CN105682342A - Circuit board and terminal - Google Patents
Circuit board and terminal Download PDFInfo
- Publication number
- CN105682342A CN105682342A CN201610105706.3A CN201610105706A CN105682342A CN 105682342 A CN105682342 A CN 105682342A CN 201610105706 A CN201610105706 A CN 201610105706A CN 105682342 A CN105682342 A CN 105682342A
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- Prior art keywords
- layer
- signal
- signal line
- circuit card
- line layer
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structure Of Printed Boards (AREA)
Abstract
The invention discloses a circuit board. The circuit board comprises a first signal line layer, a second signal line layer, a first reference layer and a second reference layer, which are stacked, wherein the first reference layer and the second reference layer are arranged between the first signal line layer and the second signal line layer; the first reference layer is adjacent to the first signal line layer; the second reference layer is adjacent to the second signal line layer; a signal transmitted by the first signal line layer flows back to a source end through the first reference layer; the signal transmitted by the second signal line layer flows back to the source end through the second reference layer; and the circuit board can avoid interference between different signals. The invention further discloses a terminal with the circuit board.
Description
Technical field
The present invention relates to field of circuit boards, particularly relate to a kind of circuit card for anti-signal disturbing and there is the terminal of this circuit card.
Background technology
Along with the development of science and technology, every field all needs various electric apparatus equipment, and circuit card becomes a part very important in market and life, is widely used in every field, such as, and the field such as consumer electronics, space flight and aviation, medical treatment, office. Circuit card is also called printed circuit board, comprises rigid circuit board, flexible PCB and soft or hard board. Rigid circuit board (PrintedCircuitBoards, PCB) is circuit card the most common, its good mechanical property, but cannot bend; Flexible PCB (FlexiblePrintedCircuit, FPC) take flexible materials as base material and obtained circuit card, has that wiring density height, light weight, thickness is thin and the advantage such as made of soft, and it can bend, reel and folding; Soft or hard board has the feature of rigid circuit board and flexible PCB concurrently, soft or hard board is suppressed with flexible PCB by rigid circuit board, finished product comprises rigid region and flex region, rigid region is the requirement of the electrical parts for certain bearing capacity of satisfying the demand, and flexible portion is then for the requirement of the activity of satisfying the demand or the electrical parts of bending. Circuit card is divided into single plate, doubling plate and multi-ply wood by the number of wiring layer.
When multi-ply wood connects up, generally arranging a complete stratum as it with reference to layer at the adjacent layers of wiring layer, signal can return to source along this with reference to laminar flow when transmission, and owing to the impedance of planar conductor is little, therefore, signal easily returns to source by plane. in the prior art, usually the signal wire on different signal wire or different lamination is set to shared one with reference to layer during wiring, only consider the process of the signal disturbing between the signal wire on same lamination, ignore the interference of signal on return flow path, especially when the big signal of electric current and the little sensitive signal of electric current reflux via same path, the sensitive signal that electric current is little is easy to be interfered, thus affect the normal transmission of signal, such as, when the return flow path of the big PA power supply signal of electric current and the little sound signal of electric current is same path, sound signal can be subject to serious interference.
Summary of the invention
Technical problem to be solved by this invention is, it is provided that a kind of circuit card, and described circuit card can avoid the interference between different signal.
In order to solve the problems of the technologies described above, the present invention by the following technical solutions:
On the one hand, the present invention provides a kind of circuit card, described circuit card comprises the first signal line layer that stacking is arranged, second signal line layer, first with reference to layer and the 2nd reference layer, described first is all arranged between described first signal line layer and described second signal line layer with reference to layer and the described 2nd with reference to layer, described first reference layer is near described first signal line layer, described 2nd reference layer is near described second signal line layer, it is back to source by described first with reference to layer by the signal of described first signal line layer transmission, it is back to source by the described 2nd with reference to layer by the signal of described second signal line layer transmission.
Wherein, described circuit card also comprises first medium layer, and described first medium layer comprises the first relative surface and the 2nd surface, and described first is arranged at described first surface with reference to layer, and the described 2nd is arranged at described 2nd surface with reference to layer.
