KR101924579B1 - Stacked cable - Google Patents

Abstract

The present invention relates to a laminated cable, and more particularly to a laminated cable for connecting signals between electronic components.
A laminated cable according to an embodiment of the present invention includes a first planar member including a first connecting portion located at both ends and a first main portion located between the first connecting portions and having a lower shielding layer; A second planar member provided on an upper portion of the first planar member and including a second connection portion located at both ends and a second main portion positioned between the second connection portions and having a signal line pattern; A third planar member provided on an upper portion of the second planar member and including a third connection portion located at both ends and a third main portion positioned between the third connection portions and having an upper shielding layer; And a shielding member provided on both sides of the signal line pattern and electrically connecting the lower shielding layer and the upper shielding layer.

Description

Stacked cable {STACKED CABLE}

The present invention relates to a laminated cable, and more particularly to a laminated cable for connecting signals between electronic components.

Generally, a portable terminal is a device that provides a wireless communication function between a user and a user or between a user and a service provider through a mobile communication base station or the Internet. Inevitably, the portable terminal requires an antenna device. In recent years, An antenna device is built in the portable terminal.

Meanwhile, as the functions of the portable terminal have diversified, a plurality of devices such as a camera module, a battery module, a speaker module, and a Bluetooth module are generally installed therein.

Accordingly, in order to secure a plurality of module mounting spaces, the portable terminal has a structure in which an internal antenna device and a main circuit board are spaced apart from each other by a predetermined distance, and the antenna device and the main circuit board are electrically connected using a coaxial cable .

However, in the related art, the main circuit board and the antenna substrate are electrically connected to each other by a coaxial cable having a circular cross section, thereby ensuring a mounting space for a plurality of modules to be additionally installed in the portable terminal, In order to prevent the thickness of the portable terminal from increasing according to the thickness of the portable terminal, a structure is used in which the portable terminal is disposed in an edge region (outer region).

However, such a conventional portable terminal is difficult to attain slimness and miniaturization of the portable terminal due to the thickness of the coaxial cable itself, and defects such as disconnection frequently occur due to warping or bending at the time of assembly.

KR 10-2011-0109429 A

The present invention provides a laminated cable capable of not only improving component mounting performance and design freedom but also ensuring connection reliability and improving durability against warpage, bending, and the like.

A laminated cable according to an embodiment of the present invention includes a first planar member including a first connecting portion located at both ends and a first main portion located between the first connecting portions and having a lower shielding layer; A second planar member provided on an upper portion of the first planar member and including a second connection portion located at both ends and a second main portion positioned between the second connection portions and having a signal line pattern; A third planar member provided on an upper portion of the second planar member and including a third connection portion located at both ends and a third main portion positioned between the third connection portions and having an upper shielding layer; And a shielding member provided on both sides of the signal line pattern and electrically connecting the lower shielding layer and the upper shielding layer.

The shielding member may include a plurality of conductive vias arranged along the longitudinal direction of the signal line pattern.

The first, second, and third body portions may include an insulating layer having flexibility.

The first connecting portion, the second connecting portion, and the third connecting portion may include an insulating layer having a rigid shape.

And a signal terminal and a shield terminal provided on the third connection unit and exposed to the outside.

And a signal via electrically connecting the signal terminal and the signal line pattern.

The signal line pattern is extended at least partially so as to be provided in the second connection portion, and the signal via may be formed through the second connection portion and the third connection portion.

The second connection portion may have a non-metal region where a metal material is removed at a position overlapping the signal terminal.

The shielding terminal may be grounded.

The second planar member may further include an intermediate planar member provided with a plurality of second planar members and provided with an intermediate shielding layer provided between the plurality of second planar members and electrically connected to the shield member.

And a plurality of signal vias electrically connected to a plurality of signal line patterns provided in the second planar member, wherein the plurality of signal vias are spaced apart from each other.

The signal line pattern may be a strip structure or a microstrip structure.

And a metal layer provided on an outer surface of the first body portion and the third body portion.

And a protective layer provided on the metal layer.

According to the laminated cable in accordance with the embodiment of the present invention, the coaxial cable used to reduce noise due to electromagnetic waves is produced by laminating a first planar member, a second planar member, and a third planar member formed of a film or a substrate , A portable terminal provided with a laminated cable, and the like can be made slimmer, and component mounting performance and design freedom can be improved.

