unit comprising:

• a piezoelectric resonator that includes a piezoelectric element, a pair of excitation electrodes that are respectively disposed on a first main surface and a second main surface of the piezoelectric element so as to face each other with the piezoelectric element therebetween, and a pair of connection electrodes that are respectively electrically connected to the pair of excitation electrodes;
• a base member that has a third main surface;
• a pair of electrode pads disposed on the third main surface;
• an electroconductive holding member that includes electroconductive particles, that electrically connects the pair of electrode pads respectively to the pair of connection electrodes, and that excitably holds the piezoelectric resonator on the third main surface of the base member;
• and
• an electroconductive material on at least a part of a surface of the electroconductive holding member, the part of the surface excluding an interface between the electroconductive holding member and the piezoelectric resonator,
• wherein the electroconductive material is formed from a material that is the same as a material of an outermost layer of each of the pair of electrode pads.