TWI712220B - Trace anywhere interconnect - Google Patents
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Abstract
Description
本申請案係有關於一種用於產生不受習知的互連技術限制的互連之方法及結構。尤其,本發明係有關於在兩個或多個離散的接觸點之間形成一電互連機構,該些接觸點例如但不限於在兩個或多個平行的電路平面內的電路墊,其中電路係被形成在前述兩個或多個電路平面之間的三維空間中,以便於容許有兩個或多個電性裝置透過該互連裝置的電性耦接。 This application relates to a method and structure for generating interconnections that are not restricted by conventional interconnection technologies. In particular, the present invention relates to forming an electrical interconnection mechanism between two or more discrete contact points, such as but not limited to circuit pads in two or more parallel circuit planes, wherein The circuit is formed in the three-dimensional space between the aforementioned two or more circuit planes so as to allow two or more electrical devices to be electrically coupled through the interconnection device.
習知的互連技術係將藉由導電跡線的電路的繞線限制到x-y平面。這些跡線係接著在z軸上,透過垂直於該些跡線所形成且對準在該些跡線之上的孔洞(貫孔)來加以連接。這些貫孔係接著被塗覆或電鍍一金屬化,其係部分或完全地被填入,此係將該些跡線連接至被形成在該x-y平面之上及之下的電路。 The conventional interconnection technology restricts the winding of the circuit through the conductive trace to the x-y plane. These traces are then connected on the z-axis through holes (through holes) formed perpendicular to the traces and aligned above the traces. The through holes are then coated or plated with a metallization, which is partially or completely filled in, which connects the traces to the circuits formed above and below the x-y plane.
對於這些互連結構而言,在該結構的外部主要的表面的任一側上以及偶爾甚至是在該結構的較小的側或表面上具有一陣列的接觸墊是正常的。這些接觸墊係意謂要和在該些外表面上的電子構件電耦接。當在每一側上有大量的接觸墊或點待被電耦接時,內部的電路層會變成非常密集的,而且需要大量的繞線層。這些層的每一個傳統上係以兩層成對地加 以形成,其係被夾設在一介電片的兩側上。這些片係同時加以製造,接著和額外的介電片層一起接合,此係形成多層的結構。貫孔係接著穿過或是部分地穿過這些層堆疊而被形成及金屬化,此係做成所需的z軸互連。在將該些層接合在一起之前,部分或埋入式貫孔可以在每一個層對上加以形成及金屬化。 For these interconnect structures, it is normal to have an array of contact pads on either side of the outer major surface of the structure and occasionally even on the smaller side or surface of the structure. These contact pads are meant to be electrically coupled with electronic components on the outer surface. When there are a large number of contact pads or points to be electrically coupled on each side, the internal circuit layers become very dense, and a large number of winding layers are required. Each of these layers is traditionally added in two layers in pairs In order to form, it is sandwiched on both sides of a dielectric sheet. These sheets are manufactured at the same time and then joined together with additional layers of dielectric sheets to form a multilayer structure. Through holes are then formed and metallized through or partially through these layer stacks, which make the required z-axis interconnections. Before joining the layers together, partial or buried vias can be formed and metallized on each layer pair.
或者是,為了改善繞線密度,介電層以及電路層可以依序彼此堆疊地加以建立,其中盲貫孔只被形成在必要之處。此係消除對於佔據在該x-y平面中的在其中該些貫孔是不重要的層上的繞線空間之穿透貫孔的需求。此種到處貫孔的方法係大為改善繞線密度,但是卻遭受到依序地建構這些層的時間及人工的成本。 Or, in order to improve the winding density, the dielectric layer and the circuit layer can be built up on top of each other in sequence, and the blind through holes are formed only where necessary. This eliminates the need for penetrating through holes occupying the winding space in the x-y plane on the layer where the through holes are not important. This method of perforating everywhere greatly improves the winding density, but it suffers from the time and labor costs of constructing these layers sequentially.
本發明係提供一種其中一電互連機構係被形成之方法及結構,該電互連機構係具有在兩個或多個離散的接觸點之間複雜的連接,該些接觸點例如是但不限於在兩個或多個平行的電路平面之內的電路墊,其中電路係被形成在前述的兩個或多個電路平面之間的三維的空間中。以此種方式,本發明係提供兩個或多個電性裝置透過該互連裝置的電性耦接。 The present invention provides a method and structure in which an electrical interconnection mechanism is formed. The electrical interconnection mechanism has a complex connection between two or more discrete contact points, such as but not It is limited to the circuit pads in two or more parallel circuit planes, where the circuit is formed in the three-dimensional space between the aforementioned two or more circuit planes. In this way, the present invention provides the electrical coupling of two or more electrical devices through the interconnection device.
