公开(公告)号：US06496354B2

公开(公告)日：2002-12-17

申请号：US10073076

申请日：2002-02-12

申请人： Yasuyuki Naito ,  Masaaki Taniguchi ,  Yoichi Kuroda ,  Takanori Kondo

发明人： Yasuyuki Naito ,  Masaaki Taniguchi ,  Yoichi Kuroda ,  Takanori Kondo

IPC分类号： H01G4228

CPC分类号： H01G4/30

摘要： First and second external terminal electrodes are formed on the same principal surface of a capacitor main body. The connection between first internal electrodes in the capacitor main body, the first external terminal electrode and the mutual connection between the plurality of first internal electrodes is achieved by a first connection portion. The connection between second internal electrodes, the second external terminal electrode and the mutual connection between the plurality of second internal electrodes is achieved by a second connection portion. The first and second connection portions are arranged alternately. Currents flow through the connection portions in opposite directions with the result that components of magnetic flux generated by such currents are cancelled and the ESL is reduced.

公开(公告)号：US06430025B2

公开(公告)日：2002-08-06

申请号：US09805079

申请日：2001-03-13

申请人： Yasuyuki Naito ,  Masaaki Taniguchi ,  Yoichi Kuroda ,  Takanori Kondo

发明人： Yasuyuki Naito ,  Masaaki Taniguchi ,  Yoichi Kuroda ,  Takanori Kondo

IPC分类号： H01G4005

CPC分类号： H01G4/012 ,  H01G4/01 ,  H01G4/232 ,  H01G4/30 ,  H05K1/0231 ,  H05K3/3442

摘要： A multilayer capacitor whose equivalent series inductance is reduced includes a capacitor main body having a generally rectangular parallelpiped shape with two principal surfaces in a face-to-face relationship with each other and four side surfaces connecting the principal surfaces. A capacitor unit is formed in the capacitor main body by a respective pair of first and second internal electrodes disposed in the main body in a face-to-face relationship with a dielectric material layer interposed therebetween. At least three first external electrodes are located on respective ones of the side surfaces of the capacitor main body, with at least one of the first external electrodes being located on each of at least three of the side surfaces. The first internal electrode has at least three first lead electrodes, each of which extends to and is electrically coupled to a respective one of the first external electrodes. A plurality of second external electrodes are located on respective side surfaces of the capacitor main body and the second internal electrode has an equal plurality of second lead electrodes, each extending to and being electrically coupled to a respective one of the second external electrodes.

摘要翻译： 等效串联电感减小的层叠电容器包括具有大致矩形的平行形状的电容器主体，其具有彼此面对面的两个主表面和连接主表面的四个侧表面。 电容器单元通过设置在主体中的相应的一对第一和第二内部电极以介电材料层的面对面关系形成在电容器主体中。 至少三个第一外部电极位于电容器主体的相应侧表面上，其中至少一个第一外部电极位于至少三个侧表面中的每一个上。 第一内部电极具有至少三个第一引线电极，每个第一引线电极延伸到第一外部电极的相应一个并且电耦合到相应的一个第一外部电极。 多个第二外部电极位于电容器主体的相应的侧表面上，并且第二内部电极具有相等的多个第二引线电极，每个第二引线电极延伸并电耦合到相应的一个第二外部电极。

公开(公告)号：US06407904B1

公开(公告)日：2002-06-18

申请号：US09501083

申请日：2000-02-09

申请人： Yoichi Kuroda ,  Yasuyuki Naito ,  Masaaki Taniguchi ,  Haruo Hori ,  Takanori Kondo ,  Michihiro Murata ,  Yoshitaka Tanino

发明人： Yoichi Kuroda ,  Yasuyuki Naito ,  Masaaki Taniguchi ,  Haruo Hori ,  Takanori Kondo ,  Michihiro Murata ,  Yoshitaka Tanino

IPC分类号： H01G4005

CPC分类号： H01G4/232 ,  H01G4/30 ,  H01L23/642 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/16 ,  H01L2924/01068 ,  H01L2924/15312 ,  H01L2924/19106 ,  H01L2924/3011 ,  H01L2224/05647 ,  H01L2924/00014

摘要： A multi-layer capacitor is constructed to minimize equivalent series inductance, increase resonance frequency, reduce the size of the capacitor and greatly improve the ease of mounting of the capacitor. A dimension in a length direction and a dimension in a width direction of a capacitor body are substantially equal, and a pattern of opposing first and second internal electrodes is substantially square. First lead-out portions of the first internal electrode and second lead-out portions of the second internal electrode are extended onto two side surfaces and two end surfaces. First external electrode terminals connected to the first lead-out portions and second external electrode terminals connected to the second lead-out portions are arranged so that they alternate adjacently and are arranged such that oppositely disposed external electrode terminals have opposite polarities.

