WO2015096401A1 - 一种电路板及其制作方法 - Google Patents
一种电路板及其制作方法 Download PDFInfo
- Publication number
- WO2015096401A1 WO2015096401A1 PCT/CN2014/079463 CN2014079463W WO2015096401A1 WO 2015096401 A1 WO2015096401 A1 WO 2015096401A1 CN 2014079463 W CN2014079463 W CN 2014079463W WO 2015096401 A1 WO2015096401 A1 WO 2015096401A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal transmission
- unit
- circuit board
- units
- line
- 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.)
- Ceased
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Classifications
-
- 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
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/115—Via connections; Lands around holes or via connections
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/095—Conductive through-holes or vias
- H05K2201/09609—Via grid, i.e. two-dimensional array of vias or holes in a single plane
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/095—Conductive through-holes or vias
- H05K2201/09636—Details of adjacent, not connected vias
Definitions
- the quality of the signal transmitted on the printed circuit board directly affects the performance of the printed circuit board product.
- many signals need to be transmitted at multiple signal transmission layers.
- the signal needs to be transmitted in multiple signal transmission layers, it is necessary to provide a via hole between different signal transmission layers, and connect the signal transmission units located in different signal transmission layers through the via holes to continuously transmit signals.
- an embodiment of the present invention provides a circuit board including a first signal transmission layer and a second signal transmission layer, the circuit board further including:
- each of the first signal transmission units including at least one first signal transmission line;
- the second signal transmission layer corresponds to the plurality of second signal transmission units disposed by the plurality of first signal transmission units, and each of the second signal transmission units includes at least one second signal transmission line; corresponding to each a signal transmission unit corresponding to the provided via unit, wherein the number of the via holes in the via unit is the same as the number of the first signal transmission lines of the corresponding first signal transmission unit;
- first signal transmission unit and second signal transmission unit are formed by corresponding via units Electrical connection
- the via unit is arranged in at least two rows to form at least two parallel via rows; in a direction parallel to the via row, an offset is formed between adjacent via rows, and In the direction of the first signal transmission layer perpendicular to the row of vias, there is an overlap between adjacent rows of vias.
- the first signal transmission unit is connected to a signal transceiving unit
- the distance between the adjacent first via line and the second via line and the signal transceiving unit is small
- the number of via units included in the first via row is less than or equal to the number of via units included in the second via row having a larger distance from the signal transceiving unit.
- each of the first signal transmission units is composed of two first signal transmission lines, and in the offset direction, the first via unit of the second via line does not exceed the number The last via unit of a via line.
- the first line is the second via line in the offset direction a connection between the first via unit and the first via unit in the offset direction, the first ray being: the first via line
- the last via unit in the offset direction is the starting point, the same direction as the direction of the offset.
- each of the first signal transmission units is composed of a first signal transmission line, and in the offset direction, the first via unit of the second via line does not exceed the number The second via unit of a via line.
- the circuit board includes: a plurality of third signal transmission units disposed in the first signal transmission layer, a transmission rate of the third signal transmission unit is less than the predetermined transmission rate, and each of the third signal transmission units includes at least one third signal Transmission line;
- the first signal transmission layer is provided with a first region and a second region that are isolated from each other, the first signal transmission unit is disposed in the first region, and the third signal transmission unit is disposed in the second region .
- an embodiment of the present invention further provides a method for fabricating a circuit board, where the circuit board includes a first signal transmission layer and a second signal transmission layer, and the method for manufacturing the circuit board includes:
- first signal transmission unit forming step wherein the first signal transmission layer is provided with a plurality of first signal transmission units, each of the first signal transmission units including at least one first signal transmission line;
- each second signal transmission unit including at least one second Signal transmission line
- a via unit forming step corresponding to each of the first signal transmission units correspondingly disposed with a via unit, such that the corresponding first signal transmission unit and the second signal transmission unit form an electrical connection through the corresponding via unit, the via hole
- the number of vias in the cell is the same as the number of first signal transmission lines of the corresponding first signal transmission unit;
- the via unit is arranged in at least two rows to form at least two parallel via rows; in a direction parallel to the via row, an offset is formed between adjacent via rows, and In the direction of the first signal transmission layer perpendicular to the row of vias, there is an overlap between adjacent rows of vias.
