M422145 ’ 五、新型說明： 【新型所屬之技術領域】 本創作關於-種積層陶究電容器，尤指—種可 壓耐受程度的積層陶瓷電容器。 ' 【先前技術】 隨著電子產品的微型化，積層陶瓷電容器也朝著小型 φ 化與功能化發展。電容值的計算公式為：c= e (A/d)，其中 C為電容值、e為介電常數、A為有效反應電極面積及：為 f極間距（介電層厚度為達到高容值化目的，積層陶竟電 容之介電層厚纟d必須薄層化’同時元件之堆疊層數持續 增加，為積層陶瓷電容器結構之基本發展方向。 隨著堆疊層數的增加、内電極面積的擴張，電容器的 耐電壓性會隨之下降，當電容器在電路板（prjntedM422145 ′ V. New description: [New technical field] This creation is about a kind of laminated ceramic capacitor, especially a laminated ceramic capacitor with a pressure tolerance. [Prior Art] With the miniaturization of electronic products, multilayer ceramic capacitors have also evolved toward small size and functionalization. The capacitance value is calculated as: c = e (A/d), where C is the capacitance value, e is the dielectric constant, A is the effective reactive electrode area, and: is the f-pole pitch (the dielectric layer thickness is the high capacitance value). For the purpose of the purpose, the thickness of the dielectric layer of the laminated ceramic capacitor must be thinned. At the same time, the number of stacked layers of the component continues to increase, which is the basic development direction of the laminated ceramic capacitor structure. With the increase of the number of stacked layers, the area of the internal electrode Expansion, the withstand voltage of the capacitor will drop, when the capacitor is on the board (prjnted
Board，PCB)上使用時，會因為電壓或電流不穩定，超出電 • 容器的耐電範圍，導致元件燃燒或内部結構破損裂痕，進 而造成電容器喪失功能，甚至因燃燒造成周邊電路燒毁。 如中華民國專利丨319884「多層陶瓷電容器構件及其製 法」所揭露，請參考圖1〇所示，在電容器内部形成有遮護 極70、80 ’包含一對位在頂端的遮護電極7.0及一對位 '名底部的遮護電極8〇，其中各遮護電極7〇、8〇由外朝内 延伸並超越一相對應的外部電極終端，如此有助於抑制因 電壓或電流過大時，所產生的電弧效應，防止在空氣中產 生放電跳火（Arc)。 M422145When used on Board, PCB, it will be unstable due to voltage or current. It will exceed the electric resistance range of the battery. The components will burn or the internal structure will be damaged and cracked, which will cause the capacitor to lose its function and even burn the surrounding circuit due to combustion. As disclosed in the Chinese Patent No. 319884 "Multilayer Ceramic Capacitor Member and Its Manufacturing Method", as shown in FIG. 1A, a shield electrode 70, 80' is formed inside the capacitor, and includes a pair of shielding electrodes 7.0 at the top end and a pair of occlusion electrodes 8 底部 at the bottom of the name, wherein each of the visor electrodes 7 〇, 8 延伸 extends from the outside toward the inside and beyond a corresponding external electrode terminal, thus helping to suppress the voltage or current from being excessively large. The resulting arcing effect prevents discharge flash (Arc) in the air. M422145
方式’僅能對電 、高電流衝擊對 【新型内容】本創作之主要目的是提供一 積層陶瓷電容器， 巧疋杈供一種可提高電壓耐受程度的 減少高壓對電容器所造成的衝擊。 為達成前述目的，本創作積層陶瓷電容器包含有： 一積層本體，於其兩側分別設有一第一端電極及一第 二端電極，該第一端電極及第二端電極具有不同極性； 複數層第一内電極及複數層第二内電極，形成於該積 層本體内部，且各第 内電極及各第·一内電極分別對應電 性接觸該第一端電極及一第二端電極； 兩頂部遮護電極’設於接近該積層本體頂面的内部且 位於第一、第二内電極之上’兩頂部遮護電極分別連接該 第一端電極及第二端電極； 兩底部遮護電極，設於接近該積層本體底面的内部且 位於第一、第二内電極之下’兩底部遮護電極分別連接該 第一端電極及第二端電極； 一第一中央電極，設於該積層本體内部且位於第一及 第二内電極的相對外側，該第一中央電極與兩頂部遮護電 極具有耦合關係，且為一獨立電極而未與任何電極電性連 接； 一第二中央電極，設於該積層本體内部且位於第一及 第二内電極的相對外側，該第二中央電極與兩底部遮護電 4 M422145 極/、有耦&關係，且為一獨立電極而未與任何電極電性 接。： 由於在積層本體之頂、底部分別設有該第一中央電極 及第一中央電極作為緩衝，可使電場效應集中於元件中 央有助於抑制因電壓或電流過大時所產生的電弧效應， 璋斤声空氣中發生放電桃火，因此提高電容器之電壓耐受 程度。' 又 【實施方式】 請參考目1所示，㈣複數層陶竟基材土隹疊形成一積 層本體10，於其兩側分別設有一第一端電極2〇〇及一第二 端電極綱’該第—端電極200及第二端電極300具有不同 極性。在該積層本體1〇内部設有複數層的第一内電極2〇 及複數層的第二内電極3〇，且各第一内電極2〇及各第二内 電極30對應電性接觸該第一端電極2〇〇及第二端電極 300,該第一内電極2〇及第二内電極3〇交替堆疊，彼此間 有，分區域相互輕合，具有面狀的麵合關係。 在本創作中，積層本體1 〇内部設有一對頂部遮護電極 4ί、42及一對底部遮護電極51、52〇該成對的頂部遮護電 極#、42位在第一内電極20與第二内電極3〇的最外側並 接:近該積層本體10頂面的内部，兩頂部遮護電極41、42 分別連接該第一端電極200及第二端電極3〇〇,且向内延 伸而超過端電極2〇〇、細之終端。該成對的底部遮護電極 51、52則是接近該積層本體1 〇底面的内部，同樣分別連 接該第一端電極200及第二端電極300,且向内延伸而超 5 jj422145 過端電極200、3〇〇之終端。 