JP2000100654A - Stacked ceramic capacitor - Google Patents
Stacked ceramic capacitorInfo
- Publication number
- JP2000100654A JP2000100654A JP10285938A JP28593898A JP2000100654A JP 2000100654 A JP2000100654 A JP 2000100654A JP 10285938 A JP10285938 A JP 10285938A JP 28593898 A JP28593898 A JP 28593898A JP 2000100654 A JP2000100654 A JP 2000100654A
- Authority
- JP
- Japan
- Prior art keywords
- multilayer ceramic
- internal electrode
- ceramic capacitor
- electrode layer
- capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電子機器の受動部
品として用いられる積層セラミックコンデンサに係わ
り、特に電子回路の保護機能としてヒューズ機能を有す
る積層セラミックコンデンサに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multilayer ceramic capacitor used as a passive component of electronic equipment, and more particularly to a multilayer ceramic capacitor having a fuse function as a protection function of an electronic circuit.
【０００２】[0002]
【従来の技術】誘電体セラミック層と低抵抗導体からな
る内部電極層とを交互に複数回積み重ねて形成される積
層セラミックコンデンサは、その構造上、製造過程にお
ける種々のストレスが誘電体セラミック層と内部電極層
の境界に集中し、歪みや層間剥離を生じさせることがあ
る。このような積層セラミックコンデンサにおいては、
その使用中に誘電体セラミック層の絶縁性の劣化が生じ
ると、内部電極層間が狭く、歪みなどが残留している部
分から短絡故障が発生する。短絡故障が発生すると、誘
電体セラミックの一部分に電流が集中するため、ジュー
ル熱によってコンデンサが発熱し、コンデンサ全体が短
絡状態となり、電子回路全体を損傷させる問題点があっ
た。2. Description of the Related Art A multilayer ceramic capacitor formed by alternately stacking a dielectric ceramic layer and an internal electrode layer made of a low-resistance conductor a plurality of times alternately has various stresses in the manufacturing process due to its structure. It may concentrate on the boundary of the internal electrode layer and cause distortion or delamination. In such a multilayer ceramic capacitor,
If the insulating property of the dielectric ceramic layer deteriorates during its use, a short circuit fault occurs from a portion where the internal electrode layer is narrow and distortion or the like remains. When a short-circuit fault occurs, current concentrates on a part of the dielectric ceramic, so that the capacitor generates heat due to Joule heat, and the entire capacitor is short-circuited, thus causing a problem that the entire electronic circuit is damaged.
【０００３】このような欠点を解決するため、外部電極
とリード線との間にヒューズを挿入する方法や、内部電
極層の一部に低融点金属による狭窄部を設けたり、ヒュ
ーズとして内部電極の金属より高抵抗の金属部を設け
て、ヒューズ機能を持たせたりする方法が提案されてい
る。[0003] In order to solve such disadvantages, a method of inserting a fuse between an external electrode and a lead wire, a method of providing a constriction portion of a low melting point metal in a part of an internal electrode layer, and a method of forming a fuse of an internal electrode as a fuse are described. A method has been proposed in which a metal part having a higher resistance than metal is provided to have a fuse function.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、外部電
極とリード線間にヒューズを挿入する方法は、実装のス
ペース状、不利であり、かつ、コンデンサ特性上、リー
ド線によるインダクタンスの発生により高周波帯でイン
ピーダンスが高くなり、高周波帯での使用が困難であ
り、また、リード線による部品点数の増加により、コス
トが高くなるばかりでなく、不具合の発生でヒューズが
溶断すると、コンデンサの機能が失われてしまうという
欠点があった。However, the method of inserting a fuse between an external electrode and a lead wire is disadvantageous in terms of mounting space and in terms of the characteristics of a capacitor. Impedance is high, it is difficult to use in the high frequency band, and the increase in the number of parts due to lead wires not only increases the cost, but also if the fuse blows due to failure, the function of the capacitor is lost There was a disadvantage that it would.
【０００５】内部電極層にヒューズ機能を付与する方法
は、不具合が発生した部分のみオープンモードとして、
コンデンサの機能を完全に失わせることはないが、内部
電極層の一部にヒューズ機能として低融点金属による狭
窄部等を設けたり、高抵抗の金属を用いるため、インダ
クタンスの発生や抵抗が高くなって、コンデンサの自己
共振周波数は低くなり、高周波帯での使用が困難になる
という問題点があった。A method of providing a fuse function to an internal electrode layer is to set an open mode only in a portion where a defect has occurred,
Although the function of the capacitor will not be completely lost, the occurrence of inductance and resistance will increase due to the provision of a constriction part with a low melting point metal as a fuse function in a part of the internal electrode layer or the use of a high resistance metal. As a result, the self-resonant frequency of the capacitor becomes low, which makes it difficult to use the capacitor in a high frequency band.