Wherein, described first is arranged at whole described first surface continuously with reference to layer, and the described 2nd is arranged at whole described 2nd surface continuously with reference to layer.
Wherein, described first comprises the first reference section and the 2nd reference section with reference to layer, described first signal line layer comprises many first signal wires and many second signal lines, described first signal wire drops in described first reference section described first with reference to the orthographicprojection on layer, and described second signal line drops on described 2nd reference section described first with reference to the orthographicprojection on layer.
Wherein, described 2nd comprises the 3rd reference section and the 4th reference section with reference to layer, described second signal line layer comprises many articles of the 3rd signal wires and many articles of the 4th signal wires, described 3rd signal wire drops on described 3rd reference section the described 2nd with reference to the orthographicprojection on layer, and described 4th signal wire drops on described 4th reference section the described 2nd with reference to the orthographicprojection on layer.
Wherein, described first comprises multiple 5th reference section with reference to layer, described first signal line layer comprises many articles of the 5th signal wires, 5th signal wire described in every article drops in described 5th reference section described first with reference to the orthographicprojection on layer, the width on the short limit of described 5th reference section is greater than the live width of described 5th signal wire, and the line that the length on the long limit of described 5th reference section is greater than described 5th signal wire is long.
Wherein, described circuit card is flexible PCB, rigid circuit board or soft or hard board.
Wherein, more than described terminal circuit card described in arbitrary item.
Compared with prior art, the technical scheme of the present invention at least has following useful effect:
In the technical scheme of the present invention, described circuit card comprises the first signal line layer, second signal line layer, the first reference layer and the 2nd reference layer that stacking is arranged, described first is all arranged between described first signal line layer and described second signal line layer with reference to layer and the described 2nd with reference to layer, described first is adjacent with described first signal line layer with reference to layer, described 2nd is adjacent with described second signal line layer with reference to layer, the signal of described first signal line layer is by described first with reference to layer backflow, and the signal of described second signal line layer is by described 2nd reference layer backflow;
Owing to described first is adjacent with described first signal line layer with reference to layer, described 2nd is adjacent with described second signal line layer with reference to layer, therefore, it is described first with reference to layer from the reference layer that described first signal line layer is nearest, it is the described 2nd with reference to layer from the reference layer that described second signal line layer is nearest, therefore, the signal of described first signal line layer is back to source by described first with reference to layer, the signal of described second signal line layer is by described 2nd reference layer backflow source, namely the reference layer that described first signal line layer and described second signal line layer adopt is not on same lamination, therefore, the return flow path of the return flow path of the signal of described first signal line layer and the signal of described second signal line layer is separate, interference can not be caused between the signal of described first signal line layer and the signal of described second signal line layer, thus described in avoid the interference of the signal on the different laminations of described circuit card, the integrity of holding signal.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other variant according to these accompanying drawings.
Fig. 1 is the rhythmo structure schematic diagram of circuit card in first embodiment of the invention;
Fig. 2 is the rhythmo structure schematic diagram of circuit card in second embodiment of the invention;
Fig. 3 is the rhythmo structure schematic diagram of circuit card in third embodiment of the invention; And
Fig. 4 is the rhythmo structure schematic diagram of circuit card in fourth embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
In addition, the explanation of following embodiment is with reference to additional diagram, can in order to the specific embodiment of enforcement in order to illustration of invention. The direction term mentioned in the present invention, such as, " on ", D score, "front", "rear", "left", "right", " interior ", " outward ", " side " etc., it it is only the direction with reference to annexed drawings, therefore, the direction term used be in order to better, be illustrated more clearly in and understand the present invention, instead of instruction or infer the device referred to or element must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In describing the invention, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, it is possible to be fixedly connected with, it is also possible to be removably connect, or connect integratedly; Can be mechanically connected; Can be directly be connected, it is also possible to be indirectly connected by intermediary, it is possible to be the connection of two element internals. For the ordinary skill in the art, it is possible to particular case understands above-mentioned term concrete implication in the present invention.
