Surface-mount type crystal oscillator
AssigneeNihon Dempa Kogyo Co., Ltd.
InventorKouichi MORIYA
Life of this patent
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Abstract
A surface-mount type crystal oscillator has: a container body having a bottom wall and a frame wall having an opening and provided on one principal surface of the bottom wall; a quartz crystal blank hermetically encapsulated in a recess of the container body, which is formed by the opening of the frame wall; and an IC chip on which an oscillating circuit using the crystal blank is integrated. A region which is a region on the one principal surface of the bottom wall and other than formation regions of the frame wall and the recess is made a flat part, and the IC chip is fixed to the one principal surface of the bottom wall by flip-chip bonding, in the flat part. A crystal inspection terminal electrically connected to the crystal blank is provided on a surface of the flat part.
Claims7
A surface-mount type crystal oscillator, comprising:
- a container body having a bottom wall, and a frame wall having an opening and provided on one principal surface of said bottom wall;
- a crystal blank hermetically encapsulated in a recess of said container body, which is formed by said opening of said frame wall;
- and
- an IC chip on which an oscillating circuit using said crystal blank is integrated,
- wherein a region which is a region on the one principal surface of said bottom wall and other than formation regions of said frame wall and said recess is made a flat part, and said IC chip is fixed to the one principal surface of said bottom wall by flip-chip bonding, in said flat part, and
- a crystal inspection terminal which is electrically connected to said crystal blank is provided on a surface of said flat part.
Dependencies are inferred from the claim text.