Samsung Electro-mechanics Co., Ltd.

Katsushi Yasuda

Jong Pil Lee

Jang Ho Park

Sang Yeob Cha

Jong Beom Jeon

Soon Bum Lee

Won Sup Cho

A crystal device includes a package including a cavity formed therein, a thermistor disposed on a bottom surface of the cavity and integrated with the package, a crystal blank spaced apart from the thermistor in the cavity, and a lead coupled to the package so as to cover the cavity.

Crystal device

A piezoelectric device package may include: a case having a plurality of terminals formed on a lower surface thereof; a piezoelectric device formed in the case; a temperature measuring device formed on the lower surface of the case and having a thin film form; and a cover member enclosing an upper portion of the case.

Piezoelectric device package and method of fabricating the same

There are provided an electrode structure of a piezoelectric resonator and a piezoelectric resonator including the same. The piezoelectric resonator includes: a piezoelectric plate vibrated by an electrical signal; and first and second electrodes having first to fourth layers stacked on both surfaces thereof, wherein the first and third layers are made of at least one selected from the group consisting of Ti, Ni, Cr, an alloy including Ti and an alloy including Cr and the second and fourth layers are made of Ag or an alloy including Ag.

Piezoelectric resonator and electrode structure thereof

Provided are a piezoelectric vibrator and an electrode structure of the piezoelectric vibrator. The piezoelectric vibrator includes a piezoelectric material vibrating according to an electric signal, first and second electrode structures formed on the upper surface and the undersurface of the piezoelectric material, and including first to fourth layers sequentially stacked thereon, respectively. The first and third layers are formed of an alloy including Cr. The second and fourth layers are formed of Ag or an alloy including Ag.

Growing community of inventors

Suwon-si, South Korea

Katsushi Yasuda