WO2022001132A1 - Procédé et appareil d'inspection de routage pour carte de circuit imprimé, et support de stockage lisible par ordinateur - Google Patents

Procédé et appareil d'inspection de routage pour carte de circuit imprimé, et support de stockage lisible par ordinateur Download PDF

Info

Publication number
WO2022001132A1
WO2022001132A1 PCT/CN2021/076935 CN2021076935W WO2022001132A1 WO 2022001132 A1 WO2022001132 A1 WO 2022001132A1 CN 2021076935 W CN2021076935 W CN 2021076935W WO 2022001132 A1 WO2022001132 A1 WO 2022001132A1
Authority
WO
WIPO (PCT)
Prior art keywords
line segment
target
target line
segment
winding
Prior art date
Application number
PCT/CN2021/076935
Other languages
English (en)
Chinese (zh)
Inventor
付深圳
Original Assignee
苏州浪潮智能科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 苏州浪潮智能科技有限公司 filed Critical 苏州浪潮智能科技有限公司
Publication of WO2022001132A1 publication Critical patent/WO2022001132A1/fr

Links

Images

Classifications

    • 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
    • G06F30/398—Design verification or optimisation, e.g. using design rule check [DRC], layout versus schematics [LVS] or finite element methods [FEM]
    • 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
    • G06F30/394—Routing
    • G06F30/3947—Routing global
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2115/00—Details relating to the type of the circuit
    • G06F2115/12—Printed circuit boards [PCB] or multi-chip modules [MCM]