摘要翻译： 构造了多层电容器，以使等效串联电感最小化，共振频率增加，减小电容器尺寸，大大提高了电容器的安装容易度。 电容器主体的长度方向的尺寸和宽度方向的尺寸基本相等，相反的第一和第二内部电极的图案基本上是正方形。 第一内部电极的第一引出部分和第二内部电极的第二引出部分延伸到两个侧表面和两个端部表面。 连接到第一引出部分的第一外部电极端子和连接到第二引出部分的第二外部电极端子被布置成使得它们相邻地交替并且被布置为使得相对设置的外部电极端子具有相反的极性。

公开(公告)号：US06370010B1

公开(公告)日：2002-04-09

申请号：US09511557

申请日：2000-02-23

申请人： Yoichi Kuroda ,  Masaaki Taniguchi ,  Yasuyuki Naito ,  Haruo Hori ,  Takanori Kondo

发明人： Yoichi Kuroda ,  Masaaki Taniguchi ,  Yasuyuki Naito ,  Haruo Hori ,  Takanori Kondo

IPC分类号： H01G4228

CPC分类号： H01G4/232 ,  H01G4/30 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/16225 ,  H01L2924/00014 ,  H01L2924/15174 ,  H05K1/0231 ,  H05K1/181 ,  H01L2224/05599

摘要： A multi-layer capacitor includes first and second side-surface terminal electrodes alternately arranged on four side surfaces of a capacitor body. First and second major-surface terminal electrodes are arranged on a major surface of the capacitor body. First and second internal electrodes which are opposed to each other within the capacitor body are respectively electrically connected at ends thereof to the first and second side-surface terminal electrodes, and are also respectively electrically connected to the first and second major-surface terminal electrodes through via hole conductors. With this arrangement, the directions of the currents flowing within the multi-layer capacitor are diversified, and the lengths of current-carrying paths are shortened so as to achieve a very low ESL value.

摘要翻译： 多层电容器包括交替布置在电容器主体的四个侧表面上的第一和第二侧面端子电极。 第一和第二主表面端子电极布置在电容器主体的主表面上。 在电容器体内彼此相对的第一和第二内部电极在端部分别电连接到第一和第二侧面端子电极，并且还分别电连接到第一和第二主表面端子电极，通过 通孔导体。 通过这种布置，在多层电容器内流动的电流的方向是多样化的，并且导流通路的长度被缩短以达到非常低的ESL值。

公开(公告)号：US06344961B1

公开(公告)日：2002-02-05

申请号：US09514769

申请日：2000-02-28

申请人： Yasuyuki Naito ,  Masaaki Taniguchi ,  Yoichi Kuroda ,  Haruo Hori ,  Takanori Kondo

发明人： Yasuyuki Naito ,  Masaaki Taniguchi ,  Yoichi Kuroda ,  Haruo Hori ,  Takanori Kondo

IPC分类号： H01G4228

CPC分类号： H01G4/232 ,  H01G4/30 ,  H01L23/49827 ,  H01L23/50 ,  H01L23/642 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/16 ,  H01L2224/16235 ,  H01L2924/00014 ,  H01L2924/01068 ,  H01L2924/15153 ,  H01L2924/1517 ,  H01L2924/15313 ,  H01L2924/19106 ,  H01L2924/3011 ,  H05K1/0231 ,  H05K2201/10515 ,  H05K2201/10734 ,  H01L2224/05599

摘要： A multi-layer capacitor is constructed to minimize equivalent series inductance (ESL) and includes first inner electrodes and second inner electrodes disposed opposite to each other. The first inner electrodes are electrically connected to a first outer terminal electrode via a first feed-through conductor and the second inner electrodes are electrically connected to a second outer terminal electrode via a second feed-through conductor. The first and second feed-through conductors are arranged in such a manner that magnetic fields induced by current flowing through the inner electrodes are cancelled. In addition, some of these feed-through conductors are arranged to define first and second peripheral feed-through conductors connected to the first and second inner electrodes at each periphery of the first and second inner electrodes.

摘要翻译： 构造多层电容器以使等效串联电感（ESL）最小化，并且包括彼此相对布置的第一内部电极和第二内部电极。 第一内部电极经由第一馈通导体电连接到第一外部端子电极，并且第二内部电极经由第二馈通导体电连接到第二外部末端电极。 第一和第二馈通导体被布置成使得流过内部电极的电流感应的磁场被消除。 此外，这些馈通导体中的一些布置成限定在第一和第二内部电极的每个周边处连接到第一和第二内部电极的第一和第二外部馈通导体。

