公开(公告)号：US6052272A

公开(公告)日：2000-04-18

申请号：US39088

申请日：1998-03-13

申请人： Yoichi Kuroda ,  Yukio Honda ,  Kazumi Osuga

发明人： Yoichi Kuroda ,  Yukio Honda ,  Kazumi Osuga

IPC分类号： H01G4/12 ,  H01G4/30 ,  H01G4/38 ,  H01G4/00

CPC分类号： H01G4/385 ,  H01G4/30

摘要： A laminated capacitor that can be made small in size, that can prevent flashover, has excellent dielectric strength performance and a large capacitance is disclosed. Each gap between internal electrodes in the same plane is set at 2.7 to 20 times a thickness (element thickness) of a dielectric layer positioned between first and second internal electrode groups which face each other and a distance between an edge of the external terminal and an edge of the floating internal electrode closest to the external terminal among floating internal electrodes of the internal electrode group of the outermost layer is set at 0.4 mm to 1.4 mm.

摘要翻译： 可以制造可以防止闪络的尺寸小的层叠电容器，具有优异的介电强度性能和大电容。 同一平面内的内部电极之间的间隙设定为位于彼此面对的第一和第二内部电极组之间的电介质层的厚度（元件厚度）的2.7〜20倍，外部端子的边缘与 最外层的内部电极组的浮动内部电极中最靠近外部端子的浮动内部电极的边缘设定为0.4mm至1.4mm。

公开(公告)号：US5812363A

公开(公告)日：1998-09-22

申请号：US853319

申请日：1997-05-08

申请人： Yoichi Kuroda ,  Yukio Honda ,  Kazumi Osuga

发明人： Yoichi Kuroda ,  Yukio Honda ,  Kazumi Osuga

IPC分类号： H01G4/12 ,  H01G4/30 ,  H01G4/228

CPC分类号： H01G4/30

摘要： A multilayer capacitor capable of having reducing electrical field intensity at external electrode edges while preventing occurrence of surface dielectric breakdown. This multilayer capacitor has a capacitor main body which includes a capacitance formation section having alternately laminated pluralities of internal electrodes and dielectric layers, and outer dielectric layer sections laminated on the upper and lower surfaces of the capacitance formation section. The capacitor also has external electrodes formed on respective opposite external side surfaces of the capacitor main body and each connected to certain ones of the internal electrodes. The outer layer sections each have respective dielectric breakdown prevention layers therein, each of which exhibits a carefully designed relative dielectric constant .epsilon. which is less than that of the dielectric layers in the capacitance formation section, and not more than 300, and has a thickness d �.mu.m! satisfying the relation: d>(0.2.times..epsilon.)+20.

摘要翻译： 一种能够在外部电极边缘处具有降低的电场强度同时防止表面电介质击穿的层叠电容器。 该层叠电容器具有电容器主体，该电容器主体包括具有交替层叠的多个内部电极和电介质层的电容形成部和层叠在电容形成部的上表面和下表面的外部电介质层部。 电容器还具有形成在电容器主体的相对的相对的外侧表面上并且各自连接到某些内部电极的外部电极。 外层部分各自具有各自的绝缘击穿防止层，其中每一个都具有小于电容形成部分中的电介质层的相对介电常数ε，并且不大于300，并且具有厚度d 满足关系：d>（0.2xε）+ 20。