In addition, in describing the invention, unless otherwise explanation, the implication of " multiple " is two or more. If occurring the term of " operation " in this specification sheets, it not only refers to independent operation, when cannot clearly distinguish with other operation, as long as the effect desired by this operation that can realize then is also included within this term. In addition, in this specification sheets with "-" numerical range that represents refer to using "-" before and after the scope that included as minimum value and maximum value of the numerical value recorded. In the accompanying drawings, the unit that structure is similar or identical represents with identical label.
Referring to Fig. 1, Fig. 1 is the rhythmo structure schematic diagram of circuit card in first embodiment of the invention. In first embodiment of the invention, described circuit card comprises the first signal line layer 100, second signal line layer 200, first reference layer 300 and the 2nd reference layer 400 that stacking is arranged. Described first signal line layer 100 and described second signal line layer 200 for transmission signal, such as, the signal that described first signal line layer 100 transmission current is big, the signal that described second signal line layer 200 transmission current is little. Described first is all arranged between described first signal line layer 100 and described second signal line layer 200 with reference to layer 400 with reference to layer 300 and the described 2nd. Described first is adjacent with described first signal line layer 100 with reference to layer 300, described 2nd is adjacent with described second signal line layer 200 with reference to layer 400, the signal transmitted by described first signal line layer 100 is back to source by described first with reference to layer 300, and the signal transmitted by described second signal line layer 200 is back to source by the described 2nd with reference to layer 400.Described source refers to the transmitter of signal. Such as, signal sends from source (i.e. signal transmitter) (not shown), transmit by described first signal line layer 100, and it is input to described signal receiver (not shown go out) via the input pin of signal receiver, after described signal receiver processes, transfer to first with reference to layer 300 from the ground terminal of described signal receiver, and it is back to described source (i.e. signal transmitter) from described first with reference to layer 300.
Specifically, described circuit card also comprises first medium layer 500, and described first medium layer 500 comprises the first relative surface 510 and the 2nd surface 520. Described first is arranged at described first surface 510 with reference to layer 300, and described first signal line layer 100 is arranged with described first with reference to layer 300 by second dielectric layer 600. Described 2nd is arranged at described 2nd surface 520 with reference to layer 400, and described second signal line layer 200 is arranged at the described 2nd with reference to layer 400 by the 3rd medium layer 700.
The material of described first signal line layer 100 and described second signal line layer 200 can be copper, silver or molybdenum aluminium alloy. The material of described first reference layer 300 and described 2nd reference layer 400 can be copper, silver, molybdenum aluminium alloy or tin.
Described first is arranged at whole described first surface 510 of described first medium layer 500 continuously with reference to layer 200, described 2nd is arranged at whole described 2nd surface 520 of described first medium layer 500 continuously with reference to layer, that is: described first reference layer 200 is covered in whole described first surface 510 of described first medium layer 500, and the described 2nd is covered in whole described 2nd surface 520 of described first medium layer 500 with reference to layer.
In one embodiment, the first signal line layer 100 can be PA power supply signals layer, and second signal line layer 200 can be sound signal layer.
In the present embodiment, owing to described first is adjacent with described first signal line layer with reference to layer, described 2nd is adjacent with described second signal line layer with reference to layer, therefore, it is described first with reference to layer from the reference layer that described first signal line layer is nearest, it is the described 2nd with reference to layer from the reference layer that described second signal line layer is nearest, therefore, the signal of described first signal line layer is back to source by described first with reference to layer, the signal of described second signal line layer is by described 2nd reference layer backflow source, namely the reference layer that described first signal line layer and described second signal line layer adopt is not on same lamination, therefore, the return flow path of the return flow path of the signal of described first signal line layer and the signal of described second signal line layer is separate, interference can not be caused between the signal of described first signal line layer and the signal of described second signal line layer, thus described in avoid the interference of the signal on the different laminations of described circuit card, the integrity of holding signal.
Referring to Fig. 2, Fig. 2 is the rhythmo structure schematic diagram of circuit card in second embodiment of the invention. the rhythmo structure of the circuit card described in the rhythmo structure of circuit card described in the present embodiment (the 2nd embodiment) and the first embodiment is substantially identical, difference is: in the present embodiment, described the first of described circuit card comprises the first reference section 310 and the 2nd reference section 320 with reference to layer 300, described first signal line layer 100 comprises many first signal wires 110 and many second signal lines 120, described first signal wire 110 drops in described first reference section 310 described first with reference to the orthographicprojection on layer 100, described second signal line 120 drops on described 2nd reference section 320 described first with reference to the orthographicprojection on layer 100.