公开(公告)号：US06215647B1

公开(公告)日：2001-04-10

申请号：US09458154

申请日：1999-12-09

申请人： Yasuyuki Naito ,  Masaaki Taniguchi ,  Yoichi Kuroda ,  Takanori Kondo

发明人： Yasuyuki Naito ,  Masaaki Taniguchi ,  Yoichi Kuroda ,  Takanori Kondo

IPC分类号： H01G4005

CPC分类号： H01G4/012 ,  H01G4/01 ,  H01G4/232 ,  H01G4/30 ,  H05K1/0231 ,  H05K3/3442

摘要： A multilayer capacitor whose equivalent series inductance is reduced includes a capacitor main body having a generally rectangular parallelpiped shape with two principal surfaces in a face-to-face relationship with each other and four side surfaces connecting the principal surfaces. A capacitor unit is formed in the capacitor main body by a respective pair of first and second internal electrodes disposed in the main body in a face-to-face relationship with a dielectric material layer interposed therebetween. At least three first external electrodes are located on respective ones of the side surfaces of the capacitor main body, with at least one of the first external electrodes being located on each of at least three of the side surfaces. The first internal electrode has at least three first lead electrodes, each of which extends to and is electrically coupled to a respective one of the first external electrodes. A plurality of second external electrodes are located on respective side surfaces of the capacitor main body and the second internal electrode has an equal plurality of second lead electrodes, each extending to and being electrically coupled to a respective one of the second external electrodes.

公开(公告)号：US06191932B1

公开(公告)日：2001-02-20

申请号：US09302458

申请日：1999-04-29

申请人： Yoichi Kuroda ,  Masaaki Taniguchi ,  Yasuyuki Naito ,  Takanori Kondo

发明人： Yoichi Kuroda ,  Masaaki Taniguchi ,  Yasuyuki Naito ,  Takanori Kondo

IPC分类号： H01G4005

CPC分类号： H01G4/232

摘要： A monolithic capacitor which can reduce equivalent series inductance (ESL) thereof includes a first extension of a first internal electrode which is extended onto two sides of a capacitor itself. A second extension of the first internal electrode is extended onto a first end face; and a first external terminal electrode and a second external terminal electrode are connected to the first extension and the second extension, respectively. In addition, a third extension of a second internal electrode opposing the first internal electrode is extended onto the two sides of the capacitor and a fourth extension of the second internal electrode is extended onto a second end face. The third extension and fourth extension are connected to a third external terminal electrode and a fourth external terminal electrode, respectively. Furthermore, each width of the second extension and the fourth extension is longer than each width of the first extension and the third extension, and at the same time is not shorter than {fraction (1/9)}, and is more preferably ⅕ of each width of the two internal electrodes.

摘要翻译： 可以减小其等效串联电感（ESL）的单片电容器包括延伸到电容器本身的两侧的第一内部电极的第一延伸。 第一内部电极的第二延伸部延伸到第一端面上; 并且第一外部端子电极和第二外部端子电极分别连接到第一延伸部和第二延伸部。 此外，与第一内部电极相对的第二内部电极的第三延伸部延伸到电容器的两侧，并且第二内部电极的第四延伸部延伸到第二端面。 第三延伸部和第四延伸部分别与第三外部端子电极和第四外部端子电极连接。 此外，第二延伸部和第四延伸部的每个宽度比第一延伸部和第三延伸部的宽度长，并且同时不短于{分数（1/9）}，并且更优选为 两个内部电极的每个宽度。

公开(公告)号：US06188565B1

公开(公告)日：2001-02-13

申请号：US09390861

申请日：1999-09-03

申请人： Yasuyuki Naito ,  Masaaki Taniguchi ,  Yoichi Kuroda ,  Takanori Kondo

发明人： Yasuyuki Naito ,  Masaaki Taniguchi ,  Yoichi Kuroda ,  Takanori Kondo

IPC分类号： H01G4005

CPC分类号： H01G4/012 ,  H01G4/01 ,  H01G4/232 ,  H01G4/30 ,  H05K1/0231 ,  H05K3/3442

摘要： A multilayer capacitor whose equivalent series inductance is reduced includes a capacitor main body having a generally rectangular parallelpiped shape with two principal surfaces in a face-to-face relationship with each other and four side surfaces connecting the principal surfaces. A capacitor unit is formed in the capacitor main body by a respective pair of first and second internal electrodes disposed in the main body in a face-to-face relationship with a dielectric material layer interposed therebetween. At least three first external electrodes are located on respective ones of the side surfaces of the capacitor main body, with at least one of the first external electrodes being located on each of at least three of the side surfaces. The first internal electrode has at least three first lead electrodes, each of which extends to and is electrically coupled to a respective one of the first external electrodes. A plurality of second external electrodes are located on respective side surfaces of the capacitor main body and the second internal electrode has an equal plurality of second lead electrodes, each extending to and being electrically coupled to a respective one of the second external electrodes.

