Multilayer piezoelectric transformer
    21.
    发明授权
    Multilayer piezoelectric transformer 失效
    多层压电变压器

    公开(公告)号:US06452313B2

    公开(公告)日:2002-09-17

    申请号:US09823552

    申请日:2001-03-30

    IPC分类号: H01L41047

    CPC分类号: H01L41/107

    摘要: A piezoelectric transformer comprises one or more input parts having first internal electrodes and input terminals and an output part having second internal electrodes and output terminals. Each of the second internal electrodes has an area larger than that of each of the first internal electrodes. By such configuration, output power is increased while heat generation is suppressed and size thereof is not increased.

    摘要翻译: 压电变压器包括具有第一内部电极和输入端子的一个或多个输入部件和具有第二内部电极和输出端子的输出部件。 每个第二内部电极具有比每个第一内部电极的面积大的面积。 通过这样的结构,能够抑制发热,并且不增大发电量,从而提高输出功率。

    Solid dielectric capacitor and method of manufacture

    公开(公告)号:US5103370A

    公开(公告)日:1992-04-07

    申请号:US620834

    申请日:1990-11-29

    IPC分类号: C04B35/49 H01G4/12

    摘要: A monolithic capacitor having a dielectric ceramic body cosintered with at least two base metal electrodes. The ceramic body is composed of a major ingredient expressed by the formula(1-.alpha.){(Ba.sub.k-x M.sub.x)O.sub.k (Ti.sub.1-y R.sub.y)O.sub.2-(y/2) }+.alpha.CaZrO.sub.3where M is either or both of magnesium and zinc, R is a rare earth element or elements, and .alpha., k, x and y are numerals in specified ranges. To this major ingredient is added a minor proportion of a first additive ingredient and a second additive ingredient. The first additive ingredient is at least either of chromium oxide and aluminum oxide. The second additive ingredient is a mixture of boric oxide or lithium oxide, silicon dioxide and at least one metal oxide selected from among barium oxide, strontium oxide, calcium oxide, magnesium oxide and zinc oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere at temperatures of less than 1200 degrees C. and then are heated at a lower temperature in an oxidative atmosphere.

    Solid dielectric capacitor and method of manufacture

    公开(公告)号:US5077636A

    公开(公告)日:1991-12-31

    申请号:US618710

    申请日:1990-11-27

    IPC分类号: C04B35/49 H01G4/12

    摘要: A monolithic capacitor having a dielectric ceramic body cosintered with at least two base metal electrodes. The ceramic body is composed of a major ingredient expressed by the formula,(1-.alpha.){(Ba.sub.k-x-z M.sub.x L.sub.z)O.sub.k (Ti.sub.1-y R.sub.y)O.sub.2-(y/2) }+.alpha.CaZrO.sub.3where M is either or both of magnesium and zinc, L is either or both of calcium and magnesium, R is a rare earth element or elements, and .alpha., k, x, z and y are numerals in specified ranges. To this major ingredient is added a minor proportion of an additive ingredient. The additive ingredient is a mixture of boric oxide or lithium oxide, silicon dioxide and at least one metal oxide selected from among barium oxide, strontium oxide, calcium oxide, magnesium oxide and zinc oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere at temperatures of less than 1200 degrees C. and then are heated at a lower temperature in an oxidative atmosphere.

    Low temperature sintered ceramic capacitor with a temperature
compensating capability, and method of manufacture
    26.
    发明授权
    Low temperature sintered ceramic capacitor with a temperature compensating capability, and method of manufacture 失效
    具有温度补偿能力的低温烧结陶瓷电容器及其制造方法

    公开(公告)号:US4700267A

    公开(公告)日:1987-10-13

    申请号:US945334

    申请日:1986-12-22

    摘要: A temperature compensating capacitor of monolithic or multilayered configuration comprising a dielectric ceramic body and at least two electrodes buried therein. The ceramic body is composed of a major ingredient expressed by the formula, {(Sr.sub.1-x-y Ca.sub.x M.sub.y)O}.sub.k (Ti.sub.1-z Zr.sub.z)O.sub.2, where M is at least either of magnesium and zinc, and where x, y, k and z are numerals in the ranges of zero to 0.995 inclusive, 0.005 to 0.100 inclusive, 1.00 to 1.04 inclusive, and 0.005 to 0.100 inclusive, respectively. To this major ingredient is added a minor proportion of a mixture of lithium oxide, silicon dioxide, and one or more metal oxides selected from among barium oxide, magnesium oxide, zinc oxide, strontium oxide and calcium oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere and then are reheated at a lower temperature in an oxidative atmosphere. The cosintering temperature can be so low that nickel or like base metal can be employed as the electrode material.