- the offset between adjacent via lines is the same.
- the offset directions of any two adjacent via lines are the same.
- the first signal transmission unit is connected to a signal transceiving unit, and the distance between the adjacent first via line and the second via line and the signal transceiving unit is small.
- the number of via units included in the first via row is less than or equal to the number of via units included in the second via row having a larger distance from the signal transceiving unit.
- each of the first signal transmission units is composed of two first signal transmission lines, and in the offset direction, the first via unit of the second via line does not exceed The last via unit of the first via row.
- each of the first signal transmission units is composed of a first signal transmission line, and in the offset direction, the first via unit of the second via line does not exceed a second via unit of the first via row.
- the transmission rate of the first signal transmission unit is greater than or equal to a predetermined transmission rate
- the first signal transmission layer is provided with a first region and a second region separated from each other.
- the first signal transmission unit is disposed in the first area, and the manufacturing method of the circuit board further includes:
- the third signal transmission unit includes at least one third signal transmission line.
- the printed circuit board and the method of fabricating the same according to the embodiments of the present invention improve signal transmission quality.
- 1A-iC are schematic views showing various via lines
- Figure ID shows a schematic diagram of the offset of the via line in the offset direction
- Figure 2 is a view showing the distance between the via units and the distance between the via rows in the embodiment of the present invention
- FIG. 4 is an embodiment of the present invention
- Figures 5A and 5B are schematic diagrams of the parameters ⁇ and ⁇ for determining the offset when the via unit comprises one and two vias.
- a plurality of via holes on the circuit board are set in a row, and between the plurality of via lines It has a certain offset and a certain overlap, which improves the signal transmission quality.
- the signal transmission unit is a unit for transmitting signals composed of a signal transmission line, and the number of signal transmission lines in the signal unit depends on a signal format, and a high-speed differential signal such as V"by one, LVDS, Mini LVDS
- the equal signal transmission unit includes two signal transmission lines; and most of the control signals can be transmitted through one signal transmission line, and the signal transmission unit transmitting the control signal includes a signal transmission line, and Other signals (such as HDMI signals, DVI signals, etc.) need to be transmitted through more than three signal transmission lines, and the signal transmission unit that transmits these signals includes more signal transmission lines.
- the signal transmission unit is composed of at least one signal transmission line depending on the transmission signal.
- the via unit is a concept corresponding to the signal transmission unit, and each of the via units corresponds to one signal transmission unit, and includes at least one via hole, wherein the number of the via holes and the corresponding signal transmission unit The number of signal transmission lines is the same.
- the rows of vias are formed by at least one via unit arranged in a line.
- the via unit may include one via, and may include two or more vias
- the via row of the embodiment of the present invention is formed by at least one via unit arranged in a straight line. Indicates that the vias are arranged in a straight line.
- each of the via units includes two via holes, and the via units (portions surrounded by broken lines in the figure) constituting the via line are located in a straight line, and the via holes are not in a straight line.
- the via unit includes a plurality of obsolete cells
- the via cells that make up the pass are on a straight line
- the overpass can also be on a straight line, as shown in Figure IB.
- the via unit includes only one via
- the via unit and the same object are the same.
- the vias are also in a straight line, as shown in Figure 1C.
- via rows by at least one via unit arranged in a line indicates that the via units constituting the via line are located on a straight line, rather than forming a via line.
- the via unit forms a straight line. If a via unit forms a via line, a via unit cannot form a straight line.
- the offset between the via rows is defined as the distance between the first vias X and U in the via row in the direction of the offset X, ie, Figure 1. A in the middle.
- the distance between the matching via units distributed in the same via line defines the distance between the via units distributed in the same via line as the adjacent boundary distance of the via unit. As shown in Figure 2, dl l is the distance between the via units.
- d21 and d22 are the distances between the rows of vias.