尤其,本發明係提供一種用於在該兩個或多個平行的電路平面上的離散的點之間形成三維地繞線的介電線之方法及結構。這些線可以被自由地繞線在三維的空間中,以在該兩個或多個平行的電路平面上的兩個任意界定的點之間產生最有效率的繞線。金屬化這些三維的介電線的外表面係電耦接該些離散的線至其個別的離散的接觸點。這些線中的兩個或多個可以是彼此緊密接觸的,此係將彼此電耦接並且電耦接至兩個或多個 離散的接觸墊。這些電耦接的接觸墊可以是在該結構的相反側上、或是在相同側上,並且該些形成的金屬化的線可以是源自於一側上並且終止在另一側上、或是源自並且終止於相同側。選配的是,在該些離散的線的金屬化的表面上形成一第二介電質的塗層至一特定的厚度,以便於近似一同軸線。這些經形成且金屬化的介電線可以透過該金屬化製程而被電耦接至該兩個或多個平面上的離散的金屬的電路、或是該些離散的平行的電路可以被形成為該些形成的介電線的一整體的部分,並且接著和該些介電線一起被金屬化。本發明的其它實施例及變化係在以下加以描述。 In particular, the present invention provides a method and structure for forming a three-dimensionally wound dielectric wire between discrete points on the two or more parallel circuit planes. These wires can be wound freely in a three-dimensional space to produce the most efficient winding between two arbitrarily defined points on the two or more parallel circuit planes. The outer surfaces of these three-dimensional dielectric wires are metalized to electrically couple the discrete wires to their individual discrete contact points. Two or more of these lines can be in close contact with each other, this system will be electrically coupled to each other and electrically coupled to two or more Discrete contact pads. The electrically coupled contact pads can be on the opposite side of the structure or on the same side, and the formed metallized lines can originate on one side and terminate on the other side, or It originates from and ends on the same side. What is optional is to form a second dielectric coating to a specific thickness on the metalized surfaces of the discrete wires so as to approximate the coaxial line. The formed and metalized dielectric wires can be electrically coupled to the discrete metal circuits on the two or more planes through the metalization process, or the discrete parallel circuits can be formed as the These are formed as an integral part of the dielectric wires, and then are metalized together with the dielectric wires. Other embodiments and variations of the present invention are described below.
1‧‧‧互連(電互連機構) 1.‧‧Interconnection (electrical interconnection mechanism)
3‧‧‧金屬化(金屬化的介電質) 3‧‧‧Metalization (Metalized Dielectric)
3a‧‧‧第二金屬化的塗層 3a‧‧‧Second metalized coating
3b‧‧‧固體的金屬線 3b‧‧‧Solid metal wire
3c‧‧‧金屬化的塗層 3c‧‧‧Metalized coating
5‧‧‧互連裝置(電互連機構、結構) 5‧‧‧Interconnection device (electrical interconnection mechanism, structure)
6‧‧‧信號線(電路、介電線) 6‧‧‧Signal wire (circuit, dielectric wire)
6a‧‧‧第二介電質的塗層 6a‧‧‧Second dielectric coating
6b‧‧‧介電質的塗層 6b‧‧‧Dielectric coating
7‧‧‧電路平面 7‧‧‧Circuit plane
7a‧‧‧非共面的表面 7a‧‧‧Non-coplanar surface
8‧‧‧電路(電路元件、信號墊、電性裝置) 8‧‧‧Circuits (circuit components, signal pads, electrical devices)
8a‧‧‧接地墊 8a‧‧‧Grounding pad
8c‧‧‧電源墊 8c‧‧‧Power Pad
10‧‧‧接觸點(電路元件) 10‧‧‧Contact points (circuit components)
10a‧‧‧電路墊(接觸墊) 10a‧‧‧Circuit pad (contact pad)
14‧‧‧介電質(填充材料) 14‧‧‧Dielectric (filling material)
15‧‧‧介電壁(平面) 15‧‧‧Dielectric wall (flat)
16‧‧‧剛性主體 16‧‧‧rigid body
17a‧‧‧支架(介電塊) 17a‧‧‧Support (dielectric block)
17b‧‧‧非導電的介電支架 17b‧‧‧Non-conductive dielectric support
19‧‧‧彈性體 19‧‧‧Elastomer
21‧‧‧貫穿 21‧‧‧through
22‧‧‧空氣介電質 22‧‧‧Air dielectric
23‧‧‧電子構件 23‧‧‧Electronic components
24‧‧‧端子點 24‧‧‧Terminal point
25‧‧‧杯形 25‧‧‧Cup
圖1a係展示本發明的一第一實施例的立體圖;圖1b是其中加入構件或電性裝置的圖1a的截面圖;圖2a-2c是圖1a的本發明的三個額外的實施例的截面圖,其係具有用於該些介電線及接觸點之金屬化的外層;圖3a-3d係展示圖1a的介電線的替代實施例;圖4是本發明的另一實施例;圖5a及5b係展示本發明的替代實施例;圖6a-6c係展示本發明的三個額外的實施例;圖7a係展示本發明的另一實施例,其中本發明係具有一被形成在兩個或多個電路平面之間並且被填入一介電質的剛性主體,其中該填充材料係延伸至該些電路元件的頂端;圖7b係展示本發明的另一實施例,其中本發明係具有一被形成在兩個
或多個電路平面之間並且被填入一介電質的剛性主體,其中該填充材料係延伸至該些電路元件的底部;圖8是本發明的另一實施例,其中本發明的互連的電路平面中之一係作用為一用於藉由該些形成的線連接的下一個依序堆積的平面之平面;圖9是本發明的另一實施例,其係展示一非共平面的互連;圖10是本發明的另一實施例,其中環氧樹脂支架(scaffolding)係維持在每一個電路元件的X軸與Y軸以及z軸位置上的對準;圖11a是本發明的另一實施例,其中該互連係被設置有一介電質的支架、介電柱或是一介電塊,其係具有用於該些線的穿過的貫穿;圖11b是本發明的另一實施例,其中該互連係被設置有一介電質的支架、介電柱或是一介電塊,其係具有用於該些線的穿過的貫穿,並且其係展示該互連結構當被填入一種彈性體的材料時,具有用於該些線的穿過的貫穿之介電質的支架、介電柱或是一介電塊係提供該互連結構的一固定的壓縮止擋;圖12a、12b及12c係展示本發明的替代實施例,其中:圖12a係展示本發明的非導電的介電支架的格子結構,其係具有突出的電路元件;圖12b係展示本發明的非導電的介電支架的格子結構,其係具有一空氣介電質;圖12c係展示本發明的非導電的介電支架的格子結構,其係具有齊平的電路元件;圖13係展示本發明的另一實施例,其係用於將一例如但不限於一電阻