In addition, since the connecting portions located at both ends of the laminated cable are formed of the insulating layer having high hardness and the body portion extending between the connecting portions is formed of the insulating layer having high ductility, the space problem due to the use of the separate connector at the time of connecting the laminated cable can be solved The connection reliability can be ensured and the durability against bending, folding, etc. can be improved.

In addition, by disposing a separate shielding member on both sides of the signal line pattern, it is possible to completely block the noise due to electromagnetic waves generated in the transmission of the high-frequency signal in all directions including not only the upper and lower portions but also the side portions, Even when a plurality of signal lines are required due to a communication environment using a plurality of signal lines, the plurality of signal lines can be efficiently shielded in all directions.

1 shows a first planar member according to an embodiment of the present invention;
2 is a view showing a second planar member according to an embodiment of the present invention;
3 is a view showing a third planar member according to an embodiment of the present invention;
4 is a view showing an electrical connection structure of a laminated cable according to an embodiment of the present invention.
5 is a view showing a laminated cable according to an embodiment of the present invention.
6 is a view showing an electrical connection structure of a laminated cable according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, Is provided to fully inform the user. Wherein like reference numerals refer to like elements throughout.

A laminated cable according to an embodiment of the present invention includes: a first planar member (100) including a first connection part located at both ends and a first main part located between the first connection part and having a lower shielding layer (120); A second planar member provided on the first planar member (100) and including a second connection portion located at both ends and a second main portion located between the second connection portion and having a signal line pattern (220) 200); A third planar member provided on the upper portion of the second planar member 200 and including a third connection portion positioned at both ends and a third main portion positioned between the third connection portions and having an upper shielding layer 320, 300); And a shielding member provided on both sides of the signal line pattern 220 and electrically connecting the lower shielding layer 120 and the upper shielding layer 320.

Such a laminated cable can be used for transmission of a signal in a high frequency region (for example, 1 to 10 GHz) connecting a fingerprint sensor module or an RF signal between the main board and the antenna board in a communication device such as a cellular phone.

Here, the first planar member 100, the second planar member 200, and the third planar member 300 include the insulating layers 110, 210 and 310, and the lower shielding layer 120, the signal line pattern 220 and an upper shielding layer 320 are formed from a conductive layer formed on the insulating layer. The first planar member 100 includes an insulating layer 110 and a lower shielding layer 120 formed on the insulating layer 110. The second planar member 200 includes an insulating layer 210, The third planar member 300 includes an insulating layer 310 and an upper shielding layer 320 formed on the insulating layer 310. The signal line pattern 220 is formed on the insulating layer 210, . ≪ / RTI >

As described above, the first planar member 100, the second planar member 200, and the third planar member 300 may be formed by plating the conductive layer on the insulating layer by electroplating or thermally pressing the conductive film, For example, a flexible copper clad laminate (FCCL) in which a copper foil is laminated on a polyimide film. That is, the copper foil, that is, the copper layer of the manufactured flexible copper-clad laminate film, which is fabricated from the first face sheet member 100, the second face sheet member 200 and the third face sheet member 300 constituting the laminated cable of the present invention, And the laminated cable is formed by stacking the laminated cables. In addition, the manufacturing process can be simplified and the economical efficiency can be improved. In addition, the portable terminal provided with the laminated cable can be made slim, The degree of freedom can be improved.

The first planar member 100, the second planar member 200, and the third planar member 300 are divided into a connecting portion located at both ends and a body portion located between the connecting portions, and the connecting portion is rigid And the main body portion can be formed to have a flexible shape. The connecting portion and the main body portion are regions reserved in the designing stage, and the division is made by the formation of the insulating layers 140, 240, and 340 having hardness as described later.

The connection portions of the first planar member 100, the second planar member 200 and the third planar member 300 are formed as the hard regions R having a high hardness and the main portion has the soft regions F having high flexibility. It is possible to solve the space problem due to the use of a separate connector when connecting the laminated cable, to secure the connection reliability, and to improve the component mounting performance.

Hereinafter, each component of the laminated cable will be described in detail.

Fig. 1 (a) is a schematic view showing a first planar member, and Fig. 1 (b) is a view schematically showing each component of a first planar member 100. Fig. Referring to FIG. 1, the first planar member includes a first connection portion positioned at both ends and a first main portion positioned between the first connection portions and having a lower shielding layer 120, and the lower shielding layer 120, Are formed on the insulating layer 110 as described above. Here, the lower shielding layer 120 is provided below the signal line pattern 220 to be described later, and serves to shield and reduce noise due to electromagnetic waves generated at the time of high frequency transmission by the signal line pattern 220 at the bottom .