In the present embodiment, the first reference section 310 and the 2nd reference section 320 is comprised with reference to layer 300 due to described first, described first signal line layer 100 comprises many first signal wires 110 and many second signal lines 120, and described first signal wire 110 drops in described first reference section 310 described first with reference to the orthographicprojection on layer 100, described second signal line 120 drops on described 2nd reference section 320 described first with reference to the orthographicprojection on layer 100, therefore, first reference section 310 and the 2nd reference section 320 are separate, the signal flowing through described first signal wire 110 is back to source by described first reference section 310, the signal flowing through described second signal line 120 is back to source by described 2nd reference section 320, thus the signal of described first signal wire 110 and the signal of described second signal line 120 can not be disturbed mutually.
Referring to Fig. 3, Fig. 3 is the rhythmo structure schematic diagram of circuit card in third embodiment of the invention. the rhythmo structure of the circuit card described in the rhythmo structure of circuit card described in the present embodiment (the 3rd embodiment) and the 2nd embodiment is substantially identical, difference is: in the present embodiment, the described 2nd of described circuit card comprises the 3rd reference section 410 and the 4th reference section 420 with reference to layer 400, described second signal line layer 200 comprises many articles of the 3rd signal wires 210 and many articles of the 4th signal wires 220, described 3rd signal wire 210 drops on described 3rd reference section 410 the described 2nd with reference to the orthographicprojection on layer 400, described 4th signal wire 220 drops on described 4th reference section 420 the described 2nd with reference to the orthographicprojection on layer 400. therefore, 3rd reference section 410 and the 4th reference section 420 are separate, the signal flowing through described 3rd signal wire 110 is back to source by described 3rd reference section 410, the signal flowing through described 4th signal wire 220 is back to source by described 4th reference section 420, thus the signal of described 3rd signal wire 210 and the signal of described second signal line 220 can not be disturbed mutually.
Referring to Fig. 4, Fig. 4 is the rhythmo structure schematic diagram of circuit card in fourth embodiment of the invention. the rhythmo structure of the circuit card described in the rhythmo structure of circuit card described in the present embodiment (the 4th embodiment) and the first embodiment is substantially identical, difference is: in the present embodiment, described the first of described circuit card comprises multiple 5th reference section 330 with reference to layer 300, described first signal line layer 100 comprises many articles of the 5th signal wires 130, 5th signal wire 130 described in every article drops in described 5th reference section 330 described first with reference to the orthographicprojection on layer 300, the width on the short limit of described 5th reference section 330 is greater than the live width of described 5th signal wire 130, the line that the length on the long limit of described 5th reference section 330 is greater than described 5th signal wire 130 is long,
Described 2nd comprises multiple 6th reference section 430 with reference to layer 400, described second signal line layer 200 comprises many articles of the 6th signal wires 230,6th signal wire 230 described in every article drops in described 6th reference section 430 the described 2nd with reference to the orthographicprojection on layer 400, the width on the short limit of described 6th reference section 430 is greater than the live width of described 6th signal wire 230, and the line that the length on the long limit of described 6th reference section 430 is greater than described 6th signal wire 230 is long.
Therefore, in the present embodiment, the signal on the 5th signal wire described in every article is all limited in the scope of described 5th reference section, separate, noiseless between the signal on the 5th signal wire described in every article;Signal on 6th signal wire described in every article is all limited in the scope of described 6th reference section, separate, noiseless between the signal on the 5th signal wire described in every article.
In embodiments of the invention, described circuit card is flexible PCB, rigid circuit board or soft or hard board.
The present invention also provides a kind of terminal, and described terminal comprises the circuit card described in above any embodiment or enforcement mode. Described terminal can be the consumer electronics products such as mobile phone, panel computer or televisor.