Definitions

  • the present application relates to the technical field of printed circuit board design, and in particular, to a method and device for detecting traces of printed circuit boards, and a computer-readable storage medium.
  • PCB printed Circuit Board, printed circuit board or printed circuit board
  • Cadence as the most widely used software in the industry, not only has powerful functions and multiple Supported by related software, it also provides an open secondary development interface and a relatively complete development language library. Users can conduct secondary development according to their own needs. Skill language is a high-level programming language built in Cadence software based on C language and LISP language. Cadence provides rich interactive functions for skill language. Studying skill language and then writing tools can greatly improve work efficiency.
  • the present application provides a wiring detection method, device and computer-readable storage medium for a printed circuit board, which solves the drawbacks of manual manual detection of whether the differential line wiring rules meet the requirements in the related art, which is time-consuming, labor-intensive and error-prone, and effectively improves the Detection efficiency and detection accuracy of differential line traces in PCB boards.
  • One aspect of the embodiments of the present invention provides a method for detecting traces of a printed circuit board, including:
  • the target line segment group includes multiple groups of target line segment groups, and each group of target line segment groups uniquely corresponds to a convex position;
  • For each target line segment group determine the corresponding first target line segment according to the position information of the preset position on the parallel line segment in the current target line segment group, and determine the second target that is the same differential pair with the first target line segment Line segment; calculate the length value of the first target line segment, the vertical distance between the first target line segment and the second target line segment, as the winding of the target line corresponding to the current target line segment group parameter value; based on the winding parameter value and the standard value of the winding parameter, determine whether the target routing meets the preset routing rule.
  • the acquiring differential signals, and dividing and extracting all differential pair winding segments in the differential signal lines include:
  • All differential pair winding line segments in the differential signal line are divided and extracted based on the parent class corresponding to each line segment in the differential pair winding line segment.
  • the target line segment display attribute setting is performed on the acquired differential signal, so as to display the differential pair winding segment in the differential signal line, including:
  • the differential pair winding segment in the differential signal line is displayed, and the line width value of the differential pair winding segment is the first preset width value.
  • the determining the corresponding first target line segment according to the position information of the preset position on the parallel line segment in the current target line segment group includes:
  • the filter When a filter parameter setting request is received, the filter is automatically set to the line segment clineseg mode, so as to select the target line segment at the corresponding level;
  • the filter is invoked to select the first target line segment corresponding to the current target line segment group from the current layer.
  • the determining of the target line segment group at the convex position based on the position information of each line segment in the differential pair of winding line segments includes:
  • a target line segment group located at the same convex position is determined based on the start point coordinates and end point coordinates of each line segment in the differential pair of winding line segments, and each target line segment group constitutes a target line segment group;
  • the target line segment group includes a first oblique line segment, a parallel line segment , a second oblique line segment, the coordinates of the end point of the first oblique line segment are the same as the coordinates of the starting point of the parallel line segment, and the coordinates of the starting point of the second oblique line segment are the same as the coordinates of the end point of the parallel line segment;
  • the unique identification information and coordinate information of each line segment in each target line segment group are stored in a pre-created line segment record table, and the unique identification information and coordinate information of each line segment have a corresponding relationship.
  • storing the unique identification information and coordinate information of each line segment in each target line segment group in a pre-created line segment record table includes:
  • the target line segment groups belonging to the same parent class are stored in the same row of the line segment record table.
  • the calculating the length value of the first target alignment segment and the vertical distance between the first target alignment segment and the second target alignment segment includes:
  • the vertical distance value between the first target line segment and the second target line segment is calculated according to the coordinate value of the midpoint position of the first target line segment and the midpoint position coordinate value of the second target line segment .
  • a trace detection device for a printed circuit board including:
  • Signal acquisition module for acquiring differential signals
  • the line segment extraction module is used to divide and extract all differential pair winding segments in the differential signal line;
  • the convex line segment positioning module is used to determine the target line segment group at the convex position based on the position information of each line segment in the differential pair winding line segment;
  • the target line segment group includes multiple groups of target line segment groups, and each group of target line segment groups is unique corresponds to a raised position;
  • the winding detection module is used to determine, for each target line segment group, the corresponding first target line segment according to the position information of the preset position on the parallel line segment in the current target line segment group, and determine that the first target line segment is The second target line segment of the same differential pair; calculate the length value of the first target line segment, the vertical distance between the first target line segment and the second target line segment, as the current target line segment group Corresponds to the winding parameter value of the target routing; based on the routing parameter value and the standard value of the routing parameter, it is judged whether the target routing satisfies the preset routing rule.
  • An embodiment of the present invention further provides a device for detecting traces of a printed circuit board, including a processor, which is configured to implement the traces of the printed circuit board as described in any preceding item when the processor executes a computer program stored in a memory The steps of the detection method.
  • an embodiment of the present invention further provides a computer-readable storage medium, where a trace detection program of a printed circuit board is stored on the computer-readable storage medium, and the trace detection program of the printed circuit board is processed by a processor When executed, the steps of implementing the method for detecting traces of printed circuit boards as described in any one of the preceding items.
  • each line segment of all differential pair winding line segments in the differential signal line is divided and positioned, and the line segment located at the convex position is determined, so that two lines of the same differential pair can be calculated.
  • the distance of the line segment and the length of the raised parallel line segment, and the calculated line spacing and line segment length are compared with the standard values required by the corresponding winding rules, and then it can be realized whether the line segment at each raised position satisfies the winding requirements.
  • the wiring rules are automatically judged, and the entire detection process does not require manual participation, which solves the drawbacks of manual manual detection of whether the differential wiring rules meet the requirements, which is time-consuming, labor-intensive and error-prone, and effectively improves the detection efficiency of differential wiring in the PCB board. Detection accuracy.