The insulating layer 110 may be formed only on the first main body portion of the first planar member 100, or may be formed on both the first connection portion and the first main body portion as shown. The insulating layer 110 may be made of a flexible material, for example, a polyimide resin such as polyimide resin, polyether imide resin, or polyamide imide resin, or a polyamide resin or polyester resin. When a polyimide resin system is used, heat resistance and insulation can be improved.

The lower shielding layer 120 may be formed on the insulating layer 110 and may extend over the entire surface of the first main body 100 of the first planar member 100 in a wider form than the width of the signal line pattern 220 . In addition, the lower shielding layer 120 may be formed not only on the first body portion of the first planar member 100, but also on the first connection portion, and may be patterned so as to be insulated from signal vias described later. Here, the lower shielding layer 120 may be made of a metallic material including at least one of copper, silver, platinum, nickel, and palladium.

A cover layer 130 may be further formed on the first main body portion of the first planar member 100. The cover layer 130 may be of a film type coated with an adhesive on one side and may be made of a polyimide resin material for maintaining insulation of the signal line pattern 120 and planarizing the upper portion.

A hard insulating layer 140 having hardness is laminated on the first connecting portion of the first planar member 100. The hard insulating layer 140 may be made of an epoxy resin having rigidity after curing and an insulating layer having a predetermined strength or a prepreg which is melted when heat is applied. The hard insulating layer 140 may be formed on one side or both sides of the first connection part.

As described above, when the hard insulating layer 140 is laminated on the first connection part of the first planar member 100, a step may be formed between the first connection part and the first main body part. Since the first main body portion of the first planar member 100 includes the insulating layer 110 having softness, even when a step is generated, in the lamination with the second planar member 200 or the third planar member 300 The lamination junction area between the connection parts and between the main parts can be maintained. However, in order to reduce manufacturing defects caused by such steps during lamination bonding, a hard insulating layer 140 formed on the first connecting portion of the first planar member 100 and a second connecting portion The height of the cover layer 130 to be formed can be the same. In this case, the cover layer 130 may be formed of a single layer, or may be formed by stacking a plurality of layers including a bonding sheet or the like.

Fig. 2 (a) is a schematic view showing the second planar member, and Fig. 2 (b) is a view schematically showing each component of the second planar member 200. Fig. 2, the second planar member 200 is provided on the upper side of the first planar member 100, and includes a second connection portion located at both ends and a signal line pattern 220 located between the second connection portions And the signal line pattern 220 is formed on the insulating layer 210 as described above.

The insulating layer 210 may be formed only on the second body portion of the second planar member 200, or may be formed on both the second connection portion and the second body portion as shown. The insulating layer 210 may be made of a flexible material, for example, a polyimide resin such as polyimide resin, polyether imide resin, or polyamide imide resin, or a polyamide resin or polyester resin. When the polyimide resin system is used, the heat resistance and the insulating property can be improved as described above.

The signal line pattern 220 is formed on the insulating layer 210 and extended from the second body portion to at least part of the second connection portion. The signal line pattern 220 may be formed by patterning a conductive layer made of a metallic material including at least one of copper, silver, platinum, nickel, and palladium so as to extend in one direction. Although the signal line pattern 220 extending in a straight line is shown in the drawing, the shape of the signal line pattern 220 is not limited thereto. Various shapes for connecting and receiving signals by connecting both ends of the laminated cable may be applied. to be.

The signal line pattern 220 may have a strip or microstrip structure and may be formed to have an impedance range of 50 to 100 Ω in order to improve the impedance characteristic and the transmission rate in the high frequency region band. have.

A cover layer 230 may be further formed on the second main body portion of the second planar member 200 and a hard insulating layer 240 having a predetermined strength may be further formed on the second connection portion of the second planar member 200 The first planar member 100 is the same as the first planar member 100 described above, so that a duplicate description will be omitted.

Fig. 3 (a) is a schematic view showing a third planar member, and Fig. 3 (b) is a view schematically showing each component of a third planar member. 3, the third planar member is provided on the upper portion of the second planar member 200 described above, and has a third connection portion located at both ends and an upper shielding layer 320 located between the third connection portions And the upper shielding layer 320 is formed on the insulating layer 310 as described above. Here, the upper shielding layer 320 is provided on an upper portion of the signal line pattern 220, which will be described later, and shields the noise due to the electromagnetic waves generated at the time of high frequency transmission by the signal line pattern 220 .