【０００６】本発明は、上記のような課題を解決すべく
提案されたものであり、その目的は、積層セラミックコ
ンデンサが短絡故障を生じた際に、その短絡部分を局所
的にオープンとし、コンデンサ全体の機能を失うことな
く、高周波帯での周波数特性が良好で、量産性に優れた
高信頼性を有する積層セラミックコンデンサを提供する
ことである。SUMMARY OF THE INVENTION The present invention has been proposed to solve the above-described problems. It is an object of the present invention to provide a multilayer ceramic capacitor in which, when a short-circuit fault occurs, the short-circuited portion is locally opened and the capacitor is opened. An object of the present invention is to provide a multilayer ceramic capacitor having good frequency characteristics in a high frequency band, high mass productivity, and high reliability without losing the entire function.
【０００７】[0007]
【課題を解決するための手段】本発明に係わる積層セラ
ミックコンデンサは、誘電体セラミック層と低抵抗導体
からなる内部電極層とを交互に複数回数積み重ねて形成
する積層セラミック体に外部電極層を設けてなる積層セ
ラミックコンデンサにおいて、容量の異なった複数の積
層コンデンサ部を積層すると共に、内部電極層に狭窄部
を設けて、ヒューズ機能を持つ素子部を付与することに
よって得られる。The multilayer ceramic capacitor according to the present invention is provided with an external electrode layer on a multilayer ceramic body formed by alternately stacking a dielectric ceramic layer and an internal electrode layer made of a low-resistance conductor a plurality of times. The multilayer ceramic capacitor is obtained by stacking a plurality of multilayer capacitor portions having different capacities, providing a constricted portion in the internal electrode layer, and providing an element portion having a fuse function.
【０００８】即ち、本発明は、誘電体セラミック層と低
抵抗導体からなる内部電極層とを交互に複数回数積み重
ねて形成する積層セラミック体に外部電極を設けてなる
積層セラミックコンデンサであって、誘電体セラミック
層の厚みの異なった複数の積層セラミック体を積層して
外部電極で一体化すると共に、内部電極層にヒューズ機
能をもつ素子部を付与した積層セラミックコンデンサで
ある。That is, the present invention relates to a multilayer ceramic capacitor in which external electrodes are provided on a multilayer ceramic body formed by alternately stacking a dielectric ceramic layer and an internal electrode layer made of a low-resistance conductor a plurality of times. A multilayer ceramic capacitor in which a plurality of multilayer ceramic bodies having different thicknesses of body ceramic layers are stacked and integrated with external electrodes, and an internal electrode layer is provided with an element portion having a fuse function.
【０００９】また、本発明は、前記の積層セラミックコ
ンデンサにおいて、ヒューズ機能を持つ素子部が各内部
電極層に付与されている積層セラミックコンデンサであ
る。Further, the present invention is the multilayer ceramic capacitor as described above, wherein an element portion having a fuse function is provided to each internal electrode layer.
【００１０】また、本発明は、前記の積層セラミックコ
ンデンサにおいて、内部電極層について交互にヒューズ
機能を持つ素子部を付与した積層セラミックコンデンサ
である。Further, the present invention is the multilayer ceramic capacitor described above, wherein the internal electrode layers are provided with element portions having a fuse function alternately.
【００１１】また、本発明は、前記の積層セラミックコ
ンデンサにおいて、内部電極層のヒューズ機能を持つ素
子部は、内部電極層の一部に狭窄部を設けた 積層セラ
ミックコンデンサである。Further, the present invention is the multilayer ceramic capacitor according to the above-mentioned multilayer ceramic capacitor, wherein the element portion having a fuse function of the internal electrode layer is provided with a constriction in a part of the internal electrode layer.
【００１２】また、本発明は、前記の積層セラミックコ
ンデンサにおいて、内部電極層の狭窄部は、狭窄部の断
面積が０.０００１ｍｍ2〜０.００１ｍｍ2の範囲で、抵
抗値が１Ω以上である積層セラミックコンデンサであ
る。[0012] The present invention also provides the multilayer ceramic capacitor, stenosis of the internal electrode layers, the cross-sectional area of the constriction is in the range of 0.0001mm 2 ~0.001mm 2, the resistance value is more than 1Ω This is a multilayer ceramic capacitor.