- the circuit board of the embodiment of the present invention includes a first signal transmission layer and a second signal transmission layer, and the circuit board further includes:
- each of the first signal transmission units including at least one first signal transmission line;
- the second signal transmission layer corresponds to the plurality of second signal transmission units disposed by the plurality of first signal transmission units, and each of the second signal transmission units includes at least one second signal transmission line; corresponding to each a signal transmission unit corresponding to the provided via unit, wherein the number of the via holes in the via unit is the same as the number of the first signal transmission lines of the corresponding first signal transmission unit;
- Corresponding first signal transmission unit and second signal transmission unit are formed by corresponding via unit, and the via unit is arranged in at least two rows to form at least two parallel via rows; parallel to the via row In the direction of the adjacent via lines, an offset is formed between the adjacent via lines, and in the direction perpendicular to the line in the first signal transmission layer, there is an intersection between adjacent via lines The part of the stack.
- the adjacent via lines have a certain offset and a certain overlap. Improve the signal transmission quality, as detailed below.
- the plurality of via units are scientifically arranged in a row, so that the signal lines in the area are reasonably arranged in a certain layer of the PCB, thereby saving the wiring width, and there is no need for centralized processing due to excessive signal lines in the area, and mutual vias and The wiring is too close, and the reference plane of the signal line is shredded; or the signal is mixed with different kinds of signals, causing mutual interference.
- Adjacent via rows have a certain offset and a certain overlap, and the wiring space can be reasonably utilized.
- the vias inside a via row may or may not be in a straight line (such as the via row in FIG. 1A and the partial via row in FIG. 4), in the specific implementation of the present invention. In the example, it is preferred that all the vias inside a via row are in a straight line, which can better improve the signal transmission quality and improve the utilization of the wiring space.
- the arrangement of the via holes in the circuit board of the embodiment of the present invention will be exemplified as follows in the case where the via unit includes one via hole and includes two via holes.
- the via arrangement in the circuit board of the embodiment of the present invention is as shown in Fig. 3A. It can be found that there are a total of 9 vias, which are divided into 3 via rows 301, and each via row includes 3 via units 3011 (each via unit includes 1 via), which is parallel to the In the direction X of the row of holes, an offset is formed between adjacent rows of vias, and in the direction Y of the first signal transmission layer perpendicular to the row of the vias, adjacent via rows There is an overlap between the parts.
- the via arrangement in the circuit board of the embodiment of the present invention is as shown in Fig. 3B. It can be found that there are 18 vias in total, which are divided into 3 via rows 302, and each via row includes 3 via units 3021 (each via unit includes 2 vias), which is parallel to the In the direction XI of the row of holes, an offset is formed between adjacent rows of vias, and in the direction Y perpendicular to the row of the vias in the first signal transmission layer, adjacent vias are arranged There are overlapping parts between them.
- the above description is only taking a specific number of via holes and a specific via unit as an example.
- the number of via holes and the via unit may be other situations, which are different. for example.
- the offset between adjacent via rows may be the same, but may be different.
- FIGS. 3A and 3B there is still a bias between two adjacent via rows. The shifts are the same.
- the offset directions of any two adjacent via lines are the same, as shown in FIGS. 3A and 3B,
- the offset directions of any two adjacent via lines are the X direction in the figure.
- each first signal transmission unit is connected to the via unit, and the other end is connected to a signal transceiver unit.
- the first via row having a smaller distance from the signal transceiving unit includes a number of via units less than or equal to a larger distance from the signal transceiving unit The number of via units included in the second via row.
- the number control of the number of via units between different rows ensures that the signal lines are not affected by the excessive number of layers of the vias and the number of signal lines, and the wirings overlap each other or The number of signals of the same type that need to be wired in the same layer is small, and the mutual interference is reduced, so that the same area wiring is not too dense and crosstalk is generated.
- the via unit includes two vias as an example.
- a total of 10 via units are included, and each via unit includes 2 vias, which are divided into 3 via lines, and can be found.
- the lowermost via line is closest to the signal transceiver unit, the middle via line is the second, and the uppermost via line is the farthest from the signal transceiver unit.
- the number of via units included in the uppermost via line can be found.
- the maximum number is four, and the lowermost via row and the middle via row include three number of via cells.