The insulating layer 310 may be formed on both the third connecting portion of the third planar member 300 and the third main body portion. The insulating layer 310 may be made of a flexible material, for example, a polyimide resin such as a polyimide resin, a polyether imide resin, or a polyamide imide resin, or a polyamide resin or a polyester resin. When the polyimide resin system is used, the heat resistance and the insulating property can be improved as described above.

The upper shielding layer 320 may be formed on the insulating layer 310 and may extend over the entire surface of the third main body portion 300 of the third planar member 300 in a wider form than the width of the signal line pattern 220. In addition, the upper shield layer 320 may be formed in the third connection portion as well as the third body portion of the third planar member 300, and may be patterned so as to be insulated from signal vias described later. The upper shield layer 320 may be formed of a metallic material including at least one of copper, silver, platinum, nickel, and palladium.

A cover layer 330 may be further formed on the third main body portion of the third planar member 300 and a hard insulating layer 340 having a predetermined strength may be further formed on the third connection portion of the third planar member 300 And the second planar member 200 are the same as those described above with respect to the first planar member 100 and the second planar member 200, so that duplicate descriptions will be omitted.

A signal terminal 420 and a shielding terminal 440 which are exposed to the outside are formed on the third connecting portion of the third shielding member 300. The signal terminal 420 is connected to an external signal circuit (not shown) and is electrically connected to the signal line pattern 220 through the signal via 600. Although not shown, the signal terminal 420 may be directly connected to the signal via 600 in the third connection, in which case the signal terminal 420 is formed by extending the upper shield layer 320 into the third connection, And may be formed by patterning at least a part of the extended upper shielding layer 320. Needless to say, the signal terminal 420 and the signal via 600 may be electrically connected by an external signal circuit.

The signal terminal 420 may be formed on the non-metal region A where the metal material of the connection portion disposed below is removed (see FIG. 4). In other words, the signal terminal 420 is formed on the third planar member 300 The second connecting portion or the second connecting portion and the first connecting portion located below the signal terminal 420 are formed on the third connecting portion of the non-metal region 420 where the metal material is removed, So that the radiation efficiency can be improved.

By providing the signal terminal 420 in the non-metal region A in which the conductive layer, the wiring, and the conductive via are not disposed, it is possible to ensure the stable operation characteristics of the external signal circuit connected to the signal terminal 420. Here, the removal of the metal material may be performed through patterning for removing the metal material in each connection portion, but may be performed through a fill-cut for removing a portion of the connection portion.

The shielding terminal 440 is connected to an external shielding circuit (not shown) and is electrically connected to the upper shielding layer 320. Here, the external shielding circuit connected to the shielding terminal 440 may be a circuit to which a constant voltage is applied, but it may be constructed as a ground circuit so as to more effectively shield the noise due to electromagnetic waves generated when the high- .

Although the signal terminal 420 and the shielding terminal 440 are formed in the form of a pad on the hard insulating layer 340 of the third connecting portion in the drawing, the shapes of the signal terminal 420 and the shielding terminal 440 But it is not limited thereto and may have a variety of shapes that electrically connect the external circuit to the signal via 600 or the top shield layer 320, such as being formed in a protruding or depressed shape and coupled with an external signal circuit or an external shield circuit Of course.

FIG. 4 is a view showing an electrical connection structure of a laminated cable according to an embodiment of the present invention, and FIG. 5 is a view showing a laminated cable according to an embodiment of the present invention.

4 and 5, the laminated cable according to the embodiment of the present invention is formed by sequentially laminating the first planar member 100, the second planar member 200, and the third planar member 300 The lower shielding layer 120 and the upper shielding layer 320 are electrically connected to each other on both sides of the signal line pattern 220 and the noise due to electromagnetic waves generated when the high- A shielding member for shielding and reducing is formed.

The shielding member may be formed in the form of a metal plate for completely shielding the side surface of the signal line pattern 220 by being connected to the upper shielding layer 120 and the lower shielding layer 320, A plurality of conductive vias 500 are formed along the longitudinal direction of the signal line pattern 220 in order to connect the upper shield layer 120 and the lower shield layer 320 disposed in the vertical direction in the process of stacking the signal line patterns 220, To form a shielding member. The plurality of conductive vias 500 may be arranged at regular intervals on both sides of the signal line pattern 220 in the body portion, and the interval between the respective conductive vias 500 is advantageously as narrow as possible.