In the description of this specification sheets, at least one embodiment that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained in the present invention in conjunction with concrete feature, structure, material or feature that this embodiment or example describe or example. In this manual, the schematic representation of above-mentioned term is not necessarily referred to identical embodiment or example. And, the concrete feature of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Above-described enforcement mode, does not form the restriction to this technical scheme protection domain. The amendment done within any spirit in above-mentioned enforcement mode and principle, equivalent replace and improvement etc., all should be included within the protection domain of this technical scheme.
Claims (8)
1. a circuit card, it is characterized in that, described circuit card comprises the first signal line layer that stacking is arranged, second signal line layer, first with reference to layer and the 2nd reference layer, described first is all arranged between described first signal line layer and described second signal line layer with reference to layer and the described 2nd with reference to layer, described first reference layer is near described first signal line layer, described 2nd reference layer is near described second signal line layer, it is back to source by described first with reference to layer by the signal of described first signal line layer transmission, it is back to source by the described 2nd with reference to layer by the signal of described second signal line layer transmission.
2. circuit card as claimed in claim 1, it is characterized in that, described circuit card also comprises first medium layer, and described first medium layer comprises the first relative surface and the 2nd surface, described first is arranged at described first surface with reference to layer, and the described 2nd is arranged at described 2nd surface with reference to layer.
3. circuit card as claimed in claim 2, it is characterised in that, described first is arranged at whole described first surface continuously with reference to layer, and the described 2nd is arranged at whole described 2nd surface continuously with reference to layer.
4. circuit card as claimed in claim 2, it is characterized in that, described first comprises the first reference section and the 2nd reference section with reference to layer, described first signal line layer comprises many first signal wires and many second signal lines, described first signal wire drops in described first reference section described first with reference to the orthographicprojection on layer, and described second signal line drops on described 2nd reference section described first with reference to the orthographicprojection on layer.
5. circuit card as claimed in claim 4, it is characterized in that, described 2nd comprises the 3rd reference section and the 4th reference section with reference to layer, described second signal line layer comprises many articles of the 3rd signal wires and many articles of the 4th signal wires, described 3rd signal wire drops on described 3rd reference section the described 2nd with reference to the orthographicprojection on layer, and described 4th signal wire drops on described 4th reference section the described 2nd with reference to the orthographicprojection on layer.
6. circuit card as claimed in claim 2, it is characterized in that, described first comprises multiple 5th reference section with reference to layer, described first signal line layer comprises many articles of the 5th signal wires, 5th signal wire described in every article drops in described 5th reference section described first with reference to the orthographicprojection on layer, the width on the short limit of described 5th reference section is greater than the live width of described 5th signal wire, and the line that the length on the long limit of described 5th reference section is greater than described 5th signal wire is long.
7. circuit card as described in item as arbitrary in claim 1 to 6, it is characterised in that, described circuit card is flexible PCB, rigid circuit board or soft or hard board.
8. a terminal, it is characterised in that, described terminal comprises the circuit card described in the arbitrary item of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610105706.3A CN105682342B (en) | 2016-02-25 | 2016-02-25 | Circuit board and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610105706.3A CN105682342B (en) | 2016-02-25 | 2016-02-25 | Circuit board and terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105682342A true CN105682342A (en) | 2016-06-15 |
| CN105682342B CN105682342B (en) | 2018-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610105706.3A Active CN105682342B (en) | 2016-02-25 | 2016-02-25 | Circuit board and terminal |
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| Country | Link |
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| CN (1) | CN105682342B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160096A (en) * | 2016-07-28 | 2016-11-23 | 广东欧珀移动通信有限公司 | Mobile terminal and charging device thereof |
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| CN103889145A (en) * | 2014-01-09 | 2014-06-25 | 上海兆芯集成电路有限公司 | Circuit board and electronic assembly |
| JP2015103764A (en) * | 2013-11-28 | 2015-06-04 | 株式会社日立製作所 | Multi-chip module |
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| CN106160096A (en) * | 2016-07-28 | 2016-11-23 | 广东欧珀移动通信有限公司 | Mobile terminal and charging device thereof |
| CN106160096B (en) * | 2016-07-28 | 2019-02-15 | Oppo广东移动通信有限公司 | Mobile terminal and its charging unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105682342B (en) | 2018-12-11 |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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