TW202308080A - Electrical connection device characterized in that it is beneficial for a detachable electrical connection in response to a tiny scale and the shield of signal transmission can be generated - Google Patents

Abstract

An electrical connection device includes a core unit and a contact unit positioned in the core unit. The core unit includes: a first insulation layer; a plurality of signal members, first grounding members and second grounding members being disposed in the first insulation layer; and a first grounding plane electrically connected to the first and the second grounding members. The contact unit includes: a plurality of first contact members respectively connected to the signal members; and a plurality of second contact members respectively connected to the first grounding members. Each first contact member and individual signal member are electrically independent from the first grounding plane. Moreover, each second contact member, corresponding first grounding member and at least one second grounding member jointly surround adjacent first contact members. Thereby, it is beneficial for a detachable electrical connection in response to a tiny scale and the shield of signal transmission can be generated.

Description

electrical connection device

The invention relates to an electrical connection device, in particular to an electrical connection device for transmitting electrical signals.

Electrical connectors are used to connect two or more electronic components to each other. They are not only arranged in relatively giant electronic devices, but even small to printed circuit boards and integrated circuits. The electrical connection structure is used to achieve the purpose of forming an electrical connection between specific multiple regions. Among them, in some applications, the electrical connectors are designed to be detachable or detachably connected, so as to remove some faulty components or replace specific components, and under such considerations, for the connection of electrical connectors Reliability and the performance of detachable connection have gradually become one of the design priorities. In terms of the current existing technology, spring structures formed by metal stamping, bundled wires, cantilever beams, and tiny sheet metal structures are all examples of such applications.

Take the flat grid array package (LGA) and ball grid array package (BGA) commonly used in the semiconductor industry as an example to further illustrate. Both of the above two require modular connection to printed circuit boards or chip modules. At the time, the packaging technology used is often selected to make a detachable assembled electrical socket (Socket). However, both the land grid array (LGA) and the ball grid array (BGA) have their own advantages and disadvantages, and they also have their own suitable application environments. They cannot be universally used to produce satisfactory connections in various electrical connection requirements. performance. Especially under the vigorous development of the semiconductor industry, the size (Size) and the pitch (Pitch) are reduced. For the existing electrical connection technology, on the scale of less than 250 microns, not only the cost considerations but also the connection performance will face challenges. It is quite a challenge. If it is further reduced to a scale below 50 microns, it will be even more difficult to provide an ideal solution for achieving separable and repeatable electrical connections under the constraints of processing accuracy, manufacturing cost, and structural strength.

Therefore, the object of the present invention is to provide an electrical connection device that is favorable for detachable and repeatable electrical connection in a micro scale.

Therefore, the electrical connection device of the present invention includes a core unit and a contact unit located on the core unit.

The core unit includes a first insulating layer, a plurality of signal elements arranged in the first insulating layer, a plurality of first ground elements arranged in the first insulating layer, and a plurality of signal elements arranged in the first insulating layer. the second grounding element, and a first grounding plane electrically connected to the first grounding elements and the second grounding elements.

The contact unit includes a plurality of first contact elements respectively connected to the signal elements, and a plurality of second contact elements respectively connected to the first ground elements. Each first contact element and individual signal elements are electrically independent from the first ground plane, and each second contact element, the corresponding first ground element, and at least one second ground element together surround the adjacent first ground plane. a contact piece.

The effect of the present invention is: by means of the first contacts and the second contacts, the existing land grid array package (LGA) and ball grid array package (BGA) can be replaced to achieve detachable electrical connection The purpose, and can use the simple layered assembly method, so that the scale can be further reduced. In addition, when signals are transmitted through the first contacts and the signal elements, because the surrounding configuration of the first ground elements and the second contacts and the second ground elements can generate electrical shielding And optimize the performance of signal transmission.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numerals.