【００１３】以上のように構成した積層セラミックコン
デンサによれば、何らかの原因で使用中に故障して内部
電極層が短絡となった場合、ヒューズ機能が働き、部分
的にオープンモードとなるが、コンデンサ全体として
は、その機能を失うことはない。しかも、オープンモー
ドの部分は、ごく一部であり、電子回路全体の最低限の
機能を保持することができる。According to the multilayer ceramic capacitor configured as described above, if the internal electrode layer is short-circuited due to a failure during use for some reason, the fuse function is activated and a partial open mode is achieved. Overall, it does not lose its functionality. In addition, the open mode part is only a small part, and can hold the minimum functions of the entire electronic circuit.
【００１４】[0014]
【発明の実施の形態】以下に、本発明の実施の形態によ
る積層セラミックコンデンサについて図面を用いて説明
する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a multilayer ceramic capacitor according to an embodiment of the present invention will be described with reference to the drawings.
【００１５】図１は、本発明の実施の形態による積層セ
ラミックコンデンサの断面図である。この積層セラミッ
クコンデンサは、３つの積層セラミック体１，２，３
と、その外側に設けた２つの保護層４と、外部電極７か
ら構成されている。FIG. 1 is a sectional view of a multilayer ceramic capacitor according to an embodiment of the present invention. This multilayer ceramic capacitor has three multilayer ceramic bodies 1, 2, 3
And two protective layers 4 provided on the outside thereof and an external electrode 7.
【００１６】ここで、積層セラミック体の各静電容量
は、積層セラミック体１の静電容量＞積層セラミック体
２の静電容量＞積層セラミック体３の静電容量、の順
で、誘電体セラミック層の厚みが薄く多層構造のものが
高い静電容量を有する。また、その各層にヒューズ機能
を持つ素子部５を有している構成となっている。Here, the respective capacitances of the multilayer ceramic body are in the order of the capacitance of the multilayer ceramic body 1> the capacitance of the multilayer ceramic body 2> the capacitance of the multilayer ceramic body 3. A thin layer having a multilayer structure has a high capacitance. Further, each layer has an element portion 5 having a fuse function.
【００１７】図２は、本発明に係わるの積層セラミック
コンデンサの断面図で、図１と異なり内部電極層の数層
間隔でヒューズ機能を持つ素子部５を有している構成と
なっている。FIG. 2 is a cross-sectional view of the multilayer ceramic capacitor according to the present invention. Unlike FIG. 1, the multilayer ceramic capacitor has an element portion 5 having a fuse function at intervals of several internal electrode layers.
【００１８】図３は、内部電極層６に狭窄部８を設けて
ヒューズ機能を持つ素子部５を設けた例の斜視図であ
る。一般的に、短絡現象は、歪が存在したり、誘電体セ
ラミック層が薄い部分に集中して発生することが多い。
図３は、本発明におけるヒューズ機能を設けた積層セラ
ミック体の一部断面斜視図であるが、ヒューズ機能を持
つ素子部５は、前述の理由で、短絡現象の生じやすい誘
電体セラミック層の薄い部分、言い換えれば、静電容量
の大きい積層コンデンサ部、もしくは積層セラミックコ
ンデンサの内部電極層６と外部電極７間に形成する。FIG. 3 is a perspective view of an example in which a constriction portion 8 is provided in the internal electrode layer 6 and an element portion 5 having a fuse function is provided. In general, the short-circuit phenomenon often occurs when strain is present or concentrated in a portion where the dielectric ceramic layer is thin.
FIG. 3 is a partial cross-sectional perspective view of the multilayer ceramic body having a fuse function according to the present invention. The element portion 5 having the fuse function has a thin dielectric ceramic layer, which is likely to cause a short circuit phenomenon, for the above-described reason. A portion, in other words, a multilayer capacitor portion having a large capacitance, or between the internal electrode layer 6 and the external electrode 7 of the multilayer ceramic capacitor.
【００１９】内部電極層６は、誘電体セラミック層上に
Ｎｉ、Ｃｕ、Ａｇ、ＡｇコートＣｕあるいはＡｇ−Ｐｄ
系等の電気抵抗の低い金属材料及び半導体等からなる導
体ペーストを印刷等の方法で塗布形成する。The internal electrode layer 6 is made of Ni, Cu, Ag, Ag-coated Cu or Ag-Pd on the dielectric ceramic layer.
