公开(公告)号：US11152910B2

公开(公告)日：2021-10-19

申请号：US16338695

申请日：2017-11-14

Applicant: Daishinku Corporation

Inventor： Takuya Kojo

IPC: H03H9/02 ,  H03H9/05 ,  H03H9/10 ,  H03H9/19

Abstract: A crystal oscillator includes: a crystal resonator plate having a first excitation electrode and a second excitation electrode. A first sealing member covers the first excitation electrode of the crystal resonator plate. A second sealing member covers the second excitation electrode of the crystal resonator plate. An internal space is formed by bonding the first sealing member to the crystal resonator plate and the second sealing member to the crystal resonator plate, and seals a vibrating part of the crystal resonator plate. First and second shield electrodes are connected to a fixed potential (e.g. GND potential) in the internal space.

公开(公告)号：US10600953B2

公开(公告)日：2020-03-24

申请号：US15765498

申请日：2016-10-31

Applicant: Daishinku Corporation

Inventor： Takuya Kojo

IPC: H01L41/047 ,  H03H9/05 ,  H01L41/18 ,  H01L23/02 ,  H01L23/04 ,  H03H9/13 ,  H03H9/10 ,  H01L41/053 ,  H03B5/32

Abstract: A crystal resonator (101) includes: a crystal resonator plate (2); a first sealing member (3); a second sealing member (4); and an internal space (13) hermetically sealing a vibrating part (22) of the crystal resonator plate (2). The crystal resonator plate (2) includes: the vibrating part (22); an external frame part (23) surrounding an outer periphery of the vibrating part (22); and a connecting part (24) connecting the vibrating part (22) to the external frame part (23). A first extraction electrode (223) drawn from a first excitation electrode (221) is formed on a first main surface of the connecting part (24) while a second extraction electrode (224) drawn from a second excitation electrode (222) is formed on a second main surface thereof. A wiring pattern (33) connected to the first extraction electrode (223) is formed on a second main surface (312) of the first sealing member (3). At least part of the wiring pattern (33) is disposed to be superimposed to a space between the vibrating part (22) and the external frame part (23) in plan view.

公开(公告)号：US09831414B2

公开(公告)日：2017-11-28

申请号：US14406317

申请日：2013-03-27

Applicant: Daishinku Corporation

Inventor： Takuya Kojo

IPC: H01L41/053 ,  H03B5/36 ,  H03H9/05 ,  H01L41/047 ,  H03H9/17 ,  H03H9/10 ,  H01L23/00

CPC classification number: H01L41/053 ,  H01L24/13 ,  H01L24/16 ,  H01L24/48 ,  H01L24/81 ,  H01L24/85 ,  H01L41/0475 ,  H01L2224/13144 ,  H01L2224/16225 ,  H01L2224/16227 ,  H01L2224/48227 ,  H01L2224/81207 ,  H01L2924/00014 ,  H01L2924/12042 ,  H01L2924/3025 ,  H03B5/364 ,  H03H9/0547 ,  H03H9/0552 ,  H03H9/0561 ,  H03H9/1021 ,  H03H9/17 ,  H03H9/171 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/45015 ,  H01L2924/207

Abstract: A piezoelectric vibrator according to the invention has a base, an integrated circuit element, and a piezoelectric vibration element. The base has internal terminal pads, and external terminals including an AC output terminal. The base includes rectangular ceramic substrate layers stacked in at least three layers, each of which has castellations formed at four corners. Among the internal terminal pads, internal terminal pads for the integrated circuit element and internal terminal pads for the piezoelectric vibration element are connected to each other by externally exposed wiring patterns formed on upper surfaces of the castellations at the corners of the ceramic substrate constituting a middle layer.

公开(公告)号：US09219217B2

公开(公告)日：2015-12-22

申请号：US14381117

申请日：2013-01-08

Applicant: Daishinku Corporation

Inventor： Takuya Kojo

IPC: H03B5/32 ,  H01L41/047 ,  H01L41/053 ,  H03H9/05 ,  H03H9/10 ,  H03H9/19 ,  H01L41/09 ,  H03H9/02

CPC classification number: H01L41/047 ,  H01L41/0475 ,  H01L41/053 ,  H01L41/0913 ,  H01L2224/16225 ,  H01L2924/16195 ,  H03B5/32 ,  H03B2200/002 ,  H03B2200/0026 ,  H03H9/02086 ,  H03H9/0519 ,  H03H9/0523 ,  H03H9/0547 ,  H03H9/0552 ,  H03H9/10 ,  H03H9/1021 ,  H03H9/19

Abstract: A piezoelectric oscillator has an insulating base having a housing portion where internal terminal pads are formed, an integrated circuit (IC) element having rectangular pads bonded to the internal terminal (IT) pads, and a piezoelectric oscillation element (POE) connected to the base and IC element. The IT pads include two opposing first IT pads connected to the POE, two opposing second IT pads, one of which is for AC output, and two opposing third IT pads formed between the first IT pads and the second IT pads. Along a part of perimeter of the first IT pads, the third IT pads and wiring patterns which respectively extend the third IT pads are formed as conductive paths for blocking radiation noise. The first IT pads and the second IT pads are spaced apart with the conductive paths interposed therebetween.

Abstract translation: 压电振子具有绝缘基座，其具有形成有内部端子焊盘的壳体部分，具有与内部端子（IT）焊盘接合的矩形焊盘的集成电路（IC）元件，以及连接到基座的压电振荡元件（POE） 和IC元件。 IT焊盘包括连接到POE的两个相对的第一IT焊盘，两个相对的第二IT焊盘，其中一个用于AC输出，以及形成在第一IT焊盘和第二IT焊盘之间的两个相对的第三IT焊盘。 沿着第一IT垫的周边的一部分，分别延伸第三IT焊盘的第三IT焊盘和布线图形被形成为用于阻挡辐射噪声的导电路径。 第一IT焊盘和第二IT焊盘间隔开导电路径。