    摘要翻译: 一种单片或多层结构的温度补偿电容器,包括介电陶瓷体和埋在其中的至少两个电极。 陶瓷体由以下式表示的主要成分{(Sr1-x-yCaxMy)O} k(Ti1-zZrz)O2组成,其中M是镁和锌中的至少一种,其中x,y,k z分别为0〜0.995,0.005〜0.100,包括1.00〜1.04,0.005〜0.100的数字。 在该主要成分中加入少量的氧化锂,二氧化硅和选自氧化钡,氧化镁,氧化锌,氧化锶和氧化钙中的一种或多种金属氧化物的混合物。 为了制造电容器,将上述主要成分和细分散形式的添加剂的混合物形成为所需形状和尺寸的模制品,其中至少埋设有两个电极。 模制品和电极在还原或中性气氛中共烧结,然后在较低温度下在氧化气氛中再加热。 整个烧结温度可以低到可以使用镍或类似的贱金属作为电极材料。

    Low temperature sintered ceramic capacitor with a temperature
compensating capability, and method of manufacture
    27.
    发明授权
    Low temperature sintered ceramic capacitor with a temperature compensating capability, and method of manufacture 失效
    具有温度补偿能力的低温烧结陶瓷电容器及其制造方法

    公开(公告)号:US4700265A

    公开(公告)日:1987-10-13

    申请号:US934685

    申请日:1986-11-25

    摘要: A temperature compensating capacitor of monolithic or multilayered configuration comprising a dielectric ceramic body and at least two electrodes buried therein. The ceramic body is composed of a major ingredient expressed by the formula, (SrO).sub.k.(Zr.sub.1-x Ti.sub.x)O.sub.2, where k and x are numerals in the ranges of 0.8 to 1.3 inclusive and of zero to 0.25 inclusive, respectively. To this major ingredient is added a minor proportion of a mixture of lithium oxide, silicon dioxide, and one or more metal oxides selected from among barium oxide, magnesium oxide, zinc oxide, strontium oxide and calcium oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere and then are reheated at a lower temperature in an oxidative atmosphere. The cosintering temperature can be so low that nickel or like base metal can be employed as the electrode material.

    摘要翻译: 一种单片或多层结构的温度补偿电容器,包括介电陶瓷体和埋在其中的至少两个电极。 陶瓷体由以下公式表示的主要成分(SrO)k。(Zr1-xTix)O2组成,其中k和x分别为0.8〜1.3的数值和0〜0.25的数值。 在该主要成分中加入少量的氧化锂,二氧化硅和选自氧化钡,氧化镁,氧化锌,氧化锶和氧化钙中的一种或多种金属氧化物的混合物。 为了制造电容器,将上述主要成分和细分散形式的添加剂的混合物形成为所需形状和尺寸的模制品,其中至少埋设有两个电极。 模制品和电极在还原或中性气氛中共烧结,然后在较低温度下在氧化气氛中再加热。 整个烧结温度可以低到可以使用镍或类似的贱金属作为电极材料。

    Method and apparatus for manufacturing vitreous silica crucible
    29.
    发明授权
    Method and apparatus for manufacturing vitreous silica crucible 有权
    石英玻璃坩埚的制造方法和装置

    公开(公告)号:US08769988B2

    公开(公告)日:2014-07-08

    申请号:US13308277

    申请日:2011-11-30

    IPC分类号: C03B19/09 C03B29/02

    摘要: Provided is a method for manufacturing a vitreous silica crucible and a manufacturing apparatus for the same, which can reduce the amount of bubbles and impurities of a crucible inner surface and enhance a crystallization yield of silicon single crystal. A method for manufacturing a vitreous silica crucible of the invention includes a silica powder supplying process of supplying silica powder in a rotating mold to form a silica powder layer; an arc fusing process of fusing the silica powder layer by arc discharge generated by carbon electrodes; and a fire polishing process of throwing an arc flame toward a target surface of the silica powder layer for surface removal, wherein, in the fire polishing process, the distances from the tips of the carbon electrodes to the target surface is set to be equal.

    摘要翻译: 提供一种制造石英玻璃坩埚及其制造装置的方法,其可以减少坩埚内表面的气泡和杂质的量,并提高单晶硅的结晶产率。 本发明的石英玻璃坩埚的制造方法包括在旋转模具中供给二氧化硅粉末以形成二氧化硅粉末层的二氧化硅粉末供给工序; 通过由碳电极产生的电弧放电使二氧化硅粉末层熔融的电弧熔合工艺; 以及向二氧化硅粉末层的靶表面投射弧形火焰以进行表面去除的火抛光处理,其中,在火焰研磨处理中,将从碳电极的前端到目标表面的距离设定为相等。