器、電容器或電感器的電子構件23的兩個或多個端子點附加及電耦接至該些形成的線以及該些對應的平面7之對應的電路元件10,其中每一個點將耦接至其在該互連結構中之對應指定的電源、接地、或是信號線6及/或電路元件10。
Fig. 1a is a perspective view showing a first embodiment of the present invention; Fig. 1b is a cross-sectional view of Fig. 1a in which components or electrical devices are added; Figs. 2a-2c are three additional embodiments of the present invention of Fig. 1a A cross-sectional view with a metalized outer layer for the dielectric wires and contact points; Figures 3a-3d show alternative embodiments of the dielectric wires of Figure 1a; Figure 4 is another embodiment of the invention; Figure 5a And 5b show alternative embodiments of the present invention; Figures 6a-6c show three additional embodiments of the present invention; Figure 7a shows another embodiment of the present invention, in which the present invention has one formed in two Or between multiple circuit planes and filled with a dielectric rigid body, wherein the filling material extends to the top of the circuit elements; FIG. 7b shows another embodiment of the present invention, wherein the present invention has One is formed in two
Or between multiple circuit planes and filled with a dielectric rigid body, wherein the filling material extends to the bottom of the circuit elements; FIG. 8 is another embodiment of the present invention, wherein the interconnection of the present invention One of the circuit planes is used as a plane for the next sequentially stacked planes connected by the lines formed; Figure 9 is another embodiment of the present invention, which shows a non-coplanar Interconnection; Figure 10 is another embodiment of the present invention, in which the epoxy scaffolding (scaffolding) is maintained in the alignment of the X-axis, Y-axis and z-axis position of each circuit element; Figure 11a is the present invention In another embodiment, the interconnection system is provided with a dielectric support, a dielectric pillar, or a dielectric block, which has penetrations for the passage of the wires; Figure 11b is another embodiment of the present invention For example, the interconnection system is provided with a dielectric support, a dielectric pillar, or a dielectric block, which has penetrations for the passage of the lines, and it shows that the interconnection structure is filled in When an elastomeric material is used, there is a dielectric support, a dielectric column or a dielectric block for the penetration of the wires to provide a fixed compression stop for the interconnection structure; Figure 12a, 12b and 12c show alternative embodiments of the present invention, in which: Figure 12a shows the grid structure of the non-conductive dielectric support of the present invention, which has protruding circuit elements; Figure 12b shows the non-conductive dielectric of the present invention The lattice structure of the electric support, which has an air dielectric; Figure 12c shows the lattice structure of the non-conductive dielectric support of the present invention, which has flush circuit elements; Figure 13 shows another of the present invention Embodiment, which is used to connect a resistor such as but not limited to
Two or more terminal points of the
圖14是本發明的另一實施例,其中該些線6係延伸超出該互連1的剛性主體,其係具有有助於彎曲的彈簧形狀,例如但不限於線圈、懸臂、S形,其係具有有助於接觸各種形狀的電性裝置的端點,其例如是但不限於尖點、冠狀尖端或是杯形,其係作用為耦接兩個非共面的電性裝置的一柔性的互連。
Figure 14 is another embodiment of the present invention, in which the
現在參照圖1a-14的圖式,圖1a係展示本發明的一第一實施例,其中一電互連機構5係形成在兩個或多個平行的電路平面7之內的兩個或多個離散的接觸點10(其例如但不限於電路墊10a(圖1b)、或是如同在圖3a-3d中所示的離散的平行的電路8、以及如同在圖4及圖13中所示的信號墊8、電源墊8c及接地墊8a,其係類似於如同在圖1b中所示的離散的電路元件8以及電路墊10a)之間的複雜的連接,其中電路6係被形成在前述的兩個或多個電路平面7之間的三維的空間中,以便於透過該互連裝置5來提供圖1b的兩個或多個電性裝置8的電性耦接。