該積層本體10内部進一步設有—獨纟㈣-中央電極 及獨立的第二中央電極62。該第-中央電極61位在 内電極2〇 ' 30的相對外側’且與兩頂部遮護電極41、42 具有輕合關係’但未與任何電極電性連接，本實施例中， 乂第中央電極61位於兩頂部遮護電極41、42之下，而 不在同平面。5亥第二中央電極62位在内電極2〇、3〇的 相對外側’且與兩底部遮護電極51、52具有輕合關係，但 未與任何電極電性連接，該第一中央電極62位於兩底部遮 護電極51、52之上，而不在同一平面。 本創作利用前述結構，當實際應用電容器時，因積層 本體1〇的上下最外層具有第一中央電極61及第二中央； 極62作為緩衝，可使電場效應集中於元件中央，得以有助 :抑制因電壓或電流過大時所產生的電弧效應，避免在空 氣中發生放電跳火，且可提高電容器之電壓耐受程度。 請參考圖2所示，本創作之第二實施例中，該第一中 央電極61位於頂部遮護電極μ、42 〜间且任丨5J —水平古 度，但並未與頂部遮護電極41、42及任何内電極2〇、二 連接；又該第二中央電㉟62設於兩相對的底部遮護電極 52《間且位在同一水平高度’但未與底部遮護電極 W、52及任何内電極20、30連接。 請參考圖3所示，該第-内電極2〇及第二内電極扣 亦可排列成具有線狀的耦合關係。即在相 貝女7 ^ 的十面上同時 :有—個第—内電極2G及-個第二内電極30,兩者之間未 相互接觸而以邊緣耦合，在不同的平 <"间 牙插設有間 6 接輕合電極35,各間接叙合電極35同時與局部.的第一内電 極20及局部的第二内電極30重疊。該第一内電極2〇及第 二内電極30依本實施例的排列方式，可使得電容器提供較 小=電容值，對於需要使用到低電容的電路，本實施例即 可符合電路設計要求。 請參考圖4所示，各内電極2〇、3〇之端部與相異極性 之端電極2GG、獅在平面上之相對距離為κ，例如圖. 不第内.電極20與第二端電極3QQ之相對最短距離為κ ; 而遮護電極41、42、51、52相對於積層本體1〇之上表面 2表面的距離為L(如圖1、2所示），本創作令兩者的關 係為K>L，如此可避免尖端放電所造成的㈣崩潰。再者， 本創作之第-内電⑮20或第二内電極3〇為矩形片狀電 極’而各内電極20、30之彎角可形成為圓弧形，相較於傳 =尖銳直角的内電極，本創作可以避免電子累積集中 ;尖端，防止產生尖端放電導致元件崩潰。 广參考圖5所示’本創作在第四實施例中，在積層本 :1〇内部相鄰堆疊同極性的内電極，因為内電極上的極性 /極相斥的效果’故可在積層本體1〇内部區分出不同的 ，合區:例如圖面上表示有同極性的兩個第一内電極如、 相郴堆且相隔距離為D，相對的，亦有兩個第二内電 目鄰堆疊且相隔距離^，其中—第一内電極 20: 2一弟二内電極3〇3位於相同平面，另-第-内電極 個叙I另一第二内電極3〇b位於另一平面，藉此可形成數 : E1、E2’使元件具有電容並聯的效果，其中，在 佳實她例中，内電極距離d>6〇⑽。本實施例將同極性 7 内電極相鄰堆疊的作法，亦可應用在圖3所示的結構卜 各耦合區E1、E2中的内電極堆疊層數可彼此不相同， 5層數較多者’表示總有效重疊面積較大 反之，輕合層數較少者，表示總有效重晶面二合值較；1， $面積較少，電容 =改變不_合區e1、EM部之輕合層數，亦可調 區心之耐電Μ、耐電流的能力。而區分為不暢合 耐麼效果2/可以分散電場效應所產生的熱能，有助於提升 在前面所述的各實施例中，對各個轉合區而 5第-内電極20及第二内電極 且不同輕合區° E域疋-致的’ 示m 的位置係上下對應。請參考圖6〜9所 、各個耦合區E1〜E3獨立來說，兮笛 ^ ^ ^ 术°兄 °玄第—内電極20及 第一内電極30彼此之間 及 且不同輕合區E1〜E36^u 们為非規則式的排列， L E3的位置可不必上下對應。 舉例而言，在圖6中上層的第一耦 區域較靠近第二端電極qnn 其有效耦合 合區日2的有效其有絲合區域小於第二轉 效搞合區域較靠近第：’而最下層的第三轉合區Η其有 的有㈣合區:端電極2〇。，且小於第二輕合區Η 或者是如圖7所；^ 内電極2〇、30在不❹第―輕合區E1内部的第-、第二 仕不R層之間即且 至下呈現漸縮狀的倒梯 /、 的耦合面積，由上 下一致對應的耦合，楚_ 一耦σ區E2則採上 卑二耦合區Ε3並第—咏 _ 20、30在不同層之間同樣具有内極 係呈現漸寬的正梯形輕合範圍。賴。面積’由上至下 M422145 【圖式簡單說明】 圖1 :本創作第一實施例之層狀結構示意圖。 圖2 :本創作第二實施例之層狀結構示意圖。 圖3 :本創作第三實施例之層狀結構示意圖。 亂4:本創作中内電極之平面示.意圖.。: 圖5 :本創作第四實施例之層狀結構示意圖。 圖6 :本創作第五實施例之層狀結構示意圖。 圖7 :本創作第六實施例之層狀結構示意圖。 圖8 :本創作第七實施例之層狀結構示意圖。 圖9 :本創作第八實施例之層狀結構示意圖。 圖1 0 :既有積層陶瓷電容器之層狀結構示意圖 【主要元件符號說明】 10積層本體 20、20a、20b第一内電極 . 30、30a、30b第二内電極 41、42頂部遮護電極51、52底部遮護電極 61第一中央電極 62第二中央電極 200第一端電極 300第二端電極 E1、E2、E3耦合區 70、80遮護電極Mode 'only for electric and high current impact pairs 【New content】 The main purpose of this creation is to provide a multilayer ceramic capacitor, which is used to reduce the impact of high voltage on the capacitor to improve the voltage tolerance. In order to achieve the foregoing objective, the present invention provides a laminated ceramic capacitor comprising: a laminated body having a first terminal electrode and a second terminal electrode disposed on opposite sides thereof, the first terminal electrode and the second terminal electrode having different polarities; The first inner electrode and the second inner electrode are formed inside the laminated body, and each of the inner electrodes and the first inner electrodes respectively electrically contact the first end electrode and the second end electrode; The top shielding electrode is disposed near the top surface of the laminated body and is located above the first and second internal electrodes. The two top shielding electrodes are respectively connected to the first end electrode and the second end electrode; the two bottom shielding electrodes Provided in the interior of the bottom surface of the laminated body and under the first and second internal electrodes, the two bottom shielding electrodes are respectively connected to the first end electrode and the second end electrode; a first central electrode is disposed on the laminated layer The