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Electronic component

a technology of electronic components and components, applied in the direction of electrical equipment, impedence networks, semiconductor/solid-state device details, etc., can solve the problems of instable shape of brazing materials and instable shape of molten resins

Pending Publication Date: 2019-11-07
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention offers an electronic component and a way to make it that ensures the shape of a joining member remains stable.

Problems solved by technology

However, with the configuration that a brazing material is provided on the metallized layer of the ceramic board, there occurs a problem that the shape of the brazing material becomes instable under the influence of a change in shape, such as the shape of warpage of the ceramic board.
On the other hand, with the configuration that the metal cover is joined with the ceramic board with the molten resin interposed therebetween, there has been a problem that the shape of the molten resin becomes instable under the influence of a change in the shape of the ceramic board and the shape of the metal cover or the shape of the molten resin becomes instable depending on a molten condition.

Method used

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Experimental program
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first embodiment

[0045]An example of a quartz crystal resonator unit that is manufactured in accordance with an exemplary embodiment of the present invention will be described with reference to FIG. 1 and FIG. 2. FIG. 1 is an exploded perspective view that shows an example of the quartz crystal resonator unit corresponding to an electronic component according to the first embodiment of the present invention. FIG. 2 is a cross-sectional view, taken along the line II-II, of the quartz crystal resonator unit shown in FIG. 1.

[0046]As shown in FIG. 1, the quartz crystal resonator unit 1 includes a quartz crystal resonator 10, a second board 20, and a first board 30. The first board 30 and the second board 20 make up a holder or frame for accommodating the quartz crystal resonator 10. In the exemplary embodiment, the second board 20 has a recessed shape, specifically, a box shape with an opening portion, and the first board 30 has a plate shape. It is noted that the shapes of the second board 20 and first...

first modification

[0102]The configuration of a quartz crystal resonator unit 301 according to the first modification of the first embodiment will be described with reference to FIG. 16. FIG. 16 is a cross-sectional view that schematically shows the configuration of the quartz crystal resonator unit according to the first modification. The first modification differs from the configuration example shown in FIG. 2 in that a second board 320 has a plate shape and a first board 330 has a recessed shape. It should be appreciated that the first board 330 and the second board 320 are joined with each other with a base member 337 and a joining member 340 interposed therebetween and form an internal space 326 that accommodates a quartz crystal resonator 310 in a similar configuration as the example shown in FIG. 2.

[0103]In the first modification, a substrate 331 has a step 339 on a first main surface 332a. When the substrate 331 is viewed in the plan view in the direction normal to the first main surface 332a,...

second modification

[0104]The configuration of a quartz crystal resonator 910 according to the second modification of the present embodiment will be described with reference to FIG. 17. FIG. 17 is a perspective view that schematically shows the configuration of the quartz crystal resonator according to the second modification.

[0105]The quartz crystal resonator 910 in the second modification differs from the quartz crystal resonator 10 shown in FIG. 1 in that a quartz crystal blank 911 has a tuning fork shape. That is, a quartz crystal resonator unit according to the second modification is a tuning fork-type quartz crystal resonator unit. The quartz crystal blank 911 specifically has two vibration arm portions 919a, 919b disposed parallel to each other. The vibration arm portions 919a, 919b extend in the X-axis direction, align in the Z′-axis direction, and are coupled to each other by a proximal portion 919c on an end surface 912c side. In other words, the plurality of vibration arm portions 919a, 919b...

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Abstract

An electronic component that includes a first board having a bow-shaped first main surface and a joining member disposed on the first main surface of the first board and having a top edge configured to be joined with a second board, wherein the top edge of the joining member is disposed in a plane.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]The present application is a continuation of U.S. patent application Ser. No. 16 / 513,865, filed Jul. 17, 2019, which is a continuation of PCT / JP2018 / 001689 filed Jan. 19, 2018, which claims priority to Japanese Patent Application No. 2017-007734, filed Jan. 19, 2017, the entire contents of each of which are incorporated herein by reference.TECHNICAL FIELD[0002]The present invention relates to an electronic component.BACKGROUND[0003]Quartz crystal resonator units made from, for example, artificial quartz are widely used as signal sources of reference signals that are used in oscillator devices, band-pass filters, and other devices. Patent Document 1 (identified below) describes a manufacturing method for a quartz crystal resonator unit. In the manufacturing method, a frame-shaped low-temperature metal brazing material (Au / Sn alloy) is put on a metallized layer of a ceramic board and melted to cover the metallized layer to form a joining la...

Claims

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Application Information

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IPC IPC(8): H03H9/215H03H3/02
CPCH03H9/215H03H3/02H03H2003/026H01L23/02H03H9/1021H03H9/177H10N30/073
Inventor KAWAMORI, SHINSUKEGAMO, MASAO
Owner MURATA MFG CO LTD