Samsung Electro-mechanics Co., Ltd.

Sang Yeob Cha

Katsushi Yasuda

Jong Pil Lee

Yong Sung Kim

Young Key Kim

Jin Man Han

Soon Bum Lee

Won Sup Cho

A piezoelectric device package includes a board having a lower surface and an upper surface, a plurality of terminals disposed on the lower surface, a piezoelectric device disposed on the upper surface, a thermistor layer and a resistance layer disposed on the lower surface, and a cap lead covering an upper portion of the board.

Piezoelectric device package

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

An FBT, its inductance adjusting method and a device capable of adjusting a gap between the top and bottom cores features a stable inductance value required for the FBT even without requiring a separate spacer between the top and bottom ferrite cores. An adhesive agent is applied to top end of a coupling portion of the bottom core provided within the low voltage bobbin, and a predetermined inductance value between the bottom core and the top core is obtained by a hardening of the adhesive agent therebetween without having a separate gap maintaining arrangement. The inductance value within the FBT can be precisely adjusted even without requiring a separate spacer at the gap portion between the top and bottom ferrite cores of FBT. In addition, it is not necessary to use a U-clip for fixing the top and bottom ferrite cores.

Growing community of inventors

Suwon-si, South Korea

Sang Yeob Cha