Referring now to the drawings of Figs. 1a-14, Fig. 1a shows a first embodiment of the present invention, in which an
如同在圖1a中所示,三維繞線的介電線6係被形成在該兩個或多個平行的電路平面7上的離散的點10之間。這些線6可以在三維的空間中被自由地繞線,以在該兩個或多個平行的電路平面7上的兩個任意界定的點10之間產生最有效率的繞線。
As shown in FIG. 1a, three-dimensionally
在將該些離散的線6電耦接至其個別的離散的接觸點10之前,這些三維的介電線6的外表面應該被金屬化3(參見圖2)。選配的是,該些三維的介電線6(圖2)可以是具有一選配的介電質的塗層6b(圖6b)以及一在該介電質上的選配的金屬化的塗層3c(圖6c)之固體的金屬線3b(圖6a)、或者可以是具有一第二介電質的塗層6a(圖3c)的一金屬化的介電質3(圖3d)、或是亦可包含一第二介電質的塗層6a(圖3b)以及一第二金屬化的塗層3a(圖3b)。這些線6中的兩個或多個(圖2c)可被設置成彼此緊密接觸的,其係將彼此以及兩個或多個離散的接觸墊10a(圖2c)電耦接。這些電耦接的接觸墊10a可以是在該結構5(圖1a)的相反側上(圖2a)、或是在相同側上(圖2b)。選配的是,一第二介電質的塗層6a可被形成在該些離散的線6的金屬化的表面上至一特定的厚度,以便於近似一同軸線(參見圖3a-3b)。這些經形成且金屬化的介電線可以如同在(圖3c)中的透過該金屬化製程而被電耦接至在該兩個或多個平面7上的離散的金屬的電路、或者是該些離散的平行的電路8(圖3d)可被形成為該些形成的介電線6的一整體的部分,並且接著和該些介電線6一起被金屬化(參見圖3d)。
Before electrically coupling the
在針對於該些線6的選配地形成的第二介電質的塗層6a及金屬化3a的實施例中,在該些塗覆後的線6上的第二金屬化3a係被限制為剛好不夠接觸到在任一平面7上的離散的電路元件(圖3a)。此金屬化應該從該些離散的電路元件凹陷在1μm至50μm的範圍中(見於本發明的圖3a的實施例)。
In the embodiment of the second
在本發明的另一實施例中,在該些形成的介電線上的第二金屬化塗層及/或第二介電層係和彼此緊密接觸,其係將該外部的金屬化彼此 電耦接,並且耦接至在該些外表面電路平面上的一或多個點。此將會具有提供接地屏蔽及/或同軸線的效果(參見圖4)。 In another embodiment of the present invention, the second metallization coating and/or the second dielectric layer on the formed dielectric wires are in close contact with each other, and the external metallizations are in close contact with each other. Electrically coupled, and coupled to one or more points on the outer surface circuit plane. This will have the effect of providing ground shielding and/or coaxial lines (see Figure 4).
替代被形成在該些離散的電路線6的周圍的接地屏蔽的是,一介電壁15或是平面15可以替代地在該結構中,在該z軸上或是垂直地加以形成,被轉置(transposed)在該些外表面電路平面7之間,在端點是電耦接至一或兩個平面上的離散的電路圖案8、8a(圖5a)下被金屬化。將這些垂直的平面連結到接地8a將會提供相鄰繞線的電路線的屏蔽、以及控制這些線的阻抗的能力,即如同在圖5a及5b中所示者。
Instead of the ground shield formed around the
圖7a及7b係展示兩個實施例,其中一剛性主體16係被形成在這兩個或多個電路平面7之間,其係藉由利用一例如但不限於環氧樹脂的介電質14來填入在該些平面之間的區域。此填充材料14可以延伸至該電路元件的底部(參見圖7b),此係使得該元件是在該填充介電質之上的、或是其可以延伸至該電路元件的頂端(參見圖7a),此係使得該元件與該填充材料齊平的。
Figures 7a and 7b show two embodiments, in which a
重覆先前敘述的實施例之先前敘述的製程中的一或多個,其中先前形成的互連1的電路平面7中之一是作用為用於藉由這些形成的線6連接的下一個依序形成的堆積的電路平面7的平面中之一(參見圖8的實施例)。
Repeat one or more of the previously described process of the previously described embodiment, wherein one of the circuit planes 7 of the previously formed interconnection 1 is used for the next connection of the
圖9是展示本發明的另一實施例,其中並非是利用例如是環氧樹脂14的剛性材料來填充前述的互連機構1,而是該互連結構1係被填入一種例如是彈性體19的柔性材料,以維持該些三維的線6以及電路端點至其所要的位置的對準,並且容許有z軸的柔性,以便於容許兩個打算藉
由該電互連機構1耦接的非共面的表面7a的電性耦接。
FIG. 9 shows another embodiment of the present invention. Instead of using a rigid material such as
圖10係展示本發明的另一實施例,其中並非是利用一環氧樹脂來填充該互連機構的整個內部的區域,而是利用最小的例如是一環氧樹脂的材料量來形成一支架17a,其係緊密接觸在該些平面的每一個上的電路元件的每一個,被轉置在兩個電路平面之間,其係維持在每一個平面之間的z軸間隔以及該些電路元件的每一個的x-y位置。此支架結構將會提供該互連1一種剛性結構,同時將空氣維持在該些形成的電路線的周圍。
FIG. 10 shows another embodiment of the present invention, in which instead of using an epoxy resin to fill the entire internal area of the interconnection mechanism, a minimum amount of material such as an epoxy resin is used to form a
圖11a係展示本發明的另一實施例,其中一介電質的支架、介電柱或是一固體的介電塊17a是在該互連的周圍。圖11b係展示本發明的一類似的實施例,但是其係具有被設置以允許該些線6的進入的貫穿21之介電質的支架、介電柱或是一固體的介電塊。當結合一填充彈性體的材料而被使用時,該介電結構係提供該互連結構1的一固定的壓縮止擋,以避免由於過度壓縮而損壞到該些線6(圖11b)。
FIG. 11a shows another embodiment of the present invention, in which a dielectric support, a dielectric pillar, or a solid
設計該些三維地形成的前述的線的自由流動,以具有例如但不限於線圈、懸臂及S形的形狀,以提供類似彈簧的特徵以容許有該些線的柔性,同時抵抗在該金屬及/或介電質中的應力破裂(參見圖1a)。 The free flow of the aforementioned three-dimensionally formed wires is designed to have shapes such as but not limited to coils, cantilevers and S-shapes to provide spring-like features to allow the flexibility of these wires while resisting the metal and / Or stress cracks in the dielectric (see Figure 1a).
