200945382 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種共掇请、由„ ^ ,^ 模，慮波盗，待別是指一種使用 夕層共燒、多層疊合及半導體製 r . , 賵裂程所製作的共模濾波器。 【先前技術】 ❹ Ο 如圖1所示，-般常見的共模攄波器刚&含多 線層10、—具有多數第-圍繞段㈣的第_電感性佈線u ，及-具有多數第二圍繞段12G的第二電感性佈線12，該 等第-、二圍繞段uo、120是採用一對一交錯整合的方： 佈設在該等佈線層1G上，且各個上下錯_第一、二輯 段110、12G是以多數導孔13相連接，於是能形成兩個相互 輕合的電感線圈，藉以組成—個共模缝器，採取這種 結構製作時’該第-、二電感性佈線u、12所圍繞的圈數 偏低，又圍繞圈數是與線圈之間產生的互感量成正比，也 與線圈本身所產生的電感值成正比，因此當圍繞圈數偏低 時，就會限制該第一、二電感性佈線n、12的電感值，也 限制了阻隔雜訊的功效，於是導致該共模濾波器1〇〇的低 頻濾波效果不理想的情形。 【發明内容】 因此’本發明之目的’是在於提供一種可以大幅提高 各個電感性佈線的圍繞圈數，進而能提升濾波效果的共模 濾波器。 於是，本發明共模濾波器包含一基體、一第一電感性 佈線’及一第二電感性佈線。 5 200945382 ，及多數從 中間佈線層 該基體包括一起始佈線層、一終止佈線層 該起始佈線層沿一軸線排列到該終止佈線層的 該第-電感性佈線是從該起始佈線層開始沿著該轴線 以-距離該轴線的第-徑向距離圍繞到該終止佈線層，再 從該終止佈線層沿著該轴線以—大於該第—徑向距離之第 三徑向距離圍繞回到該起始佈線層，該第—電感性佈線包200945382 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a kind of pleading, by „^,^ modulo, and wave pirates, which means a kind of co-fired, multi-layered and semiconductor R. , common mode filter made by splitting process. [Prior Art] ❹ Ο As shown in Figure 1, the common common mode chopper just & contains multi-line layer 10, with a majority - The first inductive wiring u surrounding the segment (4), and the second inductive wiring 12 having a plurality of second surrounding segments 12G, the first and second surrounding segments uo, 120 are one-to-one interleaved integration: On the wiring layers 1G, and the upper and lower errors _ first and second segments 110 and 12G are connected by a plurality of via holes 13, so that two mutually inductive coils can be formed, thereby forming a common mode slit. When the structure is manufactured, the number of turns around the first and second inductive wires u and 12 is low, and the number of turns is proportional to the amount of mutual inductance generated between the coils, and is also generated by the coil itself. The inductance value is proportional, so when the number of turns is low, the first is limited. The inductance value of the two inductive wires n and 12 also limits the effectiveness of blocking the noise, so that the low-frequency filtering effect of the common mode filter 1〇〇 is not ideal. [Invention] Therefore, the object of the present invention is The invention provides a common mode filter capable of greatly improving the number of turns of each inductive wiring and thereby improving the filtering effect. Thus, the common mode filter of the present invention comprises a substrate, a first inductive wiring and a second Inductive wiring. 5200945382, and a plurality of intermediate wiring layers, the substrate includes a starting wiring layer, a termination wiring layer, and the first inductive wiring from which the starting wiring layer is arranged along an axis to the termination wiring layer is from The initial wiring layer begins to surround the termination wiring layer along the axis at a first-radial distance from the axis, and the termination wiring layer along the axis is greater than the first radial distance a three radial distance around the starting wiring layer, the first inductive wiring package