first central electrode has a coupling relationship with the two top shielding electrodes, and is a separate electrode and is not electrically connected to any of the electrodes. a second central electrode is disposed inside the laminated body and located on opposite sides of the first and second internal electrodes, and the second central electrode is coupled to the two bottom shields 4 M422145 pole/, coupled & The individual electrodes are not electrically connected to any of the electrodes. : Since the first central electrode and the first central electrode are respectively provided as buffers on the top and bottom of the laminated body, the electric field effect can be concentrated in the center of the element to help suppress the arc effect caused by excessive voltage or current, 璋A sound of peach fire occurs in the air, so the voltage tolerance of the capacitor is increased. 'Alternatively】 Please refer to item 1. (4) A plurality of layers of ceramics are stacked on the substrate to form a laminated body 10, and a first end electrode 2〇〇 and a second end electrode are respectively disposed on both sides thereof. The first terminal electrode 200 and the second terminal electrode 300 have different polarities. A plurality of first inner electrodes 2 〇 and a plurality of second inner electrodes 3 设有 are disposed inside the laminated body 1 , and each of the first inner electrodes 2 〇 and the second inner electrodes 30 electrically contact the first The first end electrode 2 and the second end electrode 300 are alternately stacked with each other, and the sub-regions are lightly coupled to each other to have a planar surface-to-face relationship. In the present invention, the laminated body 1 is internally provided with a pair of top shield electrodes 4, 42 and a pair of bottom shield electrodes 51, 52. The pair of top shield electrodes #, 42 are located at the first inner electrode 20 and The outermost side of the second inner electrode 3〇 is connected: near the top surface of the laminated body 10, and the two top shielding electrodes 41 and 42 are respectively connected to the first end electrode 200 and the second end electrode 3〇〇, and are inward Extending beyond the terminal electrode 2, the thin terminal. The pair of bottom shielding electrodes 51 and 52 are close to the inner surface of the bottom surface of the laminated body 1 , and are also respectively connected to the first terminal electrode 200 and the second terminal electrode 300 and extend inwardly to exceed 5 jj422145. 200, 3 〇〇 terminal. The laminated body 10 is further provided with an inner (four)-center electrode and a separate second central electrode 62. The first central electrode 61 is located on the opposite outer side of the inner electrode 2〇'30 and has a light relationship with the two top shielding electrodes 41, 42 but is not electrically connected to any of the electrodes. In this embodiment, the first central portion The electrode 61 is located below the two top shield electrodes 41, 42 and is not in the same plane. The second central electrode 62 of the 5th is located on the opposite outer side of the inner electrodes 2〇, 3〇 and has a light relationship with the two bottom shield electrodes 51, 52, but is not electrically connected to any of the electrodes, the first central electrode 62 Located above the two bottom shield electrodes 51, 52, but not in the same plane. The present invention utilizes the foregoing structure. When the capacitor is actually applied, since the upper and lower outermost layers of the laminated body 1b have the first central electrode 61 and the second center; the pole 62 acts as a buffer to concentrate the electric field effect in the center of the element, which is helpful for: It suppresses the arcing effect caused by excessive voltage or current, avoids discharge sparking in the air, and improves the voltage tolerance of the capacitor. Referring to FIG. 2, in the second embodiment of the present invention, the first central electrode 61 is located between the top shield electrodes μ, 42 〜5J, and is not horizontally connected to the top shield electrode 41. 