  • the embodiments of the present invention also provide a corresponding implementation device and a computer-readable storage medium for the trace detection method of the printed circuit board, which further makes the method more practical.
  • the device and the computer-readable storage medium have corresponding advantages.
  • FIG. 1 is a schematic diagram of a PCB board wiring of an exemplary application scenario provided by an embodiment of the present invention
  • FIG. 2 is a schematic diagram of trace detection in an exemplary application scenario provided by an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method for detecting traces of a printed circuit board according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a line segment of an exemplary application scenario provided by an embodiment of the present invention.
  • FIG. 5 is a schematic diagram showing a winding line segment in a wiring segment provided by an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of segmenting and extracting a winding segment provided by an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a relationship between a parent class and a line segment provided by an embodiment of the present invention.
  • FIG. 8 is a schematic diagram showing the positioning and display of the first target routing segment according to an embodiment of the present invention.
  • FIG. 9 is a schematic flowchart of another method for detecting traces of a printed circuit board according to an embodiment of the present invention.
  • FIG. 10 is a structural diagram of a specific implementation of a trace detection device for a printed circuit board provided by an embodiment of the present invention.
  • Fig. 11 is a structural diagram of another specific implementation manner of a trace detection device for a printed circuit board provided by an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method for detecting traces on a printed circuit board provided by an embodiment of the present invention.
  • the embodiment of the present invention may include the following contents:
  • S301 Obtain a differential signal, and divide and extract all differential pair winding segments in the differential signal line.
  • S302 Determine the target line segment group located at the convex position based on the position information of each line segment in the differential pair winding line segment.
  • the differential pair winding segment in the embodiment of the present invention is the winding part of the differential signal line
  • the target segment is a part of the differential pair winding segment
  • the target segment group includes multiple target segment groups, and each target segment group uniquely corresponds to a protrusion Position
  • a set of target line segments includes a first oblique line, a parallel line segment and a second oblique line.
  • the end point of the first oblique line coincides with the starting point of the parallel line segment
  • the end point of the parallel line segment and the second oblique line The starting points of each line coincide with each other, so a target line segment group uniquely corresponding to the convex position can be determined according to the position information of each line segment.
  • S303 For each target line segment group, determine the corresponding first target line segment according to the position information of the preset position on the parallel line segment in the current target line segment group, and determine the second target that is the same differential pair as the first target line segment Line segment; calculate the length value of the first target line segment, the vertical distance between the first target line segment and the second target line segment, as the winding parameter value of the target line corresponding to the current target line segment group; based on the winding parameter value and the standard value of the routing parameters to determine whether the target routing meets the preset routing rules.
  • the winding rules are analyzed for each target line segment group in turn according to the method of S303.
  • the standard value of the winding parameter is the standard value of the winding parameter specified under the preset winding rules
  • the calculated value of the winding parameter is the actual parameter value of the routing part that is unique to the current target segment group. If the standard values of the line parameters are the same, it proves that the only corresponding routing part of the current target line segment group conforms to the preset routing rules. Some do not meet the preset routing rules.
  • each line segment of all differential pair winding line segments in the differential signal line is divided and positioned, and the line segment located at the convex position is determined, so that the two lines of the same differential pair can be calculated.
  • the distance of the line segment and the length of the raised parallel line segment, and the calculated line spacing and length of the line segment are compared with the standard values required by the corresponding winding rules, and then it can be realized whether the line segment of each raised position meets the requirements.
  • the wiring rules are automatically judged, and the whole detection process does not require manual participation, which solves the drawbacks of manual manual detection of whether the differential wiring rules meet the requirements, which is time-consuming, labor-intensive and error-prone, and effectively improves the detection efficiency of differential wiring in the PCB board. and detection accuracy.
  • step S101 there is no limitation on how to perform step S101.
  • an implementation of dividing and extracting differential pairs of winding line segments is given, which can more accurately and efficiently extract all the differential signals in the differential signal lines.
  • the following steps can be included:
  • A1 Obtain all differential signals of the server motherboard to be detected.
  • A2 According to the property setting request, set the target segment display property for the acquired differential signal to display the differential pair winding segment in the differential signal line.
  • Figure 4 shows the differential signal line
  • Figure 5 shows the differential pair winding line segment in the differential pair winding line segment
  • Figure 6 shows the extracted differential pair winding line segment.
  • Cadence software when receiving the attribute setting request sent by the user, it automatically adds the Diff_Uncoupled_Length attribute of the differential line uncoupled length to the differential signal, and sets the parameter value of the Diff_Uncoupled_Length attribute to the first preset width value, the first preset width value.
  • the width value is set to be the width value of the display line segment, and the first preset width value may be, for example, 1 mil.
  • A3 Divide and extract all differential pair winding segments in the differential signal line based on the parent class corresponding to each segment in the differential pair winding segment.
  • step S102 there is no limitation on how to perform step S102.
  • an implementation method for determining the target line segment group is provided, which can locate the target line segment more quickly and conveniently.
  • This embodiment of the present invention may include the following steps:
  • B2 Determine the target line segment group located at the same convex position based on the start point coordinates and end point coordinates of each line segment in the differential pair winding line segment, and each target line segment group constitutes a target line segment group.
  • the target line segment group includes a first oblique line segment, a parallel line segment, and a second oblique line segment.
  • the coordinates of the end point of the first oblique line segment are the same as the coordinates of the starting point of the parallel line segment, and the coordinates of the starting point of the second oblique line segment are the same as the coordinates of the end point of the parallel line segment.
  • B3 Store the unique identification information and coordinate information of each line segment in each target line segment group in a pre-created line segment record table, and the unique identification information and coordinate information of each line segment have a corresponding relationship.
  • each line segment in each target line segment group determined in step B2 can be recorded in a table, and a unique identification information can be set for each line segment in order to facilitate retrieval and query. Information All information for the required line segment can be retrieved in a table.