括多數分別形成於該起始佈線層、該等中間佈線層、該铁 止佈線層的第-圍繞段’及多數連接於兩相鄰之第一圍繞 段的第一連接段。 該第二電感性佈線是從該起始佈線層與該等中間佈線 層的任一者開始沿著該軸線以一介於該第一、三徑向距離 2二徑向距離圍繞到該終止佈線層，再從該終止佈線層 著i軸線以大於該第二徑向距離之第四徑向距離圍繞 回到該起始佈線層與該等中間料層的任—者，該第二電 感性佈線包括多數分別形成於該#中間佈線層、該終止佈 、-層的第—圍繞&，及多數連接於兩相鄰之第二圍繞段的 第一連接段。 y_本發明的有益效果在於：透過佈線時與該軸線不同的 '向距離叹汁’該第一、二電感性佈線就可以在已有的技 術與步驟下，使得圍繞該轴線的圈數成倍數增加，由於圍 繞圈數是與線圈之間產生的互感量成正比，也與線圈本身 生的電感值成正比，因此能在相巧趙積下提供比以往 結構更大的電感值，進而製作出體積小、成本低、渡波效 6 200945382 果佳的共模濾波器。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之數個較佳實施例的詳細說明中，將可 清楚的呈現。 在本發明被詳細描述前，要注意的是，以下的說明内 容中，類似的元件是以相同的編號來表示。 如圖2、3所示，本發明共模濾波器2〇〇的第一較佳實 施例包含一基體2〇、一第一電感性佈線3〇，及一第二電感 性佈線40〇 該基體20包括一起始佈線層21、一終止佈線層23, 沿一軸線Z排列到該終止佈線層Most of the first wiring segments are formed on the initial wiring layer, the intermediate wiring layers, the first surrounding segments of the iron-stopping wiring layer, and the first connecting segments that are connected to the two adjacent first surrounding segments. The second inductive wiring is wound from the starting wiring layer and the intermediate wiring layers along the axis to the termination wiring layer at a radial distance of two from the first and third radial distances And then, from the termination wiring layer, the i-axis is surrounded by any of the fourth radial distances greater than the second radial distance, and the second inductive wiring includes Most of the first intermediate segments are formed in the #intermediate wiring layer, the terminating cloth, the first layer around the layer, and the first connecting segment connected to the two adjacent second surrounding segments. Y_ The beneficial effect of the invention is that the first and second inductive wires which are different from the axis when passing through the wiring can be made in the prior art and the steps, so that the number of turns around the axis The multiple is increased. Since the number of turns is proportional to the mutual inductance generated between the coils and proportional to the inductance of the coil itself, it can provide a larger inductance value than the conventional structure. Produce a common mode filter with small size, low cost, and good performance. The above and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. Before the present invention is described in detail, it is to be noted that in the following description, similar elements are denoted by the same reference numerals. As shown in FIG. 2 and FIG. 3, the first preferred embodiment of the common mode filter 2A of the present invention comprises a substrate 2, a first inductive wiring 3, and a second inductive wiring 40. 20 includes an initial wiring layer 21 and a termination wiring layer 23, which are arranged along an axis Z to the termination wiring layer
及多數從該起始佈線層21 23的中間佈線層22，該JAnd a plurality of intermediate wiring layers 22 from the starting wiring layer 21 23, the J
接段32 〇 該第二電感性佈線40 40在本第一較佳實施例中是從該起 7 200945382 _ 始佈線層21的上一個中間佈線層22開始沿著該轴線z以 _ 一介於該第-、三徑向距離d1、们之第二徑向距離d2圍 繞到該終止佈線$ 23，再從該終止佈線$ 23沿著該轴線z 以一大於該第三徑向距離d3之第四徑向距離料圍繞回到 該起始佈線層21的上兩個中間佈線層22，該第二電感性佈 線40包括多數分別形成於該等中間佈線層22、該終止佈線 f 23的第二圍繞段41，及多數連接於兩相鄰之第二圍繞段 41的第二連接段42。 ❹ Μ等第-、二連接段32、42可由各類濕式之昼印製程 直接完成電連接或由乾式之填充金屬貫穿孔完成電連接。 該等第一、二圍繞段31、41在該等中間佈線層22上 是分別圍繞於該軸線Z，形成兩個位在同一半部的半圈，兩 個相鄰的中間佈線層22上的第一、二圍繞段31、41是分 別形成在該第一、二半部2〇1、202。 在本第一較佳實施例中，該等第一、二圍繞段31 ' 4ι ⑩ 在同一個中間佈線層22上是同樣位於該第一半部2〇1或該 第二半部202，該終止佈線層23上的第一、二圍繞段31、 41是分別圍繞於該轴線z三個半圈，且圍繞的方向是延續 於該終止佈線層23所連接之中間佈線層22上的第一、二 圍繞段31、41，簡單的說，該第一、二圍繞段31、41在該 終止佈線層23上是沿著最上方一個中間佈線層22的圍繞 方向繼續在該終止佈線層23圍繞三個半圈並改朝向該起始 佈線層21的方向圍繞。 藉此，透過佈線時與該軸線Z不同的徑向距離設計（ 200945382 ，該第一、二電感性佈線扣、4〇就可以 已有的技術與步驟下，使㈣繞帅線ζ的圈數成倍數 ::，由於圍繞圈數是與線圈之間產生的互感量成正比， …線圈本身所產生的電感值成正比，因此 同體積條件下提供比月此在相 捉伢比以彺結構更大的電感值，進而製作出 體積j《本低、滤波效果佳的共模遽波器細。 