42 and any internal electrodes 2〇, 2 are connected; the second central electric 3562 is disposed between the two opposite bottom shielding electrodes 52 and at the same level but not with the bottom shielding electrodes W, 52 and any The inner electrodes 20, 30 are connected. Referring to FIG. 3, the first inner electrode 2 and the second inner electrode button may be arranged in a linear coupling relationship. That is, at the same time on the ten faces of the phase female 7 ^: there are - the first inner electrode 2G and the second second inner electrode 30, the two are not in contact with each other and are coupled by the edge, in different flat <" The intermediate teeth are interposed with a light-contacting electrode 35, and each of the indirect merging electrodes 35 simultaneously overlaps the partial first inner electrode 20 and the partial second inner electrode 30. According to the arrangement of the first inner electrode 2 and the second inner electrode 30, the capacitor can provide a smaller capacitor value. For a circuit requiring low capacitance, the embodiment can meet the circuit design requirements. Referring to FIG. 4, the end distance of each inner electrode 2〇, 3〇 and the opposite polarity end electrode 2GG, the lion in the plane is κ, for example, the figure. The electrode 20 and the second end The relative shortest distance of the electrode 3QQ is κ; and the distance between the shielding electrodes 41, 42, 51, 52 with respect to the surface of the upper surface 2 of the laminated body 1 is L (as shown in Figs. 1 and 2). The relationship is K > L, so as to avoid the (four) collapse caused by the tip discharge. Furthermore, the first inner electrode 1520 or the second inner electrode 3 本 of the present invention is a rectangular sheet electrode ' and the corners of the inner electrodes 20, 30 can be formed into a circular arc shape, compared to the inner corner of the transmission = sharp right angle The electrode, this creation can avoid the accumulation of electrons concentrated; the tip prevents the tip discharge from causing the component to collapse. Referring to FIG. 5, the present invention is in the fourth embodiment. In the laminate, the internal electrodes of the same polarity are stacked adjacent to each other, because the polarity/polar repulsion effect on the internal electrodes is 1 〇 internally distinguishes different, combined areas: for example, the two first internal electrodes of the same polarity, such as the phase stack, are separated by a distance D, and there are two second internal electrical neighbors. Stacked and separated by a distance ^, wherein - the first inner electrode 20: 2 the second inner electrode 3 〇 3 is located in the same plane, the other - the first inner electrode and the other second inner electrode 3 〇 b are located in another plane, Thereby, the number can be formed: E1, E2' make the element have the effect of parallel capacitance, wherein, in the case of Jiashi, the internal electrode distance d > 6 〇 (10). In this embodiment, the inner electrodes of the same polarity 7 are stacked adjacent to each other, and the number of inner electrode stack layers in the respective coupling regions E1 and E2 of the structure shown in FIG. 3 may be different from each other, and the number of the fifth layers is larger. 