A conductive paste made of a metal material such as a system having a low electric resistance and a semiconductor is applied and formed by a method such as printing.
【００２０】表１は、ヒューズ機能を持つ素子部５の狭
窄部８の線幅と内部電極層６の厚みを変化させたときの
ヒューズ機能を持つ素子部５の断面積を示した表であ
る。Table 1 is a table showing the cross-sectional area of the element portion 5 having the fuse function when the line width of the narrow portion 8 of the element portion 5 having the fuse function and the thickness of the internal electrode layer 6 are changed. .
【００２１】 [0021]
【００２２】表２は、各断面積のときの内部電極層６の
抵抗値を示した表である。Table 2 is a table showing the resistance of the internal electrode layer 6 at each sectional area.
【００２３】 [0023]
【００２４】表３は、ヒューズ機能を持つ素子部５が、
オープンモード及び１００ｋΩ以上の高抵抗化したもの
に●を付けたものである。表３に、Ａｇ−３０％Ｐｄペ
ーストを用いてヒューズ機能を持つ素子部５である狭窄
部８を設けて、人為的に内部電極層間を短絡させた状態
を形成し、電流を印加してヒューズ機能を持つ素子部５
が機能するかどうか確認した結果を示す。Table 3 shows that the element portion 5 having a fuse function is
In the open mode, the resistance increased to 100 kΩ or more is indicated by ●. In Table 3, a constricted portion 8, which is an element portion 5 having a fuse function, is provided by using an Ag-30% Pd paste to form a state in which the internal electrode layers are artificially short-circuited. Element part 5 with functions
Here is the result of checking whether or not works.
【００２５】 ●：溶段あるいは高抵抗化したことを示す [0025] ●: Indicates that the welding stage or resistance has been increased
【００２６】上記表１、表２、表３の結果より、内部電
極層の狭窄部において、狭窄部の断面積が、０.０００
１ｍｍ2〜０.００１ｍｍ2の範囲で 、抵抗値が１Ω以上
あれば、ヒュ−ズ機能を有していることがわかる。From the results shown in Tables 1, 2 and 3, the sectional area of the constricted portion of the internal electrode layer is 0.000.
In the range of 1mm 2 ~0.001mm 2, if the resistance value is more than 1 [Omega, fuse - it can be seen that a's function.
【００２７】図４は、内部電極層の狭窄部の断面積が
０.０００４ｍｍ2、内部電極１層当たりの抵抗値が２Ω
のヒューズ機能を持ち、３種類のコンデンサ部を共通外
部電極部で一体化した積層セラミックコンデンサの周波
数−インピーダンス特性を示す。FIG. 4 shows that the cross-sectional area of the constricted portion of the internal electrode layer is 0.0004 mm 2 and the resistance per internal electrode layer is 2Ω.
3 shows the frequency-impedance characteristics of a multilayer ceramic capacitor having the fuse function described above and integrating three types of capacitor sections with a common external electrode section.
【００２８】コンデンサのチップサイズはＬ３.２×Ｗ
１.６ｍｍで、誘電率εは１０００の材料を用いた。こ
こで、個々の積層コンデンサ部の等価回路定数は、コン
デンサ部１：Ｃ１＝０.０３μＦ、Ｌ１＝１.２ｎＨ、Ｒ
１＝１５０ｍΩ。コンデンサ部２：Ｃ２＝０.００４５
μＦ、Ｌ２＝１.３ｎＨ、Ｒ２＝３００ｍΩ。コンデン
サ部３：Ｃ３＝０.３８μＦ、Ｌ３＝１.０ｎＨ、Ｒ２＝
３０ｍΩ。The chip size of the capacitor is L3.2 × W
A material having a thickness of 1.6 mm and a dielectric constant ε of 1000 was used. Here, the equivalent circuit constants of the individual multilayer capacitor units are as follows: capacitor unit 1: C1 = 0.03 μF, L1 = 1.2 nH, R
1 = 150 mΩ. Capacitor part 2: C2 = 0.0045
μF, L2 = 1.3 nH, R2 = 300 mΩ. Capacitor section 3: C3 = 0.38 μF, L3 = 1.0 nH, R2 =
30 mΩ.