  • each target line segment group can also be divided according to the parent class to which each line segment belongs; the target line segment group belonging to the same parent class is stored in the same row of the line segment record table, as shown below:
  • table[parentGroups2] list((seg1seg2seg3)(seg1seg2seg3)%));
  • parentGroups represents the parent class, (seg1seg2seg3) constitutes a set of target segment groups, and seg1, seg2 and seg3 are the three segments included in the target segment group.
  • step S103 determines the corresponding first target line segment according to the position information of the preset position on the parallel line segment in the current target line segment group.
  • An implementation manner of determining the target alignment segment can locate the first target alignment segment more quickly and conveniently.
  • This embodiment of the present invention may include the following steps:
  • C2 Obtain the coordinate information of the midpoint of the parallel line segments in the current target line segment group.
  • each level for example, you can open the etch/top level, obtain the midpoint of the parallel line segment by obtaining the preset clineseg mode filter, and choose to add the midpoint of the parallel line segment to obtain the corresponding line segment at this point. , as shown in Figure 8. Since each differential pair has two traces, after determining one of the traces, net->diffpair can be obtained, the other differential trace can be found through the differential pair diffpair, and the line segment cline on the net can be obtained, that is, the first target. Another line segment corresponding to the line segment is called the second target line segment.
  • the length value w of the first target line segment can be calculated according to the starting point coordinate value and the end point coordinate value of the first target line segment; then according to the first target line segment
  • the vertical distance value s between the first target line segment and the second target line segment is obtained by calculating the coordinate value of the midpoint position of the line segment and the coordinate value of the midpoint position of the second target line segment.
  • Obtain the constraint settings of the differential pair that is, obtain the line spacing airgap and line width width of the differential pair that match the preset routing rules. According to the airgap and width, compare the calculated s and w respectively. If both are the same, the preset winding rules are met. If only one of them does not meet the winding rules, the winding rules cannot be met, and the non-compliance with the winding rules can be recorded. the bulge.
  • the present application also provides another method for detecting traces of printed circuit boards.
  • This embodiment of the present invention can be applied to Cadence software, for example, and may specifically include the following:
  • S901 Acquire all differential signals of the mainboard of the server to be detected.
  • S904 Divide and extract all differential pair winding segments in the differential signal line based on the parent class corresponding to each segment in the differential pair winding segment.
  • S906 Determine a target line segment group located at the same convex position based on the start point coordinates and end point coordinates of each line segment in the differential pair winding line segment, and each target line segment group constitutes a target line segment group.
  • S907 Store the unique identification information and coordinate information of each line segment in each target line segment group in a pre-created line segment record table, and the unique identification information and coordinate information of each line segment have a corresponding relationship.
  • S909 For each target line segment group, obtain the midpoint position coordinate information of the parallel line segments in the current target line segment group, and based on the midpoint position coordinate information, call a filter to select the first target walk corresponding to the current target line segment group from the current layer line segment.
  • S910 Determine a second target line segment that is the same differential pair as the first target line segment.
  • S911 Calculate the length value of the first target line segment and the vertical distance between the first target line segment and the second target line segment, as the winding parameter value of the target line corresponding to the current target line segment group.
  • S912 Acquire a standard value of the winding parameter, and judge whether the target routing meets the preset routing rule based on the value of the winding parameter and the standard value of the winding parameter.
  • the embodiment of the present invention solves the drawbacks of manual manual detection of whether the differential line wiring rules meet the requirements of the related art, which is time-consuming, labor-intensive and error-prone, and effectively improves the detection efficiency and detection accuracy of differential line routing in the PCB board.
  • the embodiment of the present invention also provides a corresponding device for a method for detecting a trace of a printed circuit board, which further makes the method more practical.
  • the device can be described from the perspective of functional modules and the perspective of hardware. The following is an introduction to the trace detection device of the printed circuit board provided by the embodiment of the present invention.
  • the trace detection device of the printed circuit board described below and the trace detection method of the printed circuit board described above can be referred to each other correspondingly.
  • FIG. 10 is a structural diagram of a trace detection device for a printed circuit board provided in an embodiment of the present invention in a specific implementation manner.
  • the device may include:
  • the signal acquisition module 101 is used to acquire the differential signal.
  • the line segment extraction module 102 is used for dividing and extracting all differential pair winding line segments in the differential signal line.
  • the convex line segment positioning module 103 is used to determine the target line segment group at the convex position based on the position information of each line segment in the differential pair winding line segment; the target line segment group includes multiple groups of target line segment groups, and each group of target line segment groups uniquely corresponds to a convex line start position.
  • the winding detection module 104 is used for each group of target line segments to determine the corresponding first target line segment according to the position information of the preset position on the parallel line segment in the current target line segment group, and determine that it is the same as the first target line segment
  • the second target line segment of the differential pair calculate the length value of the first target line segment, the vertical distance between the first target line segment and the second target line segment, as the winding parameter value of the target line corresponding to the current target line segment group ; Determine whether the target routing meets the preset routing rules based on the winding parameter value and the standard value of the winding parameter.
  • the line segment extraction module 102 may include:
  • the property setting sub-module is used to set the target segment display property of the acquired differential signal according to the property setting request, so as to display the differential pair winding segment in the differential signal line;
  • the segmentation and extraction sub-module is used to segment and extract all differential pair winding segments in the differential signal line based on the parent class corresponding to each segment in the differential pair winding segment.
  • the attribute setting sub-module may further include, for example:
  • the attribute assignment unit is used to automatically add the Diff_Uncoupled_Length attribute to the differential signal when receiving the attribute setting request, and set the parameter value of the Diff_Uncoupled_Length attribute to the first preset width value;
  • the display unit is configured to display the differential pair winding segment in the differential signal line when it is detected that the differential signal attribute setting is completed, and the line width value of the differential pair winding segment is a first preset width value.
