CN108595839B - Method and system for generating compression joint back drilling via file based on Cadence skip - Google Patents
Method and system for generating compression joint back drilling via file based on Cadence skip Download PDFInfo
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- 238000005553 drilling Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000006835 compression Effects 0.000 title claims description 11
- 238000007906 compression Methods 0.000 title claims description 11
- 238000002788 crimping Methods 0.000 claims abstract description 53
- 238000003466 welding Methods 0.000 claims abstract description 4
- 241000251468 Actinopterygii Species 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 16
- 238000012790 confirmation Methods 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
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- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/39—Circuit design at the physical level
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Abstract
The invention provides a method and a system for generating a back-drilled hole file of a crimping piece based on Cadence skip, wherein the method comprises the following steps: s1, operating Cadence skip to collect the related information of the crimping piece; s2, inputting the position number of the crimping piece and the length information of the fisheye of the crimping piece; s3, automatically selecting a pressure welding piece differential pair via hole meeting the set condition to carry out additional back drilling; and S4, generating a crimp member back drilling file. The problem of a large amount of back drilling information need be confirmed to make a round trip when having solved the PCB mill and going on the back drilling, work load is great, and the design efficiency is lower is realized improving design efficiency, avoids the PCB board mill to leak when going on the back drilling easily and bore and the problem of boring more, improves the accuracy of engineer's design, shortens the ageing of information confirmation greatly, effectively improves the quality when PCB board mill beats the board.
Description
Technical Field
The invention relates to the field of PCB design, in particular to a method and a system for generating a compression joint back-drilled hole file based on Cadence skip.
Background
At the PCB design stage, the server board card has high requirements on the quality of the board card, the signal transmission efficiency and the quality, and then the selection of some materials is tested greatly, so that the cost, the signal transmission quality capability and some unstable factors during production need to be considered. In the current stage, the PCB is extremely high in wiring density and multiple in board layers, and in order to ensure that high-speed signals can realize more functions, data sharing and the like through interconnection of different devices, some high-quality crimping pieces are selected to improve the signal transmission capacity.
However, the problem of stub formation by the high-speed signal line cannot be avoided well when the multilayer board crimping part is wired, and back drilling of the differential pair via hole is required in the design. The back drilling is that the drill bit that is a bit bigger than the via hole internal diameter drills inwards in the outmost layer that does not connect until drilling off the disconnected layer, because the technology technical problem, can not drill this stub completely, through back drilling, the electrolytic dissolution can be controlled between 2mil-6mil generally. And the depth of the back drilling still needs to consider the fisheye length of the crimping piece, and a certain safety distance is needed during back drilling to ensure that the back drilling differential pair stump smaller signal has integrity.
The back drilling file that the instrument added the back drilling difference and generated the via hole does not relate to crimping piece flake length usually, leads to the PCB mill to make a round trip to confirm a large amount of back drilling information when carrying out the back drilling, and work load is great, and design efficiency is lower, still leaks easily when PCB mill back drilling and bores and many. Therefore, the fish eye length of the crimping piece needs to be considered, so that a wiring engineer finally cannot generate a back drilling file with accurate back drilling differential pair via holes, and unnecessary quality problems such as missed drilling and excessive drilling during PCB board punching can be caused.
Disclosure of Invention
The invention aims to provide a method and a system for generating a compression joint back-drilled via file based on Cadence drill, and aims to solve the problems that a large amount of back-drilled information needs to be confirmed back and forth when a PCB factory carries out back drilling, the workload is large, and the design efficiency is low, and improve the design efficiency and the design accuracy.
In order to achieve the technical purpose, the invention provides a method for generating a compression joint back-drilled hole file based on Cadence skip, which comprises the following steps:
s1, operating Cadence skip to collect the related information of the crimping piece;
s2, inputting the position number of the crimping piece and the length information of the fisheye of the crimping piece;
s3, automatically selecting a pressure welding piece differential pair via hole meeting the set condition to carry out additional back drilling;
and S4, generating a crimp member back drilling file.
Preferably, the acquisition crimping piece related information includes grasping backstill _ Max _ Pth _ Stub setting information.
Preferably, the Backdrill _ Max _ Pth _ Stub setting information is used to identify back drilling information.
Preferably, the crimp site number and crimp fisheye length information is used to capture stack thickness information.
Preferably, the operation of step S3 is as follows:
s301, automatically grabbing the length of the fisheye, and calculating the layer to be backdrilled;
and S302, adding a corresponding back drilling identification on the layer where the back drilling identification is located.
The invention also provides a system for generating the compression joint back-drilled hole file based on Cadence skip, which comprises the following steps:
the crimping piece information acquisition module is used for operating Cadence skip to acquire relevant information of the crimping piece;
the fisheye length input module is used for inputting the position number of the crimping piece and the length information of the fisheye of the crimping piece;
the back drilling adding module is used for automatically selecting the crimping piece difference meeting the set conditions to add back drilling to the via hole;
and the back drilling file generation module is used for generating a back drilling file of the crimping piece.