摘要翻译： 等效串联电感减小的层叠电容器包括具有大致矩形的平行形状的电容器主体，其具有彼此面对面的两个主表面和连接主表面的四个侧表面。 电容器单元通过设置在主体中的相应的一对第一和第二内部电极以介电材料层的面对面关系形成在电容器主体中。 至少三个第一外部电极位于电容器主体的相应侧表面上，其中至少一个第一外部电极位于至少三个侧表面中的每一个上。 第一内部电极具有至少三个第一引线电极，每个第一引线电极延伸到第一外部电极的相应一个并且电耦合到相应的一个第一外部电极。 多个第二外部电极位于电容器主体的相应的侧表面上，并且第二内部电极具有相等的多个第二引线电极，每个第二引线电极延伸并电连接到相应的一个第二外部电极。

公开(公告)号：US6072687A

公开(公告)日：2000-06-06

申请号：US42379

申请日：1998-03-13

申请人： Yasuyuki Naito ,  Masaaki Taniguchi ,  Yoichi Kuroda ,  Takanori Kondo

发明人： Yasuyuki Naito ,  Masaaki Taniguchi ,  Yoichi Kuroda ,  Takanori Kondo

IPC分类号： H01G4/01 ,  H01G4/012 ,  H01G4/232 ,  H01G4/30 ,  H05K1/02 ,  H05K3/34 ,  H01G4/005 ,  H01G4/228

CPC分类号： H01G4/012 ,  H01G4/01 ,  H01G4/232 ,  H01G4/30 ,  H05K1/0231 ,  H05K3/3442

摘要： A multilayer capacitor whose equivalent series inductance is reduced includes a capacitor main body having a generally rectangular parallelpiped shape with two principal surfaces in a face-to-face relationship with each other and four side surfaces connecting the principal surfaces. A capacitor unit is formed in the capacitor main body by a respective pair of first and second internal electrodes disposed in the main body in a face-to-face relationship with a dielectric material layer interposed therebetween. At least three first external electrodes are located on respective ones of the side surfaces of the capacitor main body, with at least one of the first external electrodes being located on each of at least three of the side surfaces. The first internal electrode has at least three first lead electrodes, each of which extends to and is electrically coupled to a respective one of the first external electrodes. A plurality of second external electrodes are located on respective side surfaces of the capacitor main body and the second internal electrode has an equal plurality of second lead electrodes, each extending to and being electrically coupled to a respective one of the second external electrodes.

公开(公告)号：US5173670A

公开(公告)日：1992-12-22

申请号：US671931

申请日：1991-03-20

申请人： Yasuyuki Naito ,  Hiroshi Morii ,  Takeshi Azumi ,  Yoshiaki Kohno

发明人： Yasuyuki Naito ,  Hiroshi Morii ,  Takeshi Azumi ,  Yoshiaki Kohno

IPC分类号： H03H1/00

CPC分类号： H03H1/0007 ,  H01G2/22

摘要： A method of designing a .pi. type LC filter includes laminating dielectric layers on top and bottom sections of a magnetic material layer, forming a first external electrode and a second external electrode on each end of the laminated body, forming a third external electrode at a center section of the laminated body, forming an inductor by at least one conductor line within the magnetic material layer, connecting one end of the conductor line to the first external electrode and the other end thereof to the second external electrode, and forming a first capacitor composed of a parallel capacitor electrode within the top dielectric layer. One of the parallel capacitor electrodes is connected to the first external electrode and the other is connected to the third external electrode. Additionally, a second capacitor is formed composed of a pair of parallel capacitor electrodes within the bottom dielectric layer. One of the parallel capacitor electrodes is connected to the second external electrode and the other to the third external electrode. The .pi. type LC filter is mounted on a substrate having at least three electrodes wherein first and second lead inductance components L.sub.1 and L.sub.2 are formed. The external electrodes and capacitor electrodes are shaped and sized such that a ratio .alpha. (L.sub.1 /L.sub.2 or L.sub.2 /L.sub.1) is greater than or equal to 1.2 and less than or equal to 2.3.

摘要翻译： 设计π型LC滤波器的方法包括在磁性材料层的顶部和底部上层叠电介质层，在层叠体的每一端形成第一外部电极和第二外部电极，在中心形成第三外部电极 在所述磁性体层中形成由至少一根导体线构成的电感器，将所述导体线的一端与所述第一外部电极的另一端连接到所述第二外部电极，形成第一电容器， 在顶部电介质层内的并联电容器电极。 并联电容器电极中的一个连接到第一外部电极，另一个连接到第三外部电极。 此外，在底部电介质层内形成由一对并联电容器电极构成的第二电容器。 并联电容电极中的一个连接到第二外部电极，而另一个连接到第三外部电极。 pi型LC滤波器安装在具有至少三个电极的基板上，其中形成有第一和第二引线电感分量L1和L2。 外部电极和电容器电极的形状和尺寸使得α（L1 / L2或L2 / L1）的比率大于或等于1.2且小于或等于2.3。