'Indicating that the total effective overlap area is larger, and the number of lightly bonded layers is smaller, indicating that the total effective recrystallized surface is smaller than the value; 1, the $ area is smaller, and the capacitance = the change is not the combination of the e1 and the EM parts. The number of layers can also adjust the ability of the zone to withstand electric power and current. However, it is distinguished that the thermal energy generated by the electric field effect can be dispersed, and the heat dissipation generated by the electric field effect can be improved, and in each of the foregoing embodiments, the fifth inner electrode 20 and the second inner portion are added to the respective transfer regions. The position of the electrode and the different light-combining zone ° E-domain-induced 'm' corresponds to the top and bottom. Please refer to FIG. 6 to FIG. 9 , and the respective coupling regions E1 to E3 independently, the flute and the inner electrode 20 and the first inner electrode 30 and the different light-combining regions E1 to E36^u are irregular arrangements, and the position of L E3 does not have to correspond to the top and bottom. For example, in FIG. 6, the first coupling region of the upper layer is closer to the second terminal electrode qnn, and the effective coupling region of the second coupling region is effective, and the wire meshing region is smaller than the second transition effect region. The third transition zone of the lower layer has a (four) junction: the terminal electrode 2〇. And less than the second light-combining zone Η or as shown in FIG. 7; ^ the inner electrodes 2〇, 30 are present between the first and second non-R layers inside the first-light junction area E1, and then The coupling area of the tapered inverted ladder/, is uniformly coupled by the upper and lower sides, and the Chu-coupled σ region E2 adopts the second coupling region Ε3 and the first 咏20, 30 have the same between different layers. The polar system presents a gradually widened trapezoidal light-weight range. Lai. Area 'from top to bottom M422145 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the layered structure of the first embodiment of the present invention. Fig. 2 is a schematic view showing the layered structure of the second embodiment of the present invention. Fig. 3 is a schematic view showing the layered structure of the third embodiment of the present invention. Chaos 4: The plane of the inner electrode in this creation shows. Intention. Fig. 5 is a schematic view showing the layered structure of the fourth embodiment of the present invention. Fig. 6 is a schematic view showing the layered structure of the fifth embodiment of the present invention. Fig. 7 is a schematic view showing the layered structure of the sixth embodiment of the present invention. Fig. 8 is a schematic view showing the layered structure of the seventh embodiment of the present invention. Fig. 9 is a schematic view showing the layered structure of the eighth embodiment of the present invention. Figure 10: Schematic diagram of a layered structure of a multilayer ceramic capacitor [Major component symbol description] 10 first layer body 20, 20a, 20b first internal electrode. 30, 30a, 30b second inner electrode 41, 42 top shield electrode 51 52 bottom shielding electrode 61 first central electrode 62 second central electrode 200 first end electrode 300 second end electrode E1, E2, E3 coupling region 70, 80 shielding electrode