Referring to FIG. 1 , it is a first embodiment of the electrical connection device of the present invention. The first embodiment includes a core unit 1 and a contact unit 2 located on the core unit 1 . In addition, in order to completely package the first embodiment, two packaging boards 9 located on opposite sides and the outermost layer are also used together, and each packaging board 9 is assembled and fixed by an adhesive layer 91 . It should be stated first that although the first embodiment is described by connecting two electronic components on the opposite sides respectively, and the connected contacts are distributed in a two-dimensional array, in actual use, it is not the case that the two opposite sides are connected. The usage scenarios are limited, and the contact form is not limited to the two-dimensional array distribution.

Referring to FIG. 1 and FIG. 2, the core unit 1 includes a first insulating layer 11 having two outer surfaces 111 on opposite sides, a plurality of signal elements 12 disposed in the first insulating layer 11, and a plurality of signal components disposed in the first insulating layer 11. The first grounding element 13 in the first insulating layer 11 , a plurality of second grounding elements 14 disposed in the first insulating layer 11 , a first grounding element 14 attached to one of the outer surfaces 111 of the first insulating layer 11 A ground plane 15 , and a second ground plane 16 attached to the other outer surface 111 of the first insulating layer 11 opposite to the first ground plane 15 . Wherein, in FIG. 2 , one signal component 12 , one first ground component 13 , and two second ground components 14 are presented as a group. Specifically, the first insulating layer 11 is formed with the same number of through holes as the total number of the signal elements 12, the first ground elements 13, and the second ground elements 14, and presents a two-dimensional array arrangement. 110, and the signal components 12, the first ground components 13, and the second ground components 14 are respectively embedded in the through holes 110 according to the wiring configuration requirements.

It should be noted that the types of each signal element 12, each first ground element 13, and each second ground element 14 are substantially the same, but the tasks they are responsible for when they cooperate with each other to achieve electrical connection are different. . In this first embodiment, each signal element 12, each first ground element 13, and each second ground element 14 are roughly columnar, and two disc-shaped plates are formed at opposite ends. connection point, and the type of each signal element 12, each first ground element 13, and each second ground element 14 is not limited to the type shown in the figure, as long as the electrical Just connect and transmit electric signal.

Wherein, the first ground plane 15 and the second ground plane 16 are formed on opposite sides of the first insulating layer 11 respectively, and both are made of conductive materials. In accordance with the positions of the through holes 110 formed on the first insulating layer 11 , holes H at corresponding positions are formed on the first ground plane 15 and the second ground plane 16 . Each hole H1 corresponding to the individual first grounding element 13 and the individual second grounding element 14 is closely fitted with the first grounding element 13 and the second grounding element 14, and each corresponding to the individual The hole H2 of the signal element 12 has a large diameter and is only used for the individual signal elements 12 to pass through without contact, so that the first ground elements 13 and the second ground elements 14 are all connected to the first ground element. The plane 15 and the second ground plane 16 are electrically connected, and each signal element 12 is electrically independent from the first ground plane 15 and the second ground plane 16 .

Referring to FIGS. 2 to 4, a first direction D1 and a second direction D2 perpendicular to the first direction D1 are defined. The contact unit 2 includes a plurality of first contact elements 21, a plurality of second contact elements 22 respectively connected to the first ground elements 13, a plurality of third contact elements 23 respectively connected to the signal elements 12 and located on opposite sides to the first contact elements 21, and A plurality of fourth contact elements 24 are respectively connected to the first ground elements 13 and located on opposite sides to the second contact elements 22 .

It should be noted that the types of each first contact 21 , each second contact 22 , each third contact 23 , and each fourth contact 24 are the same. In the first embodiment, it generally presents a connecting arm that extends transversely but is inclined longitudinally, and thus has a connecting arm that elastically deforms inwardly after being subjected to an external force. The elastic deformation can be achieved by the material elasticity of the metal material itself, combined with the bending shape, or it can be achieved by disposing springs, which is not the same as described in the first embodiment or in the drawings. As shown.

