CN112533371A - PCB glass layout method and PCB - Google Patents
PCB glass layout method and PCB Download PDFInfo
- Publication number
- CN112533371A CN112533371A CN202011148238.0A CN202011148238A CN112533371A CN 112533371 A CN112533371 A CN 112533371A CN 202011148238 A CN202011148238 A CN 202011148238A CN 112533371 A CN112533371 A CN 112533371A
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- CN
- China
- Prior art keywords
- pcb
- braided wire
- glass cloth
- direction braided
- horizontal 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.)
- Pending
Links
- 239000011521 glass Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000004744 fabric Substances 0.000 claims abstract description 37
- 238000013461 design Methods 0.000 claims abstract description 9
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 5
- 238000006467 substitution reaction Methods 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- 238000009940 knitting Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Images
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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0002—Apparatus or processes for manufacturing printed circuits for manufacturing artworks for printed circuits
Abstract
The invention provides a PCB glass cloth designing method and PCB glass cloth, wherein the PCB glass cloth comprises first direction braided wires and second direction braided wires, and the method comprises the following steps: and setting the angular bisector of the first direction braided wire and the second direction braided wire as a horizontal line, and setting the routing direction as a horizontal direction. The invention avoids the problem that the impedance of the PCB wiring is discontinuous and the signal quality is influenced under the condition of not changing the wiring direction, and can solve the problem of board waste and the problem of PCB design delay while effectively improving the signal quality of the PCB.
Description
Technical Field
The invention belongs to the technical field of PCBs (printed circuit boards), and particularly relates to a PCB glass layout method and a PCB.
Background
With the development of internet technology, big data covers various fields in life, and with the continuous expansion of data scale, higher requirements are put on the processing capacity and the processing efficiency of data, so that higher requirements are put on hardware equipment for processing and analyzing data. Servers and switches, which are the most important hardware devices for processing data, undertake most of the data processing. The reliability of the PCB board, which is used as a main component of the server and the switch, directly determines the performance and stability of the server and the switch, and along with the continuous improvement of the signal rate, the requirement on the design quality of the PCB board is more and more strict, which requires a PCB engineer to pay more attention to details and a processing method of high-speed and high-frequency signals in the design process.
The board is the most important component of the PCB board card, the quality of the board can directly determine the quality of the board card, particularly the quality of the high-speed board card, and if the selected board card is improper, the board card can be directly prevented from being normally used. Glass cloth and resin are two most basic raw materials for the plate, the grade of the plate is determined, and the weaving mode of the glass cloth directly influences the performance of the plate.
The most common weaving method for glass cloth used in the industry at present is to weave the glass cloth together in two directions of warp and weft to form a plate. Warp and weft are perpendicular to each other, and during the PCB design, most of engineers can select 0 to walk the line and carry out the PCB design, and the consequence that causes like this is that the PCB design of integrated circuit board is the same with the establishment direction of panel, and the line of PCB is striden in two warps or weft very easily to lead to the impedance of PCB line to appear discontinuously, influence signal quality.
Disclosure of Invention
In view of the above-mentioned shortcomings in the prior art, the present invention provides a method for designing a glass cloth for a PCB and a glass cloth for a PCB, so as to solve the above-mentioned technical problems.
The invention provides a method for designing a glass cloth of a PCB (printed circuit board), wherein the glass cloth of the PCB comprises a first direction braided wire and a second direction braided wire, and the method comprises the following steps:
and setting the angular bisector of the first direction braided wire and the second direction braided wire as a horizontal line, and setting the routing direction as a horizontal direction.
Further, the method further comprises:
the first direction braided wire and the second direction braided wire are set to be mutually vertical, and the included angle between the first direction braided wire and the second direction braided wire and the horizontal line is 45 degrees.
Further, the method further comprises:
and setting the included angle between the first direction braided wire and the second direction braided wire to be 60 degrees.
The invention also provides a glass cloth for a PCB, which comprises a first direction braided wire and a second direction braided wire, and the glass cloth for the PCB comprises:
the angle bisector of the first direction braided wire and the second direction braided wire is a horizontal line, and the routing direction of the PCB is the horizontal direction.
Further, the PCB glass cloth further comprises:
the first direction braided wire and the second direction braided wire are mutually vertical and both have an included angle of 45 degrees with the horizontal line.
Further, the PCB glass cloth further comprises:
the included angle between the first direction braided wire and the second direction braided wire is 60 degrees.