- Signals are densely layered on the PCB, which can degrade the impedance of the area. For example, if the impedance value should be controlled at 50, when the layer is changed, or when the reference plane is suddenly shredded, the segment impedance value will reach 80, 90 or higher. This not only increases the occurrence of non-standard impedance values, but also reduces the specific resistance value of the wiring in the wiring, which hinders signal transmission. This rule reduces the path complexity of the signal passing through this dense area.
- the signal of the "disorder" of the transceiver unit is "split" to reduce the plane cutting area, so that the reference plane near the transceiver unit is as complete as possible, and the impedance discontinuous area is reduced, thereby reducing signal interference and improving signal quality.
- a signal transmission unit composed of a signal transmission line and a signal transmission unit composed of two signal transmission lines are further studied as follows for the signal transmission unit most frequently appearing in the circuit board.
- the corresponding via unit includes two via holes, in the offset direction, The first via unit of the second via row does not exceed the last via unit of the first via row.
- the first via unit of the middle via row does not exceed the last via unit of the lowermost via row, and the first via line of the uppermost row The via unit does not exceed the last via unit of the middle via row.
- the circuit board of the embodiment of the invention has better signal transmission quality, wherein: a first connection between the first via unit of the second via line in the offset direction and the last via unit of the first via line in the offset direction
- the first ray is: a ray having the same direction as the offset direction, starting from the last via unit in the offset direction of the first via row.
- the angle ⁇ is as follows.
- the via holes in the circuit board of the embodiment of the present invention have a total of 12 via holes, which are divided into two via rows, and each via row includes three via units. As shown in Figure 5, where:
- the first line is the line ⁇ in Figure 5 ⁇ , and the first line is the ray CD, and the angle ⁇ is the angle from ⁇ to CD.
- the corresponding via unit includes a via, and in the offset direction, the second via line One via unit does not exceed the second via unit of the first via row.
- the first via unit of the middle via row does not exceed the second via unit of the lowermost via row, and the uppermost via row A via unit does not exceed the second via unit of the intermediate via line.
- the angle ⁇ from the second line to the second ray satisfies: 90° ⁇ ⁇ ⁇ 145 °
- the second line is the first via unit of the second via line in the offset direction and the first via line in the offset direction a second line connecting the second via unit, wherein the second ray is: starting with the second via unit in the offset direction of the first via line, the direction is Rays with the same direction of offset.
- the via holes in the circuit board of the embodiment of the present invention have a total of two via holes, which are divided into two via lines, and each of the via lines includes six via holes. As shown in Figure 5, where:
- the second line is the line AB in Figure 5 ⁇ , and the second line is the ray CD, and the angle ⁇ is the angle from ⁇ to CD.
- the angle value reflects the relative position between the changed vias, which also reflects the trace state of the signal lines before and after the layer change. This angle value allows the signal lines to mutually affect other traces of the same kind or different types, and the layers in the layer and the layer after the layer are better routed, reducing signal line crosstalk caused by unreasonable traces, and better. Reasonable use of wiring space.
- a certain layer of the circuit board needs to receive or send various signals to the outside world, and the transmission rates of the signals are different.
- the setting of the above-mentioned via unit in the embodiment of the present invention may be only for
- the high-speed signal transmission unit can also be used only for the low-speed signal transmission unit, and can also be directed to the high-speed signal transmission unit and the low-speed signal transmission unit.
- the high-speed signal transmission unit and the low-speed signal transmission unit coexist, in the specific embodiment of the present invention, the high-speed signal transmission unit and the low-speed signal transmission unit are arranged in a sub-area, that is, the transmission rate of the first signal transmission unit is greater than or equal to At a predetermined transmission rate, the circuit board includes: a plurality of third signal transmission units disposed in the first signal transmission layer, wherein a transmission rate of the third signal transmission unit is less than the predetermined transmission rate, and each The third signal transmission unit includes at least one third signal transmission line;
- the first signal transmission layer is provided with a first region and a second region that are isolated from each other, the first signal transmission unit is disposed in the first region, and the third signal transmission unit is disposed in the second region .
- the signal change layer area is most likely to cause changes in the impedance value of the associated signal line, such as excessive signal in the same area.