Ο ❹ 200 2 4所示’以下將更進—步說明本發明共模滤波器 的第二較佳實施例，該第二較佳實施例與上述該第一較 佳實㈣大致相同’其不同處在於，在圖2中該第一、二 圍繞段3卜41是同樣位於該第一半部2〇ι或該第二半部 2〇2,而實際在製造時，該第―、二電感性佈線30、40的 圍繞& 31、41也可以因著電氣特性的考量與製程 的不同，而將該第-、二圍繞段31、41分別佈設於該第一 、二半部2(U、2G2 ’則同樣能達到提高圍繞圈數、滤波效 果更優異、體積小、成本低的使用目的。 η圖5所不，值得一提的是該第一、二較佳實施例 中’該共模m 2GG還包括多數設置於該基體2G的第一 電極51與多數第二電極52，該第一、二電感性佈線％、 的的頭、尾兩端是分別連接於該等第一、二電極5ι、52， 藉以形成獨立製造的元件並提供與外部電路相連的介面。 ,惟以上所述者’僅為本發明之數個較佳實施例而已， 當不能以此限定本發明實施之範圍，即大凡依本發明申請 專利範圍及說明書内容所作之簡單的等效變化與修飾，皆 仍屬本發明專利涵蓋之範圍内。 9 200945382 【圖式簡單說明】 圖1是一透視圖，說明一般的共模濾波器結構； 圖2是一透視圖，說明本發明共模濾波器 實施例；妁第一較佳 圖3是一示意圖，說明上述該第一較佳實施例中 第—電感性佈線與一第二電感性佈線是以一第一 / 第三、第四徑向距離圍繞一軸線； Ο 圖4是一透視圖 實施例；及 說明本發明共⑽波㈣第二較佳 二較佳實施例中 二·電極相連接的 圖5是一示意圖，說明上述該第一 ’第一、二電感性佈線分別與多數第一 狀態。The second inductive wiring 40 40 in the first preferred embodiment is in the first preferred embodiment from the beginning of the last intermediate wiring layer 22 of the wiring layer 21 along the axis z. The first and third radial distances d1, the second radial distance d2, surround the termination wiring $23, and the termination wiring $23 along the axis z is greater than the third radial distance d3. The fourth radial distance is wrapped around the upper two intermediate wiring layers 22 of the starting wiring layer 21, and the second inductive wiring 40 includes a plurality of the plurality of intermediate wiring layers 22, the termination wiring f23, respectively. Two surround segments 41, and a plurality of second connecting segments 42 connected to two adjacent second surrounding segments 41. The first and second connecting sections 32 and 42 of the ❹ 可由 can be electrically connected by various wet type printing processes or by a dry filling metal through hole. The first and second surrounding segments 31, 41 are respectively surrounded by the axis Z on the intermediate wiring layers 22, forming two half-turns in the same half, on two adjacent intermediate wiring layers 22. The first and second surrounding segments 31, 41 are formed in the first and second halves 2, 1, respectively. In the first preferred embodiment, the first and second surrounding segments 31 ' 4 10 are also located on the same intermediate wiring layer 22 in the first half 2〇1 or the second half 202. The first and second surrounding segments 31, 41 on the termination wiring layer 23 are respectively three and a half turns around the axis z, and the surrounding direction is continued from the intermediate wiring layer 22 to which the termination wiring layer 23 is connected. One or two surrounding the segments 31, 41, simply speaking, the first and second surrounding segments 31, 41 continue on the termination wiring layer 23 along the surrounding direction of the uppermost intermediate wiring layer 22 at the termination wiring layer 23 It is surrounded by three half circles and redirected toward the starting wiring layer 21. Thereby, the radial distance is different from the axis Z when the wiring is transmitted (200945382, the first and second inductive wiring buckles, 4 〇 can be used in the existing techniques and steps, so that (4) the number of turns of the winding line Multiples::, since the number of turns is proportional to the amount of mutual inductance generated between the coils, ...the inductance value generated by the coil itself is proportional, so the ratio of the volume provided under the same volume is more than that of the structure. The large inductance value, and then the volume j "lower, good filtering effect of the common mode chopper is