  • the wire winding detection module 104 includes a target wire positioning sub-module, and the target wire positioning sub-module may include:
  • the filter setting unit is used to automatically set the filter to the clineseg mode when receiving the filter parameter setting request, so as to select the target line segment at the corresponding level;
  • a coordinate information obtaining unit used for obtaining the coordinate information of the midpoint position of the parallel line segments in the current target line segment group
  • the line segment selection unit is used to call the filter to select the first target line segment corresponding to the current target line segment group from the current layer based on the position coordinate information of the midpoint.
  • the target routing positioning sub-module may further include, for example:
  • an information acquisition unit used for acquiring the position coordinate information of the first target line segment and the second target line segment
  • a length calculation unit used for calculating the length value of the first target line segment according to the coordinate value of the starting point and the coordinate value of the end point of the first target line segment;
  • the distance calculation unit is configured to calculate the vertical distance value between the first target alignment segment and the second target alignment segment according to the midpoint position coordinate value of the first target alignment segment and the midpoint position coordinate value of the second target alignment segment.
  • the convex line segment positioning module 103 may further include, for example:
  • the starting point coordinate acquisition sub-module is used to obtain the starting point coordinates and end point coordinates of each line segment in the differential pair winding line segment;
  • the target line segment group generation sub-module is used to determine the target line segment group located at the same convex position based on the starting point coordinates and the end point coordinates of each line segment in the differential pair winding line segment, and each target line segment group constitutes a target line segment group;
  • the target line segment group includes the first For oblique line segment, parallel line segment, and second oblique line segment, the coordinates of the end point of the first oblique line segment are the same as the coordinates of the starting point of the parallel line segment, and the coordinates of the starting point of the second oblique line segment are the same as the coordinates of the end point of the parallel line segment;
  • the information recording submodule is used to store the unique identification information and coordinate information of each line segment in each target line segment group in the pre-created line segment record table, and the unique identification information and coordinate information of each line segment have a corresponding relationship.
  • the information recording submodule may include:
  • the division unit is used to divide each target line segment group according to the parent class to which each line segment belongs;
  • the record unit is used to store the target segment group belonging to the same parent class in the same row of the segment record table.
  • each functional module of the trace detection device for a printed circuit board can be specifically implemented according to the method in the above method embodiment, and the specific implementation process can refer to the relevant description of the above method embodiment, which is not described here. Repeat.
  • the embodiment of the present invention solves the drawbacks of manual manual detection of whether the differential line wiring rules meet the requirements of the related art, which is time-consuming, labor-intensive and error-prone, and effectively improves the detection efficiency and detection accuracy of differential line routing in the PCB board.
  • FIG. 11 is a structural diagram of another printed circuit board trace detection device according to an embodiment of the present application.
  • the apparatus includes a memory 110 for storing computer programs;
  • the processor 111 is configured to implement the steps of the method for detecting traces of a printed circuit board as mentioned in any of the foregoing embodiments when executing the computer program.
  • the processor 111 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like.
  • the processor 111 can use at least one hardware form among DSP (Digital Signal Processing, digital signal processing), FPGA (Field-Programmable Gate Array, field programmable gate array), PLA (Programmable Logic Array, programmable logic array) accomplish.
  • the processor 111 may also include a main processor and a coprocessor.
  • the main processor is a processor used to process data in the wake-up state, also called CPU (Central Processing Unit, central processing unit); the coprocessor is A low-power processor for processing data in a standby state.
  • the processor 111 may be integrated with a GPU (Graphics Processing Unit, image processor), and the GPU is used for rendering and drawing the content that needs to be displayed on the display screen.
  • the processor 111 may further include an AI (Artificial Intelligence, artificial intelligence) processor, where the AI processor is used to process computing operations related to machine learning.
  • AI Artificial Intelligence, artificial intelligence
  • Memory 110 may include one or more computer-readable storage media, which may be non-transitory. Memory 110 may also include high-speed random access memory, as well as non-volatile memory, such as one or more disk storage devices, flash storage devices. In this embodiment, the memory 110 is at least used to store the following computer program 1101 , wherein, after the computer program is loaded and executed by the processor 111 , it can realize the related information of the trace detection method of the printed circuit board disclosed in any of the foregoing embodiments. step. In addition, the resources stored in the memory 110 may also include an operating system 1102, data 1103, etc., and the storage mode may be short-term storage or permanent storage.
  • the operating system 1102 may include Windows, Unix, Linux, and the like.
  • the data 1103 may include, but is not limited to, data corresponding to the test results, and the like.
  • the trace detection device of the printed circuit board may further include a display screen 112 , an input/output interface 113 , a communication interface 114 , a power supply 115 and a communication bus 116 .
  • FIG. 11 does not constitute a limitation on the trace detection device of the printed circuit board, and may include more or less components than the one shown, such as the sensor 117 .
  • each functional module of the trace detection device for a printed circuit board can be specifically implemented according to the method in the above method embodiment, and the specific implementation process can refer to the relevant description of the above method embodiment, which is not described here. Repeat.
  • the embodiment of the present invention solves the drawbacks of manual manual detection of whether the differential line wiring rules meet the requirements of the related art, which is time-consuming, labor-intensive and error-prone, and effectively improves the detection efficiency and detection accuracy of differential line routing in the PCB board.
  • the trace detection method of the printed circuit board in the above embodiment is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , to execute all or part of the steps of the methods in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), electrically erasable programmable ROM, registers, hard disks, programmable Various media that can store program codes, such as removable disks, CD-ROMs, magnetic disks, or optical disks.
  • an embodiment of the present invention further provides a computer-readable storage medium, which stores a trace detection program of a printed circuit board, and the trace detection program of the printed circuit board is executed as any one of the above when executed by a processor. For example, the steps of the trace detection method of the printed circuit board.
  • the embodiment of the present invention solves the drawbacks of manual manual detection of whether the differential line wiring rules meet the requirements of the related art, which is time-consuming, labor-intensive and error-prone, and effectively improves the detection efficiency and detection accuracy of differential line routing in the PCB board.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Evolutionary Computation (AREA)
  • Geometry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