圖12a係展示本發明的另一實施例,其中被轉置在該兩個電路平面7之間的非導電的介電支架17b的一格子結構係被設置,該格子結構係緊密接觸在該些電路平面7之內的電路元件,其係提供該些個別的接觸點或電路元件10在該些電路平面7之內的對準,並且提供剛性給整個結構1、或是容許有該整個結構在該z軸上的一些柔性,同時其亦選配地容許空氣介電質22在前述的線的周圍(參見圖12b)。圖12a係展示具有電路元件在
該介電質之上的實施例,並且圖12c係展示具有齊平的電路元件之實施例。該支架可以是具有機械工程技術中已知的不同的結構,以提供上述所要的性質。
Fig. 12a shows another embodiment of the present invention, in which a lattice structure of the
圖13係展示將一例如但不限於一電阻器、電容器或電感器的電子構件23的兩個或多個端子點24附加及電耦接至該些形成的線以及該些對應的平面7之對應的電路元件。每一個點係耦接至其在該互連結構1中之對應指定的電源、接地、或是信號線6及/或電路元件10。以此種方式,電容、電阻、電感、或是任何其它的電子功能係被提供至該互連1所欲耦接到的電性裝置的點(見於圖13)。
FIG. 13 shows the attachment and electrical coupling of two or more terminal points 24 of an
圖14係展示本發明的另一實施例,其中該些線6係延伸超出該互連1的剛性主體,其係具有例如但不限於線圈、懸臂及S形的形狀,以提供類似彈簧的特徵以容許有該些線的柔性,同時抵抗在該金屬及/或介電質中的應力破裂、以及有助於接觸各種形狀的電性裝置的端點,其例如是但不限於尖點、冠狀尖端或是杯形25,其係作用為耦接兩個非共面的電性裝置的一柔性的互連。其係提供在一整合的結構中的間距轉換及接腳重新對映、以及柔性的探測之能力。
Fig. 14 shows another embodiment of the present invention, in which the
再者,本發明的前述實施例的每一個都可以利用一或多個矽晶圓IC來加以建構,此係產生相互連接該兩個或多個IC的多晶片模組,其中一矽層是該基底電路平面。 Furthermore, each of the foregoing embodiments of the present invention can be constructed using one or more silicon wafer ICs, which generates a multi-chip module interconnecting the two or more ICs, in which a silicon layer is The substrate circuit plane.
再者,本發明的前述實施例的每一個都可以利用一或多個矽晶圓IC來加以建構,此係產生用於該IC的重分佈封裝。 Furthermore, each of the foregoing embodiments of the present invention can be constructed using one or more silicon wafer ICs, which creates a redistribution package for the IC.
再者,本發明的前述實施例的每一個都可以被建構在一撓性 的電路基底上。 Furthermore, each of the foregoing embodiments of the present invention can be constructed in a flexible On the circuit substrate.
