CN109890130A - A kind of printed circuit board - Google Patents
A kind of printed circuit board Download PDFInfo
- Publication number
- CN109890130A CN109890130A CN201910249228.7A CN201910249228A CN109890130A CN 109890130 A CN109890130 A CN 109890130A CN 201910249228 A CN201910249228 A CN 201910249228A CN 109890130 A CN109890130 A CN 109890130A
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- CN
- China
- Prior art keywords
- hole
- difference device
- default
- printed circuit
- interstitital texture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a kind of printed circuit boards, comprising: default difference device to hole；Further include: the interstitital texture of the preset quantity between each pair of default difference device to hole is set, for filling corresponding default medium；The default medium being filled in interstitital texture, for changing the impedance of the corresponding default difference device to hole of interstitital texture at place according to respective dielectric constant；The present invention utilizes the default medium being filled in the interstitital texture between difference device to hole, adjust the through hole impedance of difference device to hole, can to avoid to difference device to hole itself via hole aperture, between weld tabs and signal via hole distance adjustment, influence of the through hole impedance design of difference device to hole to layout area can be reduced, keeps the circuit layout on printed circuit board more flexible.
Description
Technical field
The present invention relates to PCB design field, in particular to a kind of printed circuit board.
Background technique
With the development of modern society's science and technology, design of electronic products trend is particular about high-effect now, speed transmission year by year at
Long, so that the circuit design on printed circuit board (Printed circuit board, PCB) also more becomes complicated, signal is in addition to base
Outside this transmission line, there are also other kinds of transmission structures, such as are responsible for the signal via hole (signal wears a layer via hole) that signal wears layer,
Four signal via holes as shown in figure 1.When having good through hole impedance due to signal via hole, the reflection of signal can be greatly decreased,
Therefore the impedance design of signal via hole, is a considerable job.
In the prior art, the via hole resistance of the difference device to hole on printed circuit board (two intermediate signal via holes as shown in figure 1)
Anti- design method is often by distance between adjustment via hole aperture, weld tabs and signal via hole, to adjust difference device to hole
Through hole impedance often wastes the layout area on printed circuit board, so that in the case where high speed design is limited by space,
Configuration on printed circuit board is more difficult.Therefore, the through hole impedance for how reducing difference device to hole is designed to layout
The influence of area keeps the circuit layout on printed circuit board more flexible, is urgent problem now.
Summary of the invention
The object of the present invention is to provide a kind of printed circuit boards, are designed with reducing the through hole impedance of difference device to hole to range of distribution
Long-pending influence keeps the circuit layout on printed circuit board more flexible.
In order to solve the above technical problems, the present invention provides a kind of printed circuit board, comprising: default difference device to hole；Further include:
The interstitital texture of preset quantity between each pair of default difference device to hole is set, it is corresponding default for filling
Medium；
The default medium being filled in the interstitital texture, for changing place according to respective dielectric constant
The impedance of the corresponding default difference device to hole of interstitital texture.
Optionally, the interstitital texture is through-hole or groove.
Optionally, the interstitital texture is arranged on the circle center line connecting of each pair of default difference device to hole.
Optionally, the preset quantity is 1.
Optionally, the center of the circle center line connecting of each pair of default difference device to hole is arranged in the interstitital texture.
Optionally, the interstitital texture is specially using the center of the circle center line connecting of each pair of default difference device to hole as the center of circle
Circular hole.
A kind of printed circuit board provided by the present invention, comprising: default difference device to hole；Further include: setting is each pair of default
The interstitital texture of preset quantity between difference device to hole, for filling corresponding default medium；It is filled in pre- in interstitital texture
If medium, for changing the impedance of the corresponding default difference device to hole of interstitital texture at place according to respective dielectric constant；
As it can be seen that the present invention adjusts difference device to hole using the default medium being filled in the interstitital texture between difference device to hole
Through hole impedance, can to avoid to difference device to hole itself via hole aperture, between weld tabs and signal via hole distance adjustment, energy
Influence of the through hole impedance design of difference device to hole to layout area is enough reduced, the circuit layout on printed circuit board is made more to have bullet
Property.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural schematic diagram of the signal via hole of printed circuit board in the prior art；
Fig. 2 is a kind of structural schematic diagram of printed circuit board provided by the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another kind printed circuit board provided by the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to FIG. 2, Fig. 2 is a kind of structural schematic diagram of printed circuit board provided by the embodiment of the present invention.The circuit
Plate may include: default difference device to hole 10；Can also include:
The interstitital texture 20 of preset quantity between each pair of default difference device to hole 10 is set, it is corresponding default for filling
Medium 30；
The default medium 30 being filled in interstitital texture 20, for the filling according to respective dielectric constant, where changing
The impedance of the corresponding default difference device to hole 10 of structure 20.