Preferably, the crimping piece information acquisition module comprises a setting information grabbing unit, which is used for grabbing backhaul _ Max _ Pth _ Stub setting information.
Preferably, the Backdrill _ Max _ Pth _ Stub setting information is used to identify back drilling information.
Preferably, the crimp site number and crimp fisheye length information is used to capture stack thickness information.
Preferably, the back drill adding module comprises:
the fisheye length grabbing unit is used for automatically grabbing the fisheye length and calculating the layer to be back drilled;
and the back drill identification adding unit is used for adding the corresponding back drill identification on the layer where the back drill identification is located.
The effect provided in the summary of the invention is only the effect of the embodiment, not all the effects of the invention, and one of the above technical solutions has the following advantages or beneficial effects:
compared with the prior art, the method has the advantages that the back drilling of the crimping part difference pair via hole meeting the set conditions is automatically selected according to the position number of the crimping part and the length information of the fisheye of the crimping part, the program is compiled, and the Skill program is executed, so that the back drilling file and the back drilling symbol of the crimping part back drilling difference pair via hole can be generated in one key, the problems that a large amount of back drilling information needs to be confirmed back and forth when a PCB factory carries out back drilling, the workload is large, the design efficiency is low are solved, the design efficiency is improved, the problems that drilling is easy to leak and multiple drilling are avoided when the PCB factory carries out back drilling, the accuracy of engineer design is improved, the timeliness of information confirmation is greatly shortened, and the quality of PCB factory when boards are punched is effectively improved.
Drawings
Fig. 1 is a flowchart of a method for generating a cable kill drill-based crimping piece backdrilled via file according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a PCB wiring layer structure provided in an embodiment of the present invention;
FIG. 3 is a schematic diagram of a PCB stack provided in an embodiment of the present invention;
FIG. 4 is a schematic diagram of a Skill backhoe indicator and a backhoe file interface according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a back drill indicator without using a drill and a back drill file interface provided in an embodiment of the present invention;
fig. 6 is a block diagram of a system for generating a cable kill drill-based crimping piece backdrilled via file according to an embodiment of the present invention.
Detailed Description
In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the invention.
The following describes a method and a system for generating a cable kill drill-based crimp member backdrilled via file according to embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the present invention discloses a method for generating a cable kill drill-based crimp piece backdrilled via file, which includes the following steps:
s1, operating Cadence skip to collect the related information of the crimping piece;
s2, inputting the position number of the crimping piece and the length information of the fisheye of the crimping piece;
s3, automatically selecting a pressure welding piece differential pair via hole meeting the set condition to carry out additional back drilling;
and S4, generating a crimp member back drilling file.
The secondary development language Skill provided by Cadence is an interactive high-level programming language based on a common artificial intelligence language Lisp, supports a set of grammars similar to a C language, supports all functions of the Lisp language, and can be used as the simplest tool language and a powerful programming language for developing any application. Skill can interact with the underlying system and also provides a rich interface to access Cadence tools.
As shown in fig. 2, the crimp member is on the TOP surface, and the wiring differential pairs are respectively taken out at the TOP, L3, and L5 layers. As shown in fig. 3, for example, with a 14-layer PCB stack, the routed differential pair swap stub is very large, requiring backdrilling at the routed differential pair swap pins.
At the beginning of the generation of the backdrilling via file, firstly, the related information of the crimping piece needs to be collected, the attribute information of the crimping piece in the software is read, the backsill _ Max _ Pth _ Stub setting is included, and by identifying the information, the ALLEGRO software can identify the backdrilling information.
The position number of the crimping piece and the length information of the fisheye are input into the system, for example, in the embodiment of the invention, the position number "J1" of the crimping piece is input, the fisheye length "35 mil" of the crimping piece is input, and the Skill automatically captures the lamination thickness information according to the position number and the fisheye length information.
Because the depth of the back drilling is closely related to the fisheye length information of the compression joint part, the length of the fisheye needs to be considered for the compression joint part, the back drilling layer surface is a Bottom-L6 layer cloth, the fisheye length is automatically grabbed by the Skill, then the layer surface to be back drilled is calculated, and a corresponding back drilling mark is added to the layer surface where the back drilling mark is to be carried out, as shown in FIG. 4, compared with the PCB which does not use the Skill to carry out the back drilling mark in FIG. 5, the method is more intuitive.
The method comprises the steps of programming, namely programming a program for capturing relevant information at the through hole of the differential pair of the compression joint part, then putting the programmed Skill program into a Skill menu, executing the Skill program, and adding the position of the through hole of the differential pair of the compression joint part needing backdrilling by one key and outputting a corresponding backdrilling file.