用於上述實施例的結構之方法係如下:在本發明的一種具有介電核心線的無論何處的跡線之互連的情形中,開始點是具有一平坦載體的玻璃、陶瓷、或是某種其它平滑且平坦的材料,例如是但不限於平滑的金屬塊。接著,吾人應該利用一種例如但不限於黏著劑或蠟的適當的接合材料來暫時接合一片較佳的是Cu的金屬箔至該平坦的材料載體,以保持該Cu為平坦的。此箔的厚度應該是在10μm到35μm的範圍中,但是並不限於該範圍。接著,在該Cu箔的頂端上,利用在此項技術中已知的市售的3D列印技術,以形成附接至該Cu箔的介電線,其係從在該箔上的預設的位置,在該z軸上生長到在自由空間中的預設的位置。該箔可以透過微蝕刻的電漿或是此項技術中已知的其它的表面處理來加以處理,以提升該些介電線的黏著。這些線在直徑上通常將會是在1μm到50μm的範圍中。這些線將會被建構到高於所計畫的互連機構的通常從100μm到0.200"厚的整體高度一大約25μm到100μm的z軸高度。 The method used for the structure of the above embodiment is as follows: In the case of the interconnection of traces anywhere with a dielectric core line according to the present invention, the starting point is glass, ceramic, or glass with a flat carrier Some other smooth and flat material, such as but not limited to a smooth metal block. Next, we should use a suitable bonding material such as but not limited to adhesive or wax to temporarily bond a piece of metal foil, preferably Cu, to the flat material carrier to keep the Cu flat. The thickness of this foil should be in the range of 10 μm to 35 μm, but is not limited to this range. Then, on the top of the Cu foil, a commercially available 3D printing technology known in the art is used to form a dielectric wire attached to the Cu foil, which is derived from a preset on the foil The position, which grows to a preset position in free space on the z-axis. The foil can be treated with micro-etched plasma or other surface treatments known in the art to improve the adhesion of the dielectric wires. These wires will generally be in the range of 1 μm to 50 μm in diameter. These lines will be constructed to a z-axis height of approximately 25 μm to 100 μm higher than the overall height of the planned interconnection mechanism, which is usually from 100 μm to 0.200" thick.
接著,從該Cu片延伸的自由形成的線係利用電鍍、無電的電鍍、化學氣相沉積、濺鍍塗覆、或是此項技術中已知的任何其它技術而被金屬化。此金屬化的厚度通常將會是在1μm到25μm的範圍中。此金屬化實際上將會塗覆該些介電線以及該基底箔的露出的表面區域,此係使得該基底箔以及該些經塗覆的線變成電耦接的。 Then, the freely formed wires extending from the Cu sheet are metalized by electroplating, electroless electroplating, chemical vapor deposition, sputtering coating, or any other technique known in the art. The thickness of this metallization will generally be in the range of 1 μm to 25 μm. This metallization will actually coat the dielectric wires and the exposed surface area of the base foil, which makes the base foil and the coated wires electrically coupled.
選配的是,該些金屬化的介電線可以經由一浸漬操作、矽化學氣相沉積(SCVD)、二氧化矽脈衝層沉積(PLD)、二氧化鈦原子層沉積(ALD)、或是此項技術中已知的其它技術,而被再次塗覆一介電質。在此製 程期間,該基底箔金屬化的頂端側也可被塗覆,此係將其與進一步的製程電性隔離。 Optionally, these metalized dielectric wires can be subjected to a dipping operation, silicon chemical vapor deposition (SCVD), silicon dioxide pulsed layer deposition (PLD), titanium dioxide atomic layer deposition (ALD), or this technology Other techniques known in, and are again coated with a dielectric. In this system During the process, the metalized top side of the base foil can also be coated, which electrically isolates it from further processes.
該些塗覆後的線係接著(選配地)經由先前敘述的技術而被金屬化。此金屬化將會有將該些形成的線的全部表面短路在一起的效果。將此金屬化連結到一或多個接地線或是外部的電路層實際上係產生用於所有的線的接地屏蔽,並且近似用於所有的信號線的同軸線。耦接此接地的金屬化可以在該互連最終耦接兩個或多個電子裝置時,透過從被設計來接地的線或是基底銅的區域,經由雷射剝蝕、研磨或是此項技術中已知的某種其它技術來選擇性的移除外部的介電質塗層而被達成。 The coated wires are then (optionally) metalized using the technique described previously. This metallization will have the effect of short-circuiting all the surfaces of the lines formed. Connecting this metallization to one or more ground wires or external circuit layers actually creates a ground shield for all wires and approximately coaxial wires for all signal wires. The metallization of the coupling to the ground can be achieved by laser ablation, grinding, or this technology when the interconnect is finally coupled to two or more electronic devices, from the wire or the area of the substrate copper that is designed to be grounded Some other technology is known in the paper to selectively remove the external dielectric coating.
既然該些線在具有或是不具有一第二介電質以及第二金屬化下加以形成,該結構可以經由一模製操作(此項技術中通常已知的)而被填入一例如但不限於環氧樹脂的介電質,其係將該環氧樹脂固化成為一剛性基板。將會最佳的是將該環氧樹脂包覆模製超出該些形成的線的頂端端點約25μm-100μm。此係允許有用於一種經由研磨、砂磨、研光、或是在此項技術中已知的其它技術的平坦化製程之足夠的材料。 Since the lines are formed with or without a second dielectric substance and a second metallization, the structure can be filled with an example of but not limited by a molding operation (commonly known in the art). It is not limited to the dielectric material of epoxy resin, and it cures the epoxy resin into a rigid substrate. It would be best to overmold the epoxy resin by about 25 μm-100 μm beyond the top end of the formed lines. This system allows sufficient materials to be used in a planarization process by grinding, sanding, polishing, or other techniques known in the art.