Wherein, because the signal elements 12 , the first ground elements 13 , and the second ground elements 14 are arranged in arrays extending in the first direction D1 and the second direction D2 . Therefore, if presented in a top view as shown in FIG. The contact piece 21 is adjacent to another first contact piece 21 along the first direction D1, and is adjacent to one of the second grounding pieces 14 along the second direction D2, that is to say, connects the first contact pieces 21 and the signal elements 12 of the second contact elements 22 and the first ground elements 13, and between the second ground elements 14, there is a first interval along the first direction D1 The distance L1 is arranged at intervals, and the rows formed by the signal elements 12 and the first ground elements 13 are misaligned with the rows formed by the second ground elements 14 along the second direction D2, and is a second spacing distance L2 along the second direction D2. Wherein, since each first contact piece 21 and each second contact piece 22 has a flexible spring and can deform, the first spacing distance L1 is greater than the second spacing distance L2, so as to reserve the There is a surplus space when the first contacts 21 and the second contacts 22 are deformed. Of course, the positions of the third contact pieces 23 and the fourth contact pieces 24 (see FIG. 2 ) on the other side opposite to FIG. 22 pieces correspond to each other.

Referring to FIG. 4 and FIG. 5 together with FIG. 1, in the first embodiment, the transmission of electrical signals is achieved through each first contact 21 through the corresponding signal element 12, that is, single-ended transmission (Single-ended transmission) -ended) mode of electrical signal transmission. Therefore, in order to achieve signal shielding for each first contact 21 and the corresponding signal 12, taking one of the first contacts 21 and the corresponding signal 12 as shown in FIG. 4 as an example, along the first direction D1 Two second contact pieces 22 and corresponding first grounding pieces 13 are respectively arranged on the opposite sides of D2, and there are three second grounding pieces 14 in a row on the opposite sides along the second direction D2, so that The first contact piece 21 and the corresponding signal piece 12 can be surrounded by the adjacent second contact pieces 22, the corresponding first ground piece 13, and the second ground piece 14, thereby Electrical shielding of the transmitted signal is achieved.

Referring to FIG. 6 and in conjunction with FIG. 3 and FIG. 5 , the first embodiment of the present invention can be connected to a standby device with a plurality of corresponding electrical contacts 81 through the first contact pieces 21 and the second contact pieces 22. The element 8 is electrically connected, and after contacting the to-be-connected element 8 as shown in FIG. At this time, since grooves 90 corresponding to the types of the first contacts 21 and the second contacts 22 are formed on each package board 9, the first contacts 21 and the second contacts 22 are provided. The second contact element 22 produces a surplus space after deformation. Therefore, the first embodiment uses a layered mechanism to simply complete the assembly, and does not require further processing accuracy for the reduction of the scale, and can directly complete the manufacture and assembly of the required scale with almost the same process, that is, it can indeed be used. By simply connecting the signal elements 12 , the first ground elements 13 , the second ground elements 14 and the contact unit 2 , a detachable electrical connection is achieved on a micro scale.

Referring to FIG. 7 and FIG. 8, it is a second embodiment of the electrical connection device of the present invention. The difference between this second embodiment and the first embodiment is that the first contacts 21 are matched in groups of two. To transmit signals, that is to say, the first contacts 21 transmit electrical signals in a differential signal pair. In addition, in order to cooperate with the transmission mechanism of using two adjacent first contact elements 21, the third contact element 23, and the corresponding signal element 12 as a group to transmit electrical signals, the first ground plane 15 has a plurality of through-shaped first through-slots 150 through which a plurality of signal elements 12 pass through without contact, and the second ground plane 16 has a plurality of through-shaped through-shaped through-holes 150 through which a plurality of signal elements 12 pass through without contact. The second through-slot 160 makes the signal elements 12 and the first contact elements 21 electrically independent from the first ground plane 15 and the second ground plane 16 .