【００２９】この結果より、通常のコンデンサと比較し
て、高周波帯域において低インピーダンス及び低インダ
クタとなっており、良好な周波数特性が得られた。As a result, as compared with a normal capacitor, a low impedance and a low inductor were obtained in a high frequency band, and good frequency characteristics were obtained.
【００３０】[0030]
【発明の効果】以上、説明したように、本発明によれ
ば、積層セラミックコンデンサ部の内部電極層にヒュー
ズ機能を持つ素子部を設けることによって、何らかの原
因で内部電極層が短絡し、ヒューズ機能によって溶断し
ても、局所的なオープンにとどめられるので、インピー
ダンスの変化は小さく、周辺の電子回路の機能を大きく
損なうことのない積層セラミックコンデンサを提供する
ことができる。As described above, according to the present invention, by providing an element portion having a fuse function on the internal electrode layer of the multilayer ceramic capacitor portion, the internal electrode layer is short-circuited for some reason, and the fuse function is provided. Even if the fuse is blown, it can be kept locally open, so that a change in impedance is small and a multilayer ceramic capacitor which does not greatly impair the function of peripheral electronic circuits can be provided.
【図１】本発明の実施の形態による内部電極各層にヒュ
ーズ機能を持つ素子部を付与した積層セラミックコンデ
ンサの断面図。FIG. 1 is a sectional view of a multilayer ceramic capacitor according to an embodiment of the present invention, in which an element portion having a fuse function is provided to each layer of an internal electrode.
【図２】本発明の実施の形態による内部電極の一部の層
にヒューズ機能を持つ素子部を付与した積層セラミック
コンデンサの断面図。FIG. 2 is a cross-sectional view of the multilayer ceramic capacitor according to the embodiment of the present invention, in which an element portion having a fuse function is provided on a part of the internal electrodes.
【図３】本発明の実施に形態による積層セラミックコン
デンサにおいて、内部電極層のヒューズ機能を持つ素子
部を露出した切り欠き図。FIG. 3 is a cutaway view of the multilayer ceramic capacitor according to the embodiment of the present invention, in which an element portion having a fuse function of an internal electrode layer is exposed.
【図４】本発明の実施の形態における積層セラミックコ
ンデンサの周波数−インピーダンス特性を示す図。FIG. 4 is a diagram showing frequency-impedance characteristics of the multilayer ceramic capacitor according to the embodiment of the present invention.
１ 誘電体層の厚みが薄い積層セラミック体 ２ 誘電体層の厚みが中間の積層セラミック体 ３ 誘電体層の厚みが厚い積層セラミック体 ４ 保護層 ５ ヒューズ機能を持つ素子部 ６ 内部電極層 ７ 外部電極 ８ 狭窄部 DESCRIPTION OF SYMBOLS 1 Laminated ceramic body with a thin dielectric layer 2 Laminated ceramic body with an intermediate dielectric layer thickness 3 Laminated ceramic body with a thick dielectric layer 4 Protective layer 5 Element part having a fuse function 6 Internal electrode layer 7 External Electrode 8 Stenosis
Claims (5)
る内部電極層とを交互に複数回数積み重ねて形成する積
層セラミック体に外部電極を設けてなる積層セラミック
コンデンサであって、誘電体セラミック層の厚みの異な
った複数の積層セラミック体を積層して外部電極で一体
化すると共に、前記内部電極層にヒューズ機能をもつ素
子部を付与したことを特徴とする積層セラミックコンデ
ンサ。1. A multilayer ceramic capacitor comprising an external electrode provided on a multilayer ceramic body formed by alternately stacking a plurality of dielectric ceramic layers and internal electrode layers made of a low-resistance conductor a plurality of times. A multilayer ceramic capacitor, wherein a plurality of laminated ceramic bodies having different thicknesses are laminated and integrated by an external electrode, and an element portion having a fuse function is provided to the internal electrode layer.
て、ヒューズ機能を持つ素子部が各内部電極層に付与さ
れていることを特徴とする請求項１記載の積層セラミッ
クコンデンサ。2. The multilayer ceramic capacitor according to claim 1, wherein an element portion having a fuse function is provided to each internal electrode layer in the multilayer ceramic capacitor.
て、内部電極層について交互にヒューズ機能を持つ素子
部を付与したことを特徴とする請求項１記載の積層セラ
ミックコンデンサ。3. The multilayer ceramic capacitor according to claim 1, wherein said multilayer ceramic capacitor is provided with an element portion having a fuse function alternately for internal electrode layers.