The conductive vias 500 can be formed using a physical drilling process or a laser. In the case of forming the conductive vias 500 using a laser, via holes are formed in the third body portion, the second body portion, and the first body portion by using a YAG laser or a CO ₂ laser, So that the conductive vias 500 can be formed.

In addition, the metal material may include at least one of copper, silver, tin, gold, nickel, and palladium, and filling of the metal material may be performed by electroless plating, electrolytic plating, screen printing, sputtering, evaporation, ink jetting, And fencing may be used. It is needless to say that the fill of the metal material does not need to completely fill the inside of the via hole and can be formed to have a certain thickness from the outer periphery of the via hole.

The conductive vias 500 for electrically connecting the lower shielding layer 120 and the upper shielding layer 320 are electrically connected to the signal line patterns 220 at predetermined intervals The upper shielding layer 320, the shielding member and the lower shielding layer 120 are electrically connected to each other through the shielding terminal 440 so that they can all be electrically grounded. Therefore, it is possible to reduce not only the upper and lower portions of the signal line pattern 220 but also the noise due to the electromagnetic waves generated at the side portions during transmission of the high-frequency signal.

The signal via 600 is formed at the connection portion of the second planar member 200 and the third planar member 300 to electrically connect the signal line pattern 220 from the signal terminal 420. [ The signal vias 600 are provided on the ends of the signal line patterns 120 that are electrically insulated from the upper shield layer 320 and the lower shield layer 220 and extended to the connection portions. The signal via 600 forms a part of the signal transmission path when the signal via 600 is formed at the connection portion of the second planar member 200 and the third planar member 300. Therefore, in order to more effectively shield the electromagnetic wave generated by the transmission of the high-frequency signal, the second connection portion and the third connection portion are formed to surround the signal via 600 at a predetermined interval in the peripheral portion of the signal via 600 May be included.

The laminated cable according to the embodiment of the present invention may further include a metal layer 700 formed on the outer surfaces of the first and third main body portions, that is, the lower surface of the first main body portion and the upper surface of the third main body portion. The metal layer 700 is formed on the entire surface of the first body portion and the third body portion including the plurality of conductive vias 500 to electrically connect the conductive vias 500 to each other, The electrical connection between the layer 320 and the lower shielding layer 120 can be improved. The metal layer 700 may be formed to cover the entire surface of the outer surfaces of the first and third main body portions using a sputtering method.

A protective layer 800 for electrical insulation may be further formed on the metal layer 700. The protective layer 800 may be formed by applying an insulating ink to the metal layer 700 and curing the metal layer 700 with ultraviolet rays or heat .

6 is a view showing an electrical connection structure of a laminated cable according to another embodiment of the present invention.

6, a laminated cable according to another embodiment of the present invention includes a plurality of second planar members 200 positioned between a first planar member 100 and a third planar member 300, And an intermediate shielding member 920 disposed between the second face sheet members 200 and electrically connected to the shielding member. In this case, the intermediate planar member includes the same structure as the above-described first planar member 100, that is, the intermediate shielding layer 920 in the body portion, and the intermediate shielding layer 920 is formed on the insulating layer .

Here, the lower shielding layer 120, the intermediate shielding layer 920, and the upper shielding layer 320 are electrically connected by the conductive vias 500. The first signal line pattern 222 and the second signal line pattern 224 included in the plurality of second planar members 200 are arranged in a lateral direction in order to prevent interference between signals transmitted through the respective signal line patterns They are spaced up and down at regular intervals.

Also, the first signal line pattern 222 and the second signal line pattern 224 are electrically connected by the first signal via 602 and the second signal via 604, respectively. Since the signal line patterns are arranged to be spaced laterally at regular intervals as described above, the signal vias may be spaced apart from each other, and a plurality of signal terminals may also be provided. Here, the first signal via 602 is formed through the intermediate planar member including the intermediate shielding layer 920 and the third planar member 300, and the second signal via 604 is formed through the third planar member 300 As shown in FIG.

As described above, the first signal line pattern 222 and the second signal line pattern 224 are electrically connected by the plurality of signal vias 602 and 604, respectively, so that signals having different frequencies can be transmitted. That is, signals having different frequencies, for example, a 3G signal such as W-CDMA and a 4G signal such as LTE can be transmitted through one laminated cable, and a first signal line pattern 222 Is grounded to the upper and lower portions as well as the upper and lower portions by the lower shielding layer 120, the intermediate shielding layer 920 and the conductive via 500 to shield the electromagnetic waves generated in the transmission of the high frequency signal, The signal line pattern 224 is shielded by the middle shield layer 920, the top shield layer 320, and the conductive vias 400, top, bottom, and both sides.