Wherein, the default difference device to hole 10 in this implementation can be that respective two signal via holes are utilized in printed circuit board
Between the default medium 30 filled of the interstitital texture 20 that is arranged, adjust the difference device to hole of impedance (through hole impedance).Specifically, for
The particular number of default difference device to hole 10 in the present embodiment, i.e., adjust the difference of impedance through the above way in printed circuit board
The specific logarithm of device to hole, can be by designer according to practical scene and user demand self-setting, and the present embodiment does not do this
Any restrictions.
Likewise, to the specific structure of default difference device to hole 10 in this present embodiment, it can be by designer according to reality
With scene and user demand self-setting, can such as use and difference device to hole (such as Fig. 1 in printed circuit board in the prior art
A pair of of difference device to hole of centre) the same or similar structure, it is filled with as long as being provided between each pair of default difference device to hole 10
The interstitital texture 20 of corresponding default medium 30, the present embodiment does not do any restrictions to this.
It is understood that the purpose of the present embodiment can be to pass through the preset quantity between each pair of default difference device to hole 10
Interstitital texture 20 in the corresponding default medium 30 filled, so that the impedance of each pair of default difference device to hole 10 is met user demand.
Interstitital texture specifically, the specific setting to preset quantity in this present embodiment, i.e., between each pair of default difference device to hole 10
20 particular number such as can be arranged one between each pair of default difference device to hole 10 and be filled out by designer's self-setting
Structure 20 is filled, that is, preset quantity can be 1, as shown in figure 3, can be in the circle center line connecting of each pair of default difference device to hole 10
The circular hole (interstitital texture 20) of center setting, i.e. interstitital texture 20 can be the center to preset the circle center line connecting of difference device to hole 10
For the circular through hole of dot；Multiple interstitital textures 20 can also be set between each pair of default difference device to hole 10, it such as can be every
To the multiple interstitital textures 20 of the upper setting of the circle center line connecting of default difference device to hole 10, or in the circle of each pair of default difference device to hole 10
The two sides of heart line are correspondingly arranged multiple interstitital textures 20, such as can be in the two sides of the circle center line connecting of each pair of default difference device to hole 10
A circular hole (interstitital texture 20) is respectively set.As long as after filling corresponding default medium 30 in interstitital texture 20, thus it is possible to vary
The impedance of default difference device to hole 10, the present embodiment do not do any restrictions to this.
Likewise, the concrete type for interstitital texture 20 is arranged, can such as be can be set by designer's self-setting
For through-hole, it can the drilling of multi-layer board between default difference device to hole 10 in the printed circuit boards, by by default medium 30
It is filled into corresponding through-hole, changes the impedance of default difference device to hole 10；It may be set to be groove, it can in printed circuit board
In default difference device to hole 10 between multi-layer board grooving changed default by the way that default medium 30 is filled into corresponding groove
The impedance of difference device to hole 10.The present embodiment does not do any restrictions to this.
It is corresponding, the specific structure of interstitital texture 20 is arranged, i.e., the through-hole or groove between default difference device to hole 10
Concrete shape setting, can by designer's self-setting, such as can be set to circular through hole shown in Fig. 3 (circular hole) or circle
Connected in star, i.e., the default medium 30 after corresponding filling can be cylinder；It may be set to be such as square through hole or rectangular recessed
The other structures of slot, the present embodiment do not do any restrictions to this.
It should be noted that the specific setting of the interstitital texture 20 between each pair of default difference device to hole 10 in the present embodiment
The concrete type of the default medium 30 of position and corresponding filling, can by designer according to practical scene and user demand from
Row setting such as needs the impedance value changed correspondence to be configured, as long as each pair of default difference according to each pair of default difference device to hole 10
Divide in the interstitital texture 20 between device to hole 10 and fill by corresponding default medium 30, the present embodiment does not do any restrictions to this.Such as
Shown in Fig. 3, can the intermediate multi-layer board drilling of a pair of of difference device to hole (default difference device to hole 10) among Fig. 1, be arranged with this
Center to the circle center line connecting of difference device to hole is the circular hole (interstitital texture 20) in the center of circle, and in Jie of this circular hole filling impedance adjustment
Matter (default medium 30, such as medium with low dielectric constant or high dielectric constant substance), with using the dielectric constant of the medium, changing should
Impedance to difference device to hole.
Specifically, can also include in the prior art as shown in Figure 1 in printed circuit board provided by the present embodiment
Difference device to hole and other signal vias, the present embodiment do not do any restrictions to this.