L'invention concerne un procédé et un appareil d'inspection de routage pour une carte de circuit imprimé, et un support de stockage lisible par ordinateur. Le procédé comprend les étapes suivantes : segmenter et extraire toutes les paires différentielles de segments de ligne d'enroulement dans des lignes de signal différentielles ; déterminer, en fonction d'informations de position de chaque segment de ligne dans les paires différentielles de segments de ligne d'enroulement, une pluralité de groupes de segments de ligne cibles situés à des positions convexes, pour chaque groupe de segments de ligne cible, déterminer un premier segment de routage cible correspondant selon des informations de position de positions prédéfinies sur des segments de ligne parallèles dans le groupe de segments de ligne cible actuel, et déterminer un deuxième segment de routage cible qui forme la même paire différentielle avec le premier segment de routage cible ; calculer une valeur de longueur du premier segment de routage cible et une distance verticale entre le premier segment de routage cible et le deuxième segment de routage cible pour servir de valeurs de paramètre d'enroulement du groupe de segments de ligne cible actuel correspondant au routage cible ; et déterminer, en fonction des valeurs de paramètre d'enroulement et de valeurs standard de paramètre d'enroulement, si le routage cible respecte des règles d'enroulement prédéfinies. La présente invention résout les problèmes d'opérations fastidieuses, demandant beaucoup de main d'œuvre et sujettes aux erreurs dans l'état de la technique lors de l'inspection manuelle du respect des règles de routage de lignes différentielles.
PCT/CN2021/076935 2020-06-29 2021-02-19 Procédé et appareil d'inspection de routage pour carte de circuit imprimé, et support de stockage lisible par ordinateur WO2022001132A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010606040.6A CN111859847A (zh) 2020-06-29 2020-06-29 印制电路板的走线检测方法、装置及计算机可读存储介质
CN202010606040.6 2020-06-29