The intermediate planar member having a plurality of second planar members 200 stacked thereon and having an intermediate shielding layer 920 provided between the plurality of signal line patterns 222 and 224, By constructing a cable, signals having different frequencies can be selectively or simultaneously transmitted, and electromagnetic waves generated by the respective signals can be individually shielded so that electromagnetic waves generated by a very high frequency band of tens GHz or more required by the next generation mobile communication service Can be shielded more efficiently.

While the preferred embodiments of the present invention have been described and illustrated above using specific terms, such terms are used only for the purpose of clarifying the invention, and the embodiments of the present invention and the described terminology are intended to be illustrative, It will be obvious that various changes and modifications can be made without departing from the spirit and scope of the invention. Such modified embodiments should not be individually understood from the spirit and scope of the present invention, but should be regarded as being within the scope of the claims of the present invention.

100: first surface member 110, 210, 310: insulating layer
120: lower shielding layer 130, 230, 330: cover layer
140, 240, 340: a hard insulating layer 200: a second planar member
220: signal line pattern 300: third surface member
320: upper shield layer 420: signal terminal
440: shielding terminal 500: conductive vias
600: signal via 700: metal layer
800: protective layer

Claims (14)

A first connection portion formed on the first connection portion and the first connection portion, and a first connection portion disposed on both ends of the first connection portion, and a first body portion positioned between the first connection portions, A first hard insulating layer formed on the first connection portion, a lower shielding layer formed on the first body portion on the first flexible insulating layer, and a second shielding layer formed on the first shielding layer to flatten the upper portion of the first connection portion and the first main body portion A first planar member including a first flexible cover layer;
And a second body portion located between the second connection portions, wherein the second connection portion is formed on the first connection member and the second connection portion is formed on the second connection portion, A signal line pattern formed on the second main body portion on the second flexible insulating layer, and a second signal line pattern formed on the signal line pattern on the second flexible insulating layer, A second planar member including a second flexible cover layer for planarizing an upper portion of the second connection portion and the second main body portion on the second planar surface;
A third connecting portion provided at an upper portion of the second planar member and positioned at both ends, and a third body portion positioned between the third connecting portions, wherein the third connecting portion and the third connecting portion formed at the third connecting portion, An upper shield layer formed on the third body portion on the third soft insulating layer, and a third hard insulating layer on the third soft insulating layer, the third hard insulating layer formed on the third soft insulating layer, A third planar member including a connection portion and a third flexible cover layer for planarizing an upper portion of the third main body portion;
And a plurality of signal line patterns provided on both sides of the plurality of signal line patterns included in the plurality of second planar members through the first, second, and third main body portions, respectively, A shielding member for electrically connecting;
An intermediate plane member provided between the plurality of second planar members and having an intermediate shielding layer made of a metallic material and electrically connected to the shielding member; And
And a metal layer provided on a front surface of an outer surface of the first and third main body portions, the shield layer being exposed from an outer surface of the first and third main body portions,
The upper and lower outer surfaces of the first face sheet member, the second face sheet member and the third face sheet member are laminated by the first soft cover layer, the second soft cover layer and the third soft cover layer,
Wherein each of the first flexible cover layer, the second flexible cover layer and the third flexible cover layer is formed by laminating a film-type bonding sheet coated with an adhesive in a plurality of layers,
Wherein the third planar member includes a plurality of signal terminals and a shield terminal exposed to the outside on the third hard insulating layer,
A plurality of signal vias are formed in the second connecting portion and the third connecting portion to electrically connect the plurality of signal terminals and the plurality of signal line patterns through the second connecting portion and the third connecting portion,
And a conductive pattern is formed in the second connection portion and the third connection portion so as to surround the plurality of signal vias at a predetermined distance from the periphery of each signal via.
The method according to claim 1,
The shielding member
And a plurality of conductive vias arranged along the longitudinal direction of the signal line pattern.
delete delete delete delete delete The method according to claim 1,
And the second connecting portion has a non-metal region in which a metal material is removed at a position overlapping with the signal terminal.
The method according to claim 1,
The shielding terminal is grounded.
delete The method according to claim 1,
Wherein the plurality of signal vias are spaced apart from each other.
The method according to claim 1,
Wherein the signal line pattern is a strip structure or a microstrip structure.
delete The method according to claim 1,
And a protective layer provided on the metal layer.

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