US Patent No. 9,136,821

SURFACE MOUNT DEVICE-TYPE LOW-PROFILE OSCILLATOR


Patent No. 9,136,821
Issue Date September 15, 2015
Title Surface Mount Device-type Low-profile Oscillator
Inventorship Fumio Asamura, Saitama (JP)
Assignee NIHON DEMPA KOGYO CO., LTD., Tokyo (JP)

Claim of US Patent No. 9,136,821

1. A surface mount device-type low-profile oscillator in which a crystal unit section and an IC chip unit are integrally installed,
wherein
the crystal unit section hermetically seals a crystal unit therein, and includes, on an external surface, an insulation container
provided with an external terminal for acquiring an oscillation output of the crystal unit,

the IC chip unit is a bare chip, and includes, on a surface of the IC chip unit facing to the external terminal provided in
the crystal unit section, an integrated circuit portion that forms an oscillator circuit together with the crystal unit and
a crystal unit connection terminal connected to the external terminal of the crystal unit section; and

the external terminal between a formation surface of the external terminal provided in the insulation container of the crystal
unit section and the surface of the IC chip unit facing to the external terminal and a part of the surface of the IC chip
unit facing to the crystal unit connection terminal are connected through the crystal unit connection terminal, and

an area formed between the external terminal and a part of the surface of the IC chip unit not facing to the crystal unit
connection terminal is directly adhered with an adhesive.