て、内部電極層のヒューズ機能を持つ素子部は、内部電
極層の一部に狭窄部を設けることを特徴とする請求項１
ないし３のいずれかに記載の積層セラミックコンデン
サ。4. The multilayer ceramic capacitor according to claim 1, wherein the element portion having a fuse function of the internal electrode layer has a constriction in a part of the internal electrode layer.
4. The multilayer ceramic capacitor according to any one of claims 3 to 3.
て、内部電極層の狭窄部は、狭窄部の断面積が０.００
０１ｍｍ2〜０.００１ｍｍ2の範囲で、抵抗値が１Ω以
上であることを特徴とする請求項４記載の積層セラミッ
クコンデンサ。5. In the multilayer ceramic capacitor, the constriction of the internal electrode layer has a cross-sectional area of 0.00.
01Mm 2 in the range of ~0.001mm 2, multilayer ceramic capacitor according to claim 4, wherein the resistance value is equal to or not less than 1 [Omega.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10285938A JP2000100654A (en) | 1998-09-22 | 1998-09-22 | Stacked ceramic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10285938A JP2000100654A (en) | 1998-09-22 | 1998-09-22 | Stacked ceramic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000100654A true JP2000100654A (en) | 2000-04-07 |
Family
ID=17697938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10285938A Pending JP2000100654A (en) | 1998-09-22 | 1998-09-22 | Stacked ceramic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000100654A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007007654A1 (en) * | 2005-07-07 | 2007-01-18 | Toshiba Lighting & Technology Corporation | Discharge lamp operation device and bulb-shaped fluorescent lamp |
| JP2011049359A (en) * | 2009-08-27 | 2011-03-10 | Nec Tokin Corp | Three terminal-type capacitive element, and three terminal-type passive filter |
| WO2013088546A1 (en) * | 2011-12-15 | 2013-06-20 | 株式会社日立製作所 | Capacitor device and electrical equipment for housing capacitor device |
| CN103460315A (en) * | 2011-03-28 | 2013-12-18 | 株式会社村田制作所 | Electronic component |
| US20140240897A1 (en) * | 2013-02-26 | 2014-08-28 | Samsung Electro-Mechanics Co., Ltd. | Multilayer ceramic device |
| CN104112589A (en) * | 2013-04-22 | 2014-10-22 | 三星电机株式会社 | Multilayered ceramic capacitor and board for mounting the same |
| WO2016009852A1 (en) * | 2014-07-14 | 2016-01-21 | 株式会社村田製作所 | Laminated ceramic capacitor |
| US20200066457A1 (en) * | 2018-08-24 | 2020-02-27 | Apple Inc. | Self-fused capacitor |
-
1998
- 1998-09-22 JP JP10285938A patent/JP2000100654A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007007654A1 (en) * | 2005-07-07 | 2007-01-18 | Toshiba Lighting & Technology Corporation | Discharge lamp operation device and bulb-shaped fluorescent lamp |
| JP2011049359A (en) * | 2009-08-27 | 2011-03-10 | Nec Tokin Corp | Three terminal-type capacitive element, and three terminal-type passive filter |
| CN103460315A (en) * | 2011-03-28 | 2013-12-18 | 株式会社村田制作所 | Electronic component |
| JP5811174B2 (en) * | 2011-03-28 | 2015-11-11 | 株式会社村田製作所 | Electronic component and manufacturing method thereof |
| US9558886B2 (en) | 2011-03-28 | 2017-01-31 | Murata Manufacturing Co., Ltd. | Electronic component |
| WO2013088546A1 (en) * | 2011-12-15 | 2013-06-20 | 株式会社日立製作所 | Capacitor device and electrical equipment for housing capacitor device |
| US20140240897A1 (en) * | 2013-02-26 | 2014-08-28 | Samsung Electro-Mechanics Co., Ltd. | Multilayer ceramic device |
| CN104112589A (en) * | 2013-04-22 | 2014-10-22 | 三星电机株式会社 | Multilayered ceramic capacitor and board for mounting the same |
| CN104112589B (en) * | 2013-04-22 | 2018-03-16 | 三星电机株式会社 | Multilayer ceramic capacitor and its plate for installation |
| WO2016009852A1 (en) * | 2014-07-14 | 2016-01-21 | 株式会社村田製作所 | Laminated ceramic capacitor |
| US20200066457A1 (en) * | 2018-08-24 | 2020-02-27 | Apple Inc. | Self-fused capacitor |
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