According to the method and the device, the crimp part difference meeting the set conditions is automatically selected to add the back drilling to the via hole according to the position number of the crimp part and the length information of the fisheye of the crimp part, the program is compiled, and the drill back drilling file and the back drilling symbol of the crimp part back drilling difference to the via hole can be generated by one key by executing the Skill program, so that the problems that a large amount of back drilling information needs to be confirmed back and forth when a PCB factory carries out back drilling, the workload is large, and the design efficiency is low are solved, the design efficiency is improved, the problems that drilling is easy to leak and multiple drills are avoided when the PCB factory carries out back drilling, the design accuracy of an engineer is improved, the timeliness of information confirmation is greatly shortened, and the quality of PCB factory in board drilling is effectively improved.
As shown in fig. 6, an embodiment of the present invention further discloses a system for generating a cable kill drill-back via file based on a crimping piece, which includes:
the crimping piece information acquisition module is used for operating Cadence skip to acquire relevant information of the crimping piece;
the fisheye length input module is used for inputting the position number of the crimping piece and the length information of the fisheye of the crimping piece;
the back drilling adding module is used for automatically selecting the crimping piece difference meeting the set conditions to add back drilling to the via hole;
and the back drilling file generation module is used for generating a back drilling file of the crimping piece.
The crimping piece information acquisition module includes:
and the setting information grabbing unit is used for grabbing the Backdrill _ Max _ Pth _ Stub setting information.
The back drill adding module comprises:
the fisheye length grabbing unit is used for automatically grabbing the fisheye length and calculating the layer to be back drilled;
and the back drill identification adding unit is used for adding the corresponding back drill identification on the layer where the back drill identification is located.
The Backdrill _ Max _ Pth _ Stub setting information is used to identify the back drill information.
The crimp member position number and crimp member fish eye length information are used to capture the stack thickness information.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A method for generating a back-drilled hole file of a compression joint based on Cadence skip is characterized by comprising the following steps:
s1, operating Cadence skip to collect the related information of the crimping piece;
s2, inputting the position number of the crimping piece and the length information of the fisheye of the crimping piece;
s3, automatically selecting a pressure welding piece differential pair via hole meeting the set condition to carry out additional back drilling; the specific operation is as follows:
s301, automatically grabbing the length of the fisheye, and calculating the layer to be backdrilled;
s302, adding a corresponding back drilling identification on the layer;
and S4, generating a crimp member back drilling file.
2. The generation method of the Cadence drill-based crimp member backdrilling via file according to claim 1, wherein the collecting crimp member related information comprises grabbing Backdrill _ Max _ Pth _ Stub setting information.
3. The generation method of Cadence sky-based crimp backdrilling via file as claimed in claim 2, wherein the Backdrill _ Max _ Pth _ Stub setting information is used for identifying backdrilling information.
4. The generation method of Cadence drill via file based crimp piece according to claim 1, wherein the crimp piece bit number and crimp piece fisheye length information are used to capture stack thickness information.
5. A Cadence Skill based crimp back-drilled via file generation system, comprising:
the crimping piece information acquisition module is used for operating Cadence skip to acquire relevant information of the crimping piece;
the fisheye length input module is used for inputting the position number of the crimping piece and the length information of the fisheye of the crimping piece;
the back drilling adding module is used for automatically selecting the crimping piece difference meeting the set conditions to add back drilling to the via hole; the back drill adding module comprises:
the fisheye length grabbing unit is used for automatically grabbing the fisheye length and calculating the layer to be back drilled;
the back drill identification adding unit is used for adding corresponding back drill identifications on the layer;
and the back drilling file generation module is used for generating a back drilling file of the crimping piece.
6. The generation system of Cadence sky-based crimping piece backdrilling via files as claimed in claim 5, wherein the crimping piece information acquisition module comprises a setting information grabbing unit for grabbing Backdrill _ Max _ Pth _ Stub setting information.
7. The Cadence sky-based crimp back-drilled via file generation system of claim 6, wherein the Backdrill _ Max _ Pth _ Stub setting information is used to identify back-drilled information.
8. The Cadence stick based crimp member backdrilling via file generation system of claim 5, wherein the crimp member bit number and crimp member fish eye length information are used to capture stack thickness information.
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| CN201810377352.7A CN108595839B (en) | 2018-04-25 | 2018-04-25 | Method and system for generating compression joint back drilling via file based on Cadence skip |
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| CN201810377352.7A CN108595839B (en) | 2018-04-25 | 2018-04-25 | Method and system for generating compression joint back drilling via file based on Cadence skip |
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| CN108595839B true CN108595839B (en) | 2021-11-02 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109492329B (en) * | 2018-12-03 | 2022-02-22 | 郑州云海信息技术有限公司 | Design method of back drilling device |
| CN111343785B (en) * | 2018-12-19 | 2023-05-09 | 佛山市顺德区顺达电脑厂有限公司 | Back drilling setting method of circuit board |
| CN110852033B (en) * | 2019-09-24 | 2024-04-09 | 惠州市金百泽电路科技有限公司 | Method for automatically creating via holes on PCB copper sheet |
| CN112328554B (en) * | 2020-11-23 | 2022-09-13 | 迈普通信技术股份有限公司 | Method and device for generating secondary drilling file, electronic equipment and storage medium |
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