fine. Ο ❹ 200 2 4 shows 'the following will be more advanced step-by-step description of the second comparison of the common mode filter of the present invention In a preferred embodiment, the second preferred embodiment is substantially identical to the first preferred embodiment (4). The difference is that in FIG. 2, the first and second surrounding segments 3 are also located in the first half. 2〇ι or the second half 2〇2, and in actual manufacture, the surrounding & 31, 41 of the first and second inductive wirings 30, 40 may also be different in electrical characteristics and process. And the first and second surrounding segments 31, 41 are respectively arranged in the first and second halves 2 (U, 2G2) 'The same can achieve the purpose of improving the number of turns around, the filtering effect is more excellent, the volume is small, the cost is low. η Figure 5 is not, it is worth mentioning that in the first and second preferred embodiments, the common mode m The 2GG further includes a plurality of first electrodes 51 and a plurality of second electrodes 52 disposed on the base 2G. The first and second ends of the first and second inductive wires are connected to the first and second electrodes, respectively. And 52, thereby forming an independently manufactured component and providing an interface to an external circuit. However, the above description is only a few preferred embodiments of the present invention, and the scope of the present invention cannot be limited thereto. The simple equivalent changes and modifications made by the present invention in accordance with the scope of the invention and the contents of the specification are still within the scope of the invention. 9 200945382 [Simple description of the drawing] FIG. 1 is a perspective view showing a general FIG. 2 is a perspective view illustrating an embodiment of the common mode filter of the present invention; FIG. 2 is a schematic view showing the first inductive wiring and the first preferred embodiment of the present invention. second The inductive wiring is around an axis at a first/third, fourth radial distance; Ο Figure 4 is a perspective view embodiment; and the invention has a total (10) wave (four) second preferred two preferred embodiment Fig. 5, in which the electrodes are connected, is a schematic view showing the first 'first and second inductive wirings' and the first first state, respectively.
10 200945382 【主要元件符號說明】 200… 共模滤波益 40·.·.· •…第二電感性佈線 201… •…第一半部 41 ••… •…第二圍繞段 202… •…第二半部 42····· •…第二連接段 20···.· 基體 Z…… …·軸線 21 ••… ----起始佈線層 X…… •…梭切方向 22…… •…中間佈線層 dl ··... •…第一徑向距離 23…… •…終止佈線層 d2·...· •…第二徑向距離 30…… •…第一電感性佈線 d3••… •…第三徑向距離 31…… …·第一圍繞段 d4···.. …·第四徑向距離 32…… …·第一連接段 ❿ 1110 200945382 [Description of main component symbols] 200... Common mode filter benefit 40·.....•...Second inductive wiring 201... •...first half 41 ••... •...second surrounding segment 202... •... The second half 42·····•...the second connecting section 20···.· The base Z... ...·Axis 21 ••... ----Starting wiring layer X... •... Shuttle direction 22... ... •... intermediate wiring layer dl ··... •...first radial distance 23... •...terminating wiring layer d2·...·......second radial distance 30... •...first inductive wiring D3••... •...third radial distance 31...the first surrounding segment d4···.....the fourth radial distance 32...the first connecting segment ❿11