In the present embodiment, the embodiment of the present invention utilizes the default medium being filled in the interstitital texture 20 between difference device to hole
30, adjust difference device to hole through hole impedance, can to avoid via hole aperture, weld tabs and the signal via hole to difference device to hole itself it
Between distance adjustment, the through hole impedance that can reduce difference device to hole designs influence to layout area, makes on printed circuit board
Circuit layout is more flexible.
A kind of printed circuit board provided by the present invention is described in detail above.Specific case used herein
Principle and implementation of the present invention are described, the above embodiments are only used to help understand side of the invention
Method and its core concept.It should be pointed out that for those skilled in the art, not departing from the principle of the invention
Under the premise of, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the claims in the present invention
In protection scope.
Claims (6)
1. a kind of printed circuit board, comprising: default difference device to hole；It is characterized by further comprising:
The interstitital texture of preset quantity between each pair of default difference device to hole is set, for filling corresponding default Jie
Matter；
The default medium being filled in the interstitital texture, for the filling according to respective dielectric constant, where changing
The impedance of the corresponding default difference device to hole of structure.
2. printed circuit board according to claim 1, which is characterized in that the interstitital texture is through-hole or groove.
3. printed circuit board according to claim 1, which is characterized in that the interstitital texture setting is each pair of described default
On the circle center line connecting of difference device to hole.
4. printed circuit board according to claim 3, which is characterized in that the preset quantity is 1.
5. printed circuit board according to claim 4, which is characterized in that the interstitital texture setting is each pair of described default
The center of the circle center line connecting of difference device to hole.
6. printed circuit board according to claim 5, which is characterized in that the interstitital texture is specially with each pair of described pre-
If the center of the circle center line connecting of difference device to hole is the circular hole in the center of circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910249228.7A CN109890130A (en) | 2019-03-29 | 2019-03-29 | A kind of printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910249228.7A CN109890130A (en) | 2019-03-29 | 2019-03-29 | A kind of printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109890130A true CN109890130A (en) | 2019-06-14 |
Family
ID=66935194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910249228.7A Pending CN109890130A (en) | 2019-03-29 | 2019-03-29 | A kind of printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109890130A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113163624A (en) * | 2021-04-28 | 2021-07-23 | 恒为科技（上海）股份有限公司 | Reverse pad design method for differential via hole and printed circuit board |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020027020A1 (en) * | 2000-09-07 | 2002-03-07 | International Business Machines Corporation | Through-hole structure and printed circuit board including the through-hole structure |
| CN2886982Y (en) * | 2006-04-26 | 2007-04-04 | 华为技术有限公司 | Pcb |
| US20110267783A1 (en) * | 2010-04-29 | 2011-11-03 | Mutnury Bhyrav M | Circuit board having holes to increase resonant frequency of via stubs |
| CN102291929A (en) * | 2011-06-24 | 2011-12-21 | 福建星网锐捷网络有限公司 | Printed circuit board and method for controlling impedance of through hole structure on same |
| CN102986307A (en) * | 2010-06-29 | 2013-03-20 | Fci公司 | Structured circuit board and method |
| US20130098671A1 (en) * | 2011-10-24 | 2013-04-25 | Aritharan Thurairajaratnam | Multiple layer printed circuit board |
| US20170181270A1 (en) * | 2013-10-10 | 2017-06-22 | Curtiss-Wright Controls, Inc. | Circuit board via configurations for high frequency signaling |
-
2019
- 2019-03-29 CN CN201910249228.7A patent/CN109890130A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020027020A1 (en) * | 2000-09-07 | 2002-03-07 | International Business Machines Corporation | Through-hole structure and printed circuit board including the through-hole structure |
| CN2886982Y (en) * | 2006-04-26 | 2007-04-04 | 华为技术有限公司 | Pcb |
| US20110267783A1 (en) * | 2010-04-29 | 2011-11-03 | Mutnury Bhyrav M | Circuit board having holes to increase resonant frequency of via stubs |
| CN102986307A (en) * | 2010-06-29 | 2013-03-20 | Fci公司 | Structured circuit board and method |
| CN102291929A (en) * | 2011-06-24 | 2011-12-21 | 福建星网锐捷网络有限公司 | Printed circuit board and method for controlling impedance of through hole structure on same |
| US20130098671A1 (en) * | 2011-10-24 | 2013-04-25 | Aritharan Thurairajaratnam | Multiple layer printed circuit board |
| US20170181270A1 (en) * | 2013-10-10 | 2017-06-22 | Curtiss-Wright Controls, Inc. | Circuit board via configurations for high frequency signaling |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113163624A (en) * | 2021-04-28 | 2021-07-23 | 恒为科技（上海）股份有限公司 | Reverse pad design method for differential via hole and printed circuit board |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190614 |
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| RJ01 | Rejection of invention patent application after publication |