在該些線具有一第二介電質以及第二金屬化的實施例中,該些線的頂端尖端可被塗覆一例如是蠟或是一臨時的聚合物之臨時的塗層,以避免金屬化(通常)在該第二介電層上形成最後的25μm到100μm。 In the embodiments where the wires have a second dielectric and a second metallization, the top tips of the wires can be coated with a temporary coating such as wax or a temporary polymer to avoid Metallization (usually) forms the final 25 μm to 100 μm on this second dielectric layer.
平坦化亦露出該些金屬化的線的頂端,此係提供在將一第二電路層電耦接至該些線以及該基底箔時,建構該電路層的機會。若該些塗覆後的線的尖端已經免於次要的金屬化,則仔細地控制該互連基板的在該z軸上的平坦化將會露出該形成的線的第一金屬化的層,此係在不耦接該形 成的線的前述選配的第二金屬化至該第二電路平面層之下,將其露出以電耦接至前述第二電路平面的形成。 The planarization also exposes the tops of the metalized lines, which provides an opportunity to construct the circuit layer when electrically coupling a second circuit layer to the lines and the base foil. If the tips of the coated wires are already free from secondary metallization, careful control of the planarization of the interconnect substrate on the z-axis will expose the first metallized layer of the formed wire , This is not coupled to the shape The aforementioned optional second metallization of the formed line is under the second circuit plane layer and exposed to be electrically coupled to the formation of the aforementioned second circuit plane.
前述的第二電路平面層接著可以經由無電的電鍍、化學氣相沉積、濺鍍塗覆、電鍍、或是此項技術中已知的任何其它技術來加以形成。此導電的金屬化較佳的是Cu、Au或是任何其它適當的導電材料、及/或多層不同的材料。 The aforementioned second circuit plane layer can then be formed by electroless plating, chemical vapor deposition, sputtering coating, electroplating, or any other technique known in the art. The conductive metallization is preferably Cu, Au or any other suitable conductive material, and/or multiple layers of different materials.
在將該互連從該平滑的基板抬起之後,該主要的底部金屬層以及該次要的頂端層現在可以透過此項技術中已知的一傳統的微影蝕刻製程,而被形成為離散的電路。透過此電路化製程所形成的接觸點或墊可以額外被電鍍適當的金屬的合金,以用於例如但不限於抗磨損或是可焊性之所要的應用。 After lifting the interconnect from the smooth substrate, the primary bottom metal layer and the secondary top layer can now be formed as discrete layers through a conventional lithographic etching process known in the art Circuit. The contact points or pads formed through the circuitization process can be additionally electroplated with appropriate metal alloys for applications such as but not limited to anti-wear or solderability.
或者是,替代在前述線中的一介電核心的是,一金屬核心可以透過負型3D列印技術的使用來加以取代,其係利用(但不限於)此項技術中已知的負型工作的光敏的環氧樹脂,藉此除了其中該核心線金屬化將被形成之處以外,一臨時的介電質係被形成到該互連的整個主動區域。接著,該金屬化係透過電鍍、無電的電鍍、化學氣相沉積、濺鍍塗覆或是此項技術中已知的其它技術而被形成,以形成一固體的金屬的線結構。或者是,具有變化的厚度之各種的金屬可被形成在該環氧樹脂層內的中空的結構的內壁上,此係提供所期望的電性及機械性質給終端的應用。接著,該臨時的環氧樹脂係透過此項技術中已知的剝除技術而被移除,並且獨立式的金屬的線或管係留下以用於上述後續的處理。 Alternatively, instead of a dielectric core in the aforementioned line, a metal core can be replaced by the use of negative 3D printing technology, which uses (but is not limited to) the known negative type in this technology. The working photosensitive epoxy resin, whereby a temporary dielectric is formed to the entire active area of the interconnection except where the core wire metallization will be formed. Then, the metallization is formed by electroplating, electroless electroplating, chemical vapor deposition, sputtering coating, or other techniques known in the art to form a solid metal line structure. Alternatively, various metals with varying thicknesses can be formed on the inner wall of the hollow structure in the epoxy resin layer, which provides the desired electrical and mechanical properties for terminal applications. Then, the temporary epoxy resin is removed through the peeling technique known in the art, and the free-standing metal wire or tube is left for the above-mentioned subsequent processing.
或者是,具有或是不具有額外的介電質及金屬化的層以用於 屏蔽或是同軸貫孔之介電核心的、金屬核心的、或是金屬的管可以透過電鍍、無電的電鍍、化學氣相沉積、濺鍍塗覆、或是任何此項技術中已知的其它技術,而被形成於預先被形成在該平滑的玻璃或平滑的陶瓷或是其它適當的材料上的離散的金屬墊或電路上。使得其尺寸是透過在此項技術中常見的一臨時的微影製程來加以界定的。再者,這些墊或是電路可以利用一雷射製版製程而被形成,藉此一金屬的箔係利用一黏著劑或蠟而被臨時黏著至該平滑且平坦的基底材料,並且前述用於線的形成的技術可以建構在該離散的墊或是電路的頂端上。 Or, with or without additional dielectric and metallized layers for Shielding or coaxial through-hole dielectric core, metal core, or metal tube can be through electroplating, electroless plating, chemical vapor deposition, sputtering coating, or any other known in the art Technology, and is formed on discrete metal pads or circuits previously formed on the smooth glass or smooth ceramic or other suitable materials. The size is defined by a temporary lithography process commonly used in this technology. Furthermore, these pads or circuits can be formed using a laser plate making process, whereby a metal foil is temporarily adhered to the smooth and flat base material using an adhesive or wax, and the aforementioned is used for wire The formation technology can be built on the discrete pad or the top of the circuit.
