公开(公告)号：US20110163821A1

公开(公告)日：2011-07-07

申请号：US13048334

申请日：2011-03-15

申请人： Hiroyuki Souma ,  Seigo Fukuchi ,  Satoshi Shimizu

发明人： Hiroyuki Souma ,  Seigo Fukuchi ,  Satoshi Shimizu

IPC分类号： H03B5/12

CPC分类号： H03B5/364 ,  H03H9/14597

摘要： In a circuit including a CMOS inverter (inverting amplifier) (IV02), a floating capacitance resulting from the circuit and peripheral interconnections thereof is Cs, a capacitive element (Cg) is connected to the input side of the CMOS inverter (inverting amplifier) (IV02), a capacitive element (Cd) is connected to the output side thereof, and the capacitances of the capacitive element (Cg) and the capacitive element (Cd) are determined (tuned) so that a load capacitance (CL) of a piezoelectric vibrator (X2) satisfies a relational expression “CL=Cs+Cg×Cd/(Cg+Cd)”. By determining the capacitances of the capacitive element (Cg) and the capacitive element (Cd) in this way, it is possible to improve the oscillation frequency stability with respect to a variation in capacitance value of the load capacitance (CL) in a region of a low load capacitance (CL) (for example, 3 pF).

摘要翻译： 在包括CMOS反相器（反相放大器）（IV02）的电路中，由电路及其外围互连产生的浮动电容为Cs，电容元件（Cg）连接到CMOS反相器（反相放大器）的输入侧 IV02），电容元件（Cd）连接到其输出侧，并且电容元件（Cg）和电容元件（Cd）的电容被确定（调谐），使得压电元件的负载电容（CL） 振动器（X2）满足关系式“CL = Cs + Cg×Cd /（Cg + Cd）”。 通过以这种方式确定电容元件（Cg）和电容元件（Cd）的电容，可以提高相对于负载电容（CL）的电容值的变化的振荡频率稳定性 低负载电容（CL）（例如3 pF）。

公开(公告)号：US07581297B2

公开(公告)日：2009-09-01

申请号：US11409653

申请日：2006-04-24

申请人： Masayuki Sato ,  Seigo Fukuchi ,  Atsushi Tomisaki

发明人： Masayuki Sato ,  Seigo Fukuchi ,  Atsushi Tomisaki

IPC分类号： H01G7/00

CPC分类号： H04R17/00 ,  Y10T29/42 ,  Y10T29/435 ,  Y10T29/49128 ,  Y10T29/4913 ,  Y10T29/49139 ,  Y10T29/49155

摘要： A piezoelectric vibrator has an airtight terminal comprised of a lead terminal and a piezoelectric member. The lead terminal has an inner lead portion and an outer lead portion. The piezoelectric member has an exciting electrode and a mount electrode disposed on a surface of the piezoelectric member. A plasma arc electrode is connected to a power supply for generating a plasma arc discharge. To bond together the inner lead portion of the lead terminal to the mount electrode of the piezoelectric member, the outer lead portion is connected to an output terminal of the power supply and the plasma arc electrode is positioned at a vicinity of a bonding portion for bonding together the inner lead portion and the mount electrode. A voltage is applied between the inner lead portion and the plasma arc electrode to generate a plasma arc discharge. The generated plasma arc is discharged to the bonding portion while subjecting at least the bonding portion to an argon gas atmosphere to thereby bond together with a solder the inner lead portion and the mount electrode.

摘要翻译： 压电振子具有由引线端子和压电部件构成的气密端子。 引线端子具有内部引线部分和外部引线部分。 压电元件具有设置在压电元件表面上的激励电极和安装电极。 等离子弧电极连接到用于产生等离子体电弧放电的电源。 为了将引线端子的内部引线部分接合到压电部件的安装电极，外部引线部分连接到电源的输出端子，等离子弧电极位于用于接合的接合部分附近 内引线部分和安装电极在一起。 在内引线部分和等离子体电弧电极之间施加电压以产生等离子体电弧放电。 所产生的等离子体电弧被放电到接合部分，同时至少将接合部分进行氩气气氛，从而与焊料一起与内引线部分和安装电极接合。

公开(公告)号：US20060238076A1

公开(公告)日：2006-10-26

申请号：US11409653

申请日：2006-04-24

申请人： Masayuki Sato ,  Seigo Fukuchi ,  Atsushi Tomisaki

发明人： Masayuki Sato ,  Seigo Fukuchi ,  Atsushi Tomisaki

IPC分类号： H04R17/00

CPC分类号： H04R17/00 ,  Y10T29/42 ,  Y10T29/435 ,  Y10T29/49128 ,  Y10T29/4913 ,  Y10T29/49139 ,  Y10T29/49155

摘要： To provide a method of fabricating a piezoelectric vibrator capable of excellently bonding a lead terminal and a piezoelectric vibrating piece despite being small-sized for ensuring an accuracy of a frequency and various properties and reliability of the piezoelectric vibrator, there is provided a method of fabricating a piezoelectric vibrator including an airtight terminal having a lead terminal and a piezoelectric vibrating piece comprising a piezoelectric member and formed with an exciting electrode and a mount electrode at a surface thereof, in which an inner lead of the lead terminal and the mount electrode are bonded, wherein when the inner lead and the mount electrode are bonded, a plasma arc is discharged to a portion of bonding the inner lead and the mount electrode in argon gas to bond the inner lead and the mount electrode by a solder, thereby, a controlled heat amount is locally supplied and therefore, solid bonding can be carried out and the piezoelectric vibrator having high reliability can be provided.

摘要翻译： 为了提供一种制造能够极好地接合引线端子和压电振动片的压电振动器的方法，尽管小型化，以确保压电振子的频率和各种性能和可靠性的精度，但是提供了一种制造方法 一种包括具有引线端子的气密端子和包括压电元件的压电振动片的压电振子，所述压电振动片在其表面上形成有激励电极和安装电极，其中引线端子和安装电极的内部引线被接合 其中，当内引线和安装电极接合时，将等离子体电弧放电到内部引线和安装电极在氩气中接合的部分，以通过焊料将内引线和安装电极接合，由此被控制 热量局部供给，因此可以进行固体接合，并且具有h的压电振动器 可以提供高可靠性。