CN209357620U

CN209357620U - A kind of novel capacitor and device

Info

Publication number: CN209357620U
Application number: CN201920047910.3U
Authority: CN
Inventors: 张海涛; 赖之安; 王克强
Original assignee: Guangxi Xinbaite Microelectronics Co Ltd
Current assignee: Corebest Microelectronics (Wuxi) Co.,Ltd.
Priority date: 2019-01-11
Filing date: 2019-01-11
Publication date: 2019-09-06
Anticipated expiration: 2029-01-11

Abstract

The utility model discloses a kind of novel capacitor and device, it is related to circuit design and device arts, including two layers of pole plate, the dielectric layer being set between two layers of pole plate and the through-hole structure for connecting wherein one layer of pole plate, the edge that the through-hole structure is set to connected pole plate surrounds shield dielectric layer and another layer of pole plate；The increased through-hole in the utility model pole plate edge and a pole plate are connected, dielectric layer is enclosed in centre, the edge of battery is limited and is controlled, so that capacitor is electromagnetic-field-shielded more preferable, the certain performances, such as consistency, anti-interference etc. for improving capacitor element, improve the Q value of capacitor, Insertion Loss is reduced, the efficiency of integrated circuit is improved.

Description

A kind of novel capacitor and device

Technical field

The utility model relates to circuit design and device arts more particularly to a kind of novel capacitors and device.

Background technique

Capacitor is widely used in modern circuit system as basic electronic component, including integrated circuit/ The fields such as MEMS/PCB.The structure design of capacitor has direct association to the performance of capacitor, is to determine capacitive property parameter An important factor for.

As depicted in figs. 1 and 2, traditional capacitor design in pole plate fringe region there are edge effect, while marginal zone The electric field in domain is not due to having to constrain and shield, direct and extraneous connection.

Utility model content

The utility model provides a kind of novel capacitor and device aiming at the problem that background technique, by capacitor plate Around increase via hole, provide preferably constraint and shielding to the electric field in capacitor dielectric region, promote the performance of capacitor.

To achieve the goals above, it the utility model proposes a kind of novel capacitor, including two layers of pole plate, is set to two layers The through-hole structure of dielectric layer between pole plate and connection wherein one layer of pole plate, the through-hole structure are set to connected pole plate Edge surround shield dielectric layer and another layer of pole plate.

Preferably, the through-hole structure uses 3/4 enclosed through-hole structure.

Preferably, the through-hole structure, multiple via holes including being distributed in pole plate edge.

Preferably, the via hole is completely or partially connected with connected pole plate.

Preferably, the pole plate can be the layer structure in layer structure, encapsulation or the PCB in integrated circuit.

The utility model also proposes a kind of electronic device, including the novel capacitor.

The utility model proposes a kind of novel capacitor and device, the increased through-hole in pole plate edge and a pole plate are connected It connects, dielectric layer is enclosed in centre, the edge of battery is limited and controlled, so that capacitor is electromagnetic-field-shielded more preferable, is mentioned Certain performances, such as consistency, anti-interference of high capacitance device etc. improve the Q value of capacitor, reduce Insertion Loss, improve whole electricity The efficiency on road.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is traditional capacitor main view；

Fig. 2 is traditional capacitor bottom view；

Fig. 3 is novel capacitor main view in the utility model first preferred embodiment；

Fig. 4 is novel capacitor bottom view in the utility model first preferred embodiment；

Fig. 5 is electronic device construction schematic diagram in the second preferred embodiment of the utility model；

Label declaration:

M1 is M1 layers of pole plate；M2 is M2 layers of pole plate；D1 is dielectric layer；K1 is through-hole structure；

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, fall within the protection scope of the utility model.

It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding, Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture) Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.

In addition, if relating to the description of " first ", " second " etc. in the utility model embodiment, " first ", " the Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one A this feature.It in addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill Based on personnel can be realized, this technical side will be understood that when the combination of technical solution appearance is conflicting or cannot achieve The combination of case is not present, also not within the protection scope of the requires of the utility model.

The utility model proposes a kind of novel capacitors；

In the utility model first preferred embodiment, as shown in Figure 3 and Figure 4, including two layers pole plate M1 and M2, it is set to two Dielectric layer D1 between layer pole plate is set to pole with the through-hole structure K1, the through-hole structure K1 for connecting wherein one layer of pole plate The edge of plate M1 surrounds shield dielectric layer D1 and pole plate M2；The through-hole structure K1 includes being distributed in pole plate edge Multiple via holes；

In the utility model first preferred embodiment, the through-hole structure K1 uses 3/4 enclosed through-hole structure；Via hole It can be connected with M1 layers of pole plate conducting or part with M1 layers of pole plate, it is adjustable.

It is intended to be noted here that be shown by taking pole plate M1 as an example in the present embodiment, it certainly can also be by through-hole structure K1 It is set to encirclement shield dielectric layer D1 and pole plate M1 on pole plate M2；

Pole plate described in the utility model can be the layer structure in layer structure, encapsulation or the PCB in integrated circuit, Yi Jiqi Its any Space Coupling structure；

The utility model also proposes a kind of electronic device, as shown in figure 5, including the novel capacitor, with tradition electricity Structure of container is not processed difference to fringe region, places the through-hole of M1 or M2 layers of connection, and pass through M1 or M2 layers and capacitance pole Plate is connected.

Dielectric between D1 layers of condenser armature is surrounded shielding by multiple via holes between two layers by the utility model, is changed Better capacitance characteristic control may be implemented the shortcomings that the edge in these regions is not constrained and shielded in traditional capacitance design System, the Q value including improving capacitor, reduces Insertion Loss etc..

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims

1. a kind of novel capacitor, which is characterized in that including two layers of pole plate, the dielectric layer being set between two layers of pole plate and company The through-hole structure of wherein one layer of pole plate is connect, the edge that the through-hole structure is set to connected pole plate surrounds shielding electricity and is situated between Matter layer and another layer of pole plate.

2. novel capacitor according to claim 1, which is characterized in that the through-hole structure is logical using 3/4 enclosed Pore structure.

3. novel capacitor according to claim 1, which is characterized in that the through-hole structure, including it is distributed in pole plate Multiple via holes at edge.

4. novel capacitor according to claim 3, which is characterized in that the via hole is all or part of with connect pole Plate conducting.

5. novel capacitor according to claim 1, which is characterized in that the pole plate can be the layer knot in integrated circuit Layer structure in structure, encapsulation or PCB.

6. a kind of electronic device, which is characterized in that including novel capacitor such as described in any one of claim 1 to 5.