再者,當該些形成的線的端點被形成時,具有變化的幾何形狀之離散的墊及/或電路可以根據該互連之所要的應用而被形成。具有變化的形狀以用於接觸電性端子之可焊的墊或是接腳可以是如同先前所敘述地加以形成且金屬化。該些形成的線的端點在一步驟中的此種形成以及金屬化係節省額外的處理時間,並且結合該些離散的墊在該基底金屬層上的形成係提供一旦前述的環氧樹脂模製製程完成後,在該互連的兩端上有齊平的電路墊的機會。 Furthermore, when the end points of the formed lines are formed, discrete pads and/or circuits with varying geometric shapes can be formed according to the desired application of the interconnection. The solderable pads or pins with varying shapes for contacting the electrical terminals can be formed and metalized as previously described. The formation and metallization of the end points of the formed lines in one step saves extra processing time, and the formation of the discrete pads on the base metal layer provides the epoxy resin mold After the manufacturing process is completed, there is an opportunity for flush circuit pads on both ends of the interconnection.
或者是,在上述的實施例的任一個中,一彈性體或橡膠化合物灌封(potting)材料可以取代一剛性灌封化合物,此係提供該些互連端子柔性以用於配接非共面的電子元件的表面。藉由改變該灌封材料的硬度以及該些形成的線材料、厚度、長度及形狀,吾人可以控制該些形成的線配接端子的每一個的總柔性量、力以及壽命。 Alternatively, in any of the above embodiments, an elastomer or rubber compound potting material can replace a rigid potting compound, which provides the flexibility of the interconnect terminals for mating non-coplanar The surface of the electronic components. By changing the hardness of the potting material and the formed wire material, thickness, length and shape, we can control the total flexibility, force and life span of each of the formed wire mating terminals.
或者是,在一種前述的柔性互連的情形中,一具有一種例如但不限於環氧樹脂的適當硬的材料的格子結構、柱、或是一固體的塊可被 形成在該互連未被該些形成的線或是柔性的灌封材料所佔據的開放空間內。這些結構可以透過相同的3D列印技術,而被形成在該互連主體的開放空間中,其係具有一高度是稍微薄於該互連的整體厚度(~10μm到200μm),其係提供該互連結構一種硬的壓縮止擋,以對抗打算電耦接的裝置之兩個配接的表面。此將會避免該互連結構的過度壓縮及損壞。 Or, in the case of the aforementioned flexible interconnection, a lattice structure, pillars, or a solid block of a suitably hard material such as but not limited to epoxy resin can be used The interconnection is formed in an open space not occupied by the formed lines or flexible potting materials. These structures can be formed in the open space of the interconnect body through the same 3D printing technology, which has a height slightly thinner than the overall thickness of the interconnect (~10μm to 200μm), which provides the The interconnect structure is a hard compression stop to counter the two mating surfaces of the device intended to be electrically coupled. This will avoid excessive compression and damage to the interconnect structure.
儘管目前較佳的實施例已經為了本揭露內容的目的來加以敘述,但是熟習此項技術者可以在方法步驟以及設備部件的配置上做成許多的改變。此種改變係被涵括在如同藉由所附的申請專利範圍所界定的本發明的精神內。 Although the current preferred embodiments have been described for the purpose of this disclosure, those skilled in the art can make many changes in the method steps and the configuration of the equipment components. Such changes are included in the spirit of the present invention as defined by the scope of the attached patent application.
1‧‧‧互連(電互連機構) 1.‧‧Interconnection (electrical interconnection mechanism)
5‧‧‧互連裝置(電互連機構、結構) 5‧‧‧Interconnection device (electrical interconnection mechanism, structure)
6‧‧‧信號線(電路、介電線) 6‧‧‧Signal wire (circuit, dielectric wire)
7‧‧‧電路平面 7‧‧‧Circuit plane
10‧‧‧接觸點(電路元件) 10‧‧‧Contact points (circuit components)
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US201562283090P | 2015-08-20 | 2015-08-20 | |
US62/283,090 | 2015-08-20 | ||
US201562212894P | 2015-09-01 | 2015-09-01 | |
US62/212,894 | 2015-09-01 |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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TW341747B (en) * | 1996-05-17 | 1998-10-01 | Formfactor Inc | Techniques of fabricating interconnection elements and tip structures for same using sacrificial substrates |
US20090053910A1 (en) * | 2005-12-09 | 2009-02-26 | Ibiden Co., Ltd | Printed board with component mounting pin |
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TW341747B (en) * | 1996-05-17 | 1998-10-01 | Formfactor Inc | Techniques of fabricating interconnection elements and tip structures for same using sacrificial substrates |
US20090053910A1 (en) * | 2005-12-09 | 2009-02-26 | Ibiden Co., Ltd | Printed board with component mounting pin |
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