In order to generate signal shielding for the first contacts 21 and the third contacts 23 that transmit signals, as well as the corresponding signal members 12, a set of two first contacts as shown in FIG. 7 21 as an example, it consists of two adjacent second contact elements 22 located on opposite sides along the first direction D1 and the corresponding first ground elements 13, and two opposite rows arranged at intervals along the second direction D2, And the four second grounding elements 14 in a row are surrounded together, so as to achieve shielding of electrical signals and optimize the quality and performance of electrical signal transmission. In addition, the second embodiment can achieve the same level as the first embodiment. Same effect.

Referring to FIG. 9 and FIG. 10 , it is a third embodiment of the electrical connection device of the present invention. The difference between this third embodiment and the first embodiment is that the core unit 1 also includes a first insulating layer 11 The spaced second insulating layer 17, and a third grounding plane 18 disposed between the first insulating layer 11 and the second insulating layer 17, the third grounding plane 18 has a grounding surface area 181 formed on the outer surface , and a plurality of signal lines 182 formed on the outside and electrically independent from the ground surface area 181 . Specifically, the ground surface area 181 surrounds a plurality of reserved areas 180 that are also formed on the surface and for the signal lines 182 to be arranged on the same surface, so that the signal lines 182 are arranged behind the reserved areas 180 can be surrounded by the solid structure of the ground surface region 181 . Wherein, some of the signal elements 12 of the core unit 1 are electrically connected to the signal lines 182 , that is, the third embodiment also transmits electrical signals through the signal elements 12 .

In addition to achieving the effect of reducing the scale and achieving detachable electrical connection as in the first embodiment and the second embodiment, the third embodiment also achieves electrical shielding for the signal lines 182 The effect depends on the grounding electrical property of the third ground plane 18, and the physical structure of the ground surface area 181 surrounding the signal lines 182 achieves electrical shielding, so the quality and performance of electrical signal transmission can also be optimized.

To sum up, the electrical connection device of the present invention can cooperate with the simple layered assembly mechanism with the core unit 1 simply by the contact configuration of the contact unit 2, and can be achieved by simply reducing the size when reducing the size. In some cases, the purpose of detachable electrical connection can be achieved, and through the surrounding configuration of the first grounding elements 13 and the second grounding elements 14, the signal elements 12 or the signal lines 182 can be used to transmit signals At the same time, electrical shielding can be produced to optimize the performance of signal transmission. Therefore, can really reach the purpose of the present invention.

But what is described above is only an embodiment of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

1: Core unit 11: The first insulating layer 110: through hole 111: Outer surface 12: Signal piece 13: The first grounding piece 14: Second grounding piece 15: First ground plane 150: The first slot 16: Second ground plane 160: Second slot 17: Second insulating layer 18: Third ground plane 180: reserved area 181: Ground surface area 182: signal line 2: contact unit 21: The first contact piece 22: Second contact piece 23: The third contact piece 24: The fourth contact piece 8: The component to be connected 81: electrical contact 9: Package board 90: Slot area 91: Adhesive layer D1: the first direction D2: Second direction H: hole H1, H2: holes L1: first interval distance L2: second separation distance

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: FIG. 1 is an exploded perspective view illustrating a first embodiment of the electrical connection device of the present invention; FIG. 2 is a partially enlarged three-dimensional exploded view illustrating one of the signal elements, one of the first ground elements, and one of the second ground elements of the core unit of the first embodiment; 3 is a partially enlarged cross-sectional view illustrating that the signal element, the first ground element, and the second ground element are disposed on an insulating layer of the core unit; Fig. 4 is a top view illustrating a contact unit of the first embodiment; 5 is a partially enlarged perspective view illustrating the signal shielding achieved by using multiple first grounding elements and multiple second grounding elements of the core unit; Fig. 6 is a three-dimensional exploded view illustrating the assembled form of the first embodiment and the electrical connection between the first embodiment and a component to be connected; Fig. 7 is a three-dimensional exploded view illustrating a second embodiment of the electrical connection device of the present invention; 8 is a partially enlarged perspective view illustrating a plurality of first through-slots and a plurality of second through-slots on a first ground plane and a second ground plane of the second embodiment; Fig. 9 is a three-dimensional exploded view illustrating a third embodiment of the electrical connection device of the present invention; and FIG. 10 is a partially enlarged perspective exploded view illustrating a third ground plane of the core unit and a plurality of signal lines of the third ground plane in the third embodiment.