- the domain layer is changed, which is easy to cause the reference plane to be shredded (the change of the surrounding environment of the signal will cause the ffi resistance value of the signal line to change), resulting in discontinuity of the signal line impedance, and the signal line impedance is poor in continuity, which will greatly affect the signal transmission. quality.
- High-speed differential signals need to follow their own differential line routing rules when the transmission distance is long. At the same time, it is necessary to ensure good impedance continuity and anti-interference, so as to avoid the deterioration of the eye quality of the signal, the eye diagram is closed, and the jitter is increased. Large, narrower eye width, so that the signal receiving end can not receive the signal correctly, resulting in signal loss or misjudgment;
- the power cable needs to increase its wiring width reasonably. At the same time, it needs to maintain good ffi resistance against continuity and anti-interference when the transmission distance is long, so as to avoid excessive voltage drop of the transmission line, large voltage loss of the transmission line, or power supply. stable.
- the high-speed and low-speed signals are reasonably distinguished by the regularization of the wiring, and the signal interference between the high-speed signal, the low-speed control signal, and the power source is reduced.
- this regular branch arrangement makes the same kind of frequency signals are connected to each other relatively smoothly, and saves wiring space; so that different signal lines are well distinguished and do not interfere with each other.
- each first signal transmission unit is composed of two first signal transmission lines
- the distance between adjacent vias inside the via unit only needs to be greater than or equal to the minimum pitch of the via according to the design specification.
- the distance dil between adjacent via units should ensure that at least one signal transmission line can pass through, and there is also a minimum design distance between the signal transmission line and the via hole.
- the minimum value of the dll should be as follows The sum of the two: The width of a signal transmission line;
- the minimum design distance between the signal transmission line and the via is 2 times.
- the minimum distance between adjacent rows of vias depends on the number X of passes through the signal transmission line, which is the sum of the following:
- X is 3 (in this case, three signal transmission lines can pass between adjacent via lines), otherwise X is 2 (in this case, adjacent via lines can pass between 2 signal transmission lines).
- each first signal transmission unit is composed of a first signal transmission line
- case 2 has only two parameters, the distance between adjacent via units distributed in the same via row, and the distance between adjacent via rows.
- the distance between adjacent via units distributed in the same via row and the distance between adjacent via rows may be designed to be the same, with a pitch to pass signals
- the number of transmission lines X is the standard, that is, the minimum value common to both is as follows: the sum of the three: the minimum design distance between the signal transmission line and the via;
- the minimum design distance between the signal transmission lines is twice; and after the via is determined, the layer distribution of the signal transmission lines is also involved.
- the outermost wiring i.e., the top or bottom layer.
- the basic signal specification should be met when wiring, and the integrity of the reference plane should be paid attention to, that is, the adjacent layer should have a complete ground plane, not be divided by other signals, and the power line can also be in the outermost layer, far away from the high-speed differential signal. Yes, and low-speed control signal wiring, mostly in the middle layer wiring.
- the embodiment of the present invention further provides a method for fabricating a circuit board, where the circuit board includes a first signal transmission layer and a second signal transmission layer, and the method for manufacturing the circuit board includes: a first signal transmission unit forming step, wherein the first signal transmission layer is provided with a plurality of first signal transmission units, each of the first signal transmission units including at least one first signal transmission line;
- each second signal transmission unit including at least one second Signal transmission line
- a via unit forming step corresponding to each of the first signal transmission units correspondingly disposed with a via unit, such that the corresponding first signal transmission unit and the second signal transmission unit form an electrical connection through the corresponding via unit, the via hole
- the number of vias in the cell is the same as the number of first signal transmission lines of the corresponding first signal transmission unit;
- the via unit is arranged in at least two rows to form at least two via rows;
- An offset is formed between adjacent rows of vias in a direction parallel to the row of vias, and adjacent in the direction perpendicular to the row of vias in the first signal transmission layer There are overlapping parts between the rows of holes.
- the offset between adjacent via lines is the same.
- the first signal transmission unit is connected to a signal transceiving unit, and the distance between the adjacent first via line and the second via line and the signal transceiving unit is small.
- the number of via units included in the first via row is less than or equal to the number of via units included in the second via row having a larger distance from the signal transceiving unit.
- each of the first signal transmission units is composed of two first signal transmission lines, and in the offset direction, the first via unit of the second via line does not exceed The last via unit of the first via row.
- each of the first signal transmission units is composed of a first signal transmission line, and in the offset direction, the first via unit of the second via line does not exceed a second via unit of the first via row.
- the transmission rate of the first signal transmission unit is greater than or equal to a predetermined transmission rate, and the first signal transmission layer is provided with a first region and a second region separated from each other.
- the first signal transmission unit is disposed in the first area, the circuit board
- the production method also includes:
- the third signal transmission unit includes at least one third signal transmission line.
- the main points of the circuit board of the embodiment of the present invention include the following aspects:
- a via line arranged in a "parallelogram" manner as shown in FIG. 3B is formed;
- the via hole is divided into three rows, and the via holes in the via row far from the signal transceiving unit are relatively more or the same with respect to the via row closer to the signal transceiving unit.
- the wiring of the high-speed signal transmission unit can be performed
- Wiring for the power line can be on the same layer as the high-speed signal transmission unit, and the high-speed signal transmission unit can exceed the predetermined distance;
- a via line arranged in a "parallelogram" manner as shown in FIG. 3A is formed; wherein the via hole is divided into three rows, relative to the via line row closer to the signal transceiving unit, The vias in the via line that are farther from the signal transceiving unit are relatively more or the same.
- the third floor is completely paved.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structure Of Printed Boards (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310726965.4 | 2013-12-25 | ||
| CN201310726965.4A CN103687292B (zh) | 2013-12-25 | 2013-12-25 | 一种电路板及其制作方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015096401A1 true WO2015096401A1 (zh) | 2015-07-02 |
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| PCT/CN2014/079463 Ceased WO2015096401A1 (zh) | 2013-12-25 | 2014-06-09 | 一种电路板及其制作方法 |
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| Country | Link |
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| CN (1) | CN103687292B (zh) |
| WO (1) | WO2015096401A1 (zh) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103687292B (zh) * | 2013-12-25 | 2016-11-23 | 京东方科技集团股份有限公司 | 一种电路板及其制作方法 |
| CN105072804B (zh) * | 2015-07-17 | 2018-10-19 | 小米科技有限责任公司 | 电路板及其制作方法 |
| CN106061101B (zh) * | 2016-06-28 | 2018-09-18 | 广东欧珀移动通信有限公司 | 信号线保护方法、装置、印制电路板及终端设备 |
| CN107657123B (zh) * | 2017-09-29 | 2021-06-29 | 郑州云海信息技术有限公司 | 一种返回路径过孔检视方法及系统 |
| CN112769448A (zh) * | 2020-12-31 | 2021-05-07 | 锐石创芯(深圳)科技有限公司 | 射频前端模组及通信终端 |
| CN113573472B (zh) * | 2021-09-23 | 2022-02-01 | 中兴通讯股份有限公司 | 印制电路板及信号传输系统 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102986307A (zh) * | 2010-06-29 | 2013-03-20 | Fci公司 | 结构化电路板和方法 |
| CN103687292A (zh) * | 2013-12-25 | 2014-03-26 | 京东方科技集团股份有限公司 | 一种电路板及其制作方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000031635A (ja) * | 1998-07-16 | 2000-01-28 | Sony Corp | スルーホール配置方法および半田付け評価方法および半田付け評価用テストボード装置 |
| CN102378485A (zh) * | 2010-08-26 | 2012-03-14 | 鸿富锦精密工业(深圳)有限公司 | 印刷电路板 |
-
2013
- 2013-12-25 CN CN201310726965.4A patent/CN103687292B/zh not_active Expired - Fee Related
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2014
- 2014-06-09 WO PCT/CN2014/079463 patent/WO2015096401A1/zh not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102986307A (zh) * | 2010-06-29 | 2013-03-20 | Fci公司 | 结构化电路板和方法 |
| CN103687292A (zh) * | 2013-12-25 | 2014-03-26 | 京东方科技集团股份有限公司 | 一种电路板及其制作方法 |
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| CN103687292A (zh) | 2014-03-26 |
| CN103687292B (zh) | 2016-11-23 |
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