Murata Manufacturing Co., Ltd.

Kazuhiro Mimura

Hiroaki Kaida

Yoshifumi Saito

Yuichiro Nagamine

Manabu Ibayashi

Katsuma Moroishi

Takuya Kono

Koki Sai

Tadashi Yoda

A quartz crystal resonator that includes a substrate including a vibration portion, a frame portion that surrounds the vibration portion, and first to fourth coupling portions that couple the vibration portion and the frame portion to each other; and first and second excitation electrodes. An intersecting point of diagonal lines of a quadrangle formed by first to fourth connection portions is located on the positive side of the z axis relative to the x axis.

Quartz crystal resonator and quartz crystal resonator unit

A method capable of manufacturing a quartz vibrator by disposing a metallic bonding material on one main surface of a ceramic plate having a quartz vibrating element mounted thereon. Thereafter, the bonding of a cap having a recess to the ceramic plate by disposing the cap on the one main surface of the ceramic plate so that an open side of the recess faces the ceramic plate, melting the bonding material, and then allowing the bonding material to set, is carried out.

Quartz vibrator manufacturing method and quartz vibrator

A quartz vibrator that includes a substrate, a quartz vibrating element, and a dome-shaped cap. The quartz vibrating element is mounted on the substrate. The cap is bonded to the substrate. The cap defines and forms a sealed space that seals the quartz vibrating element along with the substrate. The cap has a side wall portion, a ceiling portion, and a connecting portion. The side wall portion encloses the quartz vibrating element. The ceiling portion is positioned above the quartz vibrating element. The connecting portion connects the side wall portion and the ceiling portion. The connecting portion is thinner than the side wall portion and the ceiling portion.

Quartz vibrator having a dome-shaped cap

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Nagaokakyo, Japan

Kazuhiro Mimura