1: Core unit

11: The first insulating layer

110: through hole

111: Outer surface

15: First ground plane

16: Second ground plane

2: contact unit

9: Package board

90: Slot area

91: Adhesive layer

H: hole

H1, H2: holes

Claims (9)

An electrical connection device, comprising: A core unit, including a first insulating layer, a plurality of signal elements, disposed in the first insulating layer, a plurality of first ground elements, disposed in the first insulating layer, a plurality of second grounding elements disposed in the first insulating layer, and a first ground plane electrically connected to the first ground members and the second ground members; and a contact unit, positioned on the core unit, and comprising a plurality of first contacts respectively connected to the signal elements, each first contact and individual signal elements are electrically independent from the first ground plane, and A plurality of second contact pieces are respectively connected to the first ground pieces, and each second contact piece, the corresponding first ground piece, and at least one second ground piece jointly surround the adjacent first contact piece. The electrical connection device as described in claim 1, defining a first direction and a second direction perpendicular to the first direction, wherein each first contact of the contact unit is along the first direction with another A first contact piece is adjacent to and adjacent to at least one second ground piece along the second direction, and each first contact piece is composed of at least one adjacent first ground piece and a corresponding second contact piece, and at least one second grounding element to form an electrical shield with another first contacting element. The electrical connection device as claimed in claim 1, wherein the first contacts of the contact unit are in groups of two to cooperate to transmit signals, and the two first contacts of each group are formed by at least one adjacent The second contact piece is surrounded by the corresponding first ground piece and at least one adjacent second ground piece. The electrical connection device according to claim 1, wherein the first insulating layer has two outer surfaces respectively located on opposite sides, the first ground plane is attached to one of the outer surfaces of the first insulating layer, and the electrical The sex connection device also includes a second ground plane attached to the other outer surface of the first insulating layer opposite to the first ground plane and electrically connected to the first ground elements and the second ground elements , wherein each signal element and each first contact element are electrically independent from the first ground plane and the second ground plane. The electrical connection device according to claim 4, wherein the first ground plane has a plurality of through-shaped first through-slots for a plurality of signal components to pass through without contact, and the second ground plane has a plurality of The through-shaped second through-slot through which a plurality of signal elements pass through without contact makes the signal elements and the first contact elements electrically independent from the first ground plane and the second ground plane. The electrical connection device according to claim 2, wherein the signal elements, the first ground elements, and the second ground elements of the core unit are arranged in an array along the first direction and the second direction , and a first separation distance along the first direction is greater than a second separation distance along the second direction. The electrical connection device according to claim 1, wherein the contact unit further includes a plurality of third contact elements respectively connected to the signal elements and located on opposite sides to the first contact elements, and a plurality of third contact elements respectively The fourth contact connected to the first ground and opposite to the second contacts, each of the third contacts and individual signal elements are electrically independent from the first ground plane. The electrical connection device as claimed in claim 1, wherein the core unit further includes a second insulating layer spaced apart from the first insulating layer, and a second insulating layer disposed between the first insulating layer and the second insulating layer The third ground plane has a ground surface area formed on the outside, and at least one signal line formed on the outside and electrically independent from the ground surface area. The electrical connection device as claimed in claim 8, wherein a part of the signal elements of the core unit is electrically connected to the at least one signal line.

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