Publications (1)

Publication Number Publication Date
WO2022001132A1 true WO2022001132A1 (fr) 2022-01-06

Family

ID=72988213

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/076935 WO2022001132A1 (fr) 2020-06-29 2021-02-19 Procédé et appareil d'inspection de routage pour carte de circuit imprimé, et support de stockage lisible par ordinateur

Country Status (2)

Country Link
CN (1) CN111859847A (fr)
WO (1) WO2022001132A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115221833A (zh) * 2022-07-27 2022-10-21 苏州浪潮智能科技有限公司 一种pcb板布线排序方法、系统、装置及可读存储介质
CN115374747A (zh) * 2022-08-19 2022-11-22 本源科仪(成都)科技有限公司 构建空气桥图形的方法、系统、存储介质及电子设备
CN116070576A (zh) * 2023-01-28 2023-05-05 苏州浪潮智能科技有限公司 差分信号线线间距修改方法、装置、电子设备及存储介质
CN116306469A (zh) * 2023-05-22 2023-06-23 深圳前海深蕾半导体有限公司 模拟版图的金属走线方法、装置、设备及存储介质

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111859847A (zh) * 2020-06-29 2020-10-30 苏州浪潮智能科技有限公司 印制电路板的走线检测方法、装置及计算机可读存储介质
CN112395824B (zh) * 2020-11-26 2023-07-28 上海柏楚数控科技有限公司 走线检测方法、装置及设备、存储介质
CN112580294B (zh) * 2020-12-30 2023-12