The beneficial effect of the invention is that,
according to the PCB glass cloth design method and the PCB glass cloth, the weaving direction of the PCB glass cloth is designed, so that the PCB glass cloth is not in the longitude and latitude direction any more, the problem that the impedance of PCB wiring is discontinuous and the signal quality is affected is avoided under the condition that the wiring direction is not changed, the PCB signal quality is effectively improved, and meanwhile, the problem of board waste can be solved, and the problem of PCB design delay can be solved.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a glass cloth of a PCB panel according to an embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
The embodiment provides a method for designing a glass cloth of a PCB, wherein the glass cloth of the PCB comprises a first direction braided wire and a second direction braided wire, and the method comprises the following steps:
and setting the angular bisector of the first direction braided wire and the second direction braided wire as a horizontal line, and setting the routing direction as a horizontal direction. The first direction braided wire and the second direction braided wire are set to be mutually vertical, and the included angle between the first direction braided wire and the second direction braided wire and the horizontal line is 45 degrees.
Example 2
The embodiment provides a method for designing a glass cloth of a PCB, wherein the glass cloth of the PCB comprises a first direction braided wire and a second direction braided wire, and the method comprises the following steps: and setting the angular bisector of the first direction braided wire and the second direction braided wire as a horizontal line, and setting the routing direction as a horizontal direction. The angle between the first direction knitting yarn and the second direction knitting yarn is set to 60 °.
Example 3
Referring to fig. 1, the present embodiment provides a glass cloth for a PCB, the glass cloth for a PCB includes a first direction woven wire and a second direction woven wire, and the glass cloth for a PCB includes:
the angular bisector of the first direction braided wire and the second direction braided wire is a horizontal line, and the routing direction of the PCB is the horizontal direction. The first direction braided wire and the second direction braided wire are mutually vertical and have an included angle of 45 degrees with the horizontal line.
Example 4
This embodiment provides a PCB board glass cloth, and the glass cloth of PCB board includes first direction braided wire and second direction braided wire, and PCB board glass cloth includes:
the angular bisector of the first direction braided wire and the second direction braided wire is a horizontal line, and the routing direction of the PCB is the horizontal direction. The angle between the first direction braided wire and the second direction braided wire is 60 degrees.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A PCB glass cloth layout design method is characterized in that glass cloth of a PCB comprises first direction braided wires and second direction braided wires, and the method comprises the following steps:
and setting the angular bisector of the first direction braided wire and the second direction braided wire as a horizontal line, and setting the routing direction as a horizontal direction.
2. The method of claim 1, further comprising:
the first direction braided wire and the second direction braided wire are set to be mutually vertical, and the included angle between the first direction braided wire and the second direction braided wire and the horizontal line is 45 degrees.
3. The method of claim 1, further comprising:
and setting the included angle between the first direction braided wire and the second direction braided wire to be 60 degrees.
4. The utility model provides a PCB board glass cloth, its characterized in that, the glass cloth of PCB board includes first direction braided wire and second direction braided wire, PCB board glass cloth includes:
the angle bisector of the first direction braided wire and the second direction braided wire is a horizontal line, and the routing direction of the PCB is the horizontal direction.
5. The PCB glass cloth of claim 4, further comprising:
the first direction braided wire and the second direction braided wire are mutually vertical and both have an included angle of 45 degrees with the horizontal line.
6. The PCB glass cloth of claim 4, further comprising:
the included angle between the first direction braided wire and the second direction braided wire is 60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011148238.0A CN112533371A (en) | 2020-10-23 | 2020-10-23 | PCB glass layout method and PCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011148238.0A CN112533371A (en) | 2020-10-23 | 2020-10-23 | PCB glass layout method and PCB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112533371A true CN112533371A (en) | 2021-03-19 |
Family
ID=74979649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011148238.0A Pending CN112533371A (en) | 2020-10-23 | 2020-10-23 | PCB glass layout method and PCB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112533371A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101491959A (en) * | 2009-03-04 | 2009-07-29 | 腾辉电子（苏州）有限公司 | Glass fiber fabric base clad copper foil basal plate and production method thereof |
| CN103813614A (en) * | 2012-11-07 | 2014-05-21 | 辉达公司 | PCB (Printed Circuit Board), core plate used for manufacturing PCB and method for manufacturing PCB |
-
2020
- 2020-10-23 CN CN202011148238.0A patent/CN112533371A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101491959A (en) * | 2009-03-04 | 2009-07-29 | 腾辉电子（苏州）有限公司 | Glass fiber fabric base clad copper foil basal plate and production method thereof |
| CN103813614A (en) * | 2012-11-07 | 2014-05-21 | 辉达公司 | PCB (Printed Circuit Board), core plate used for manufacturing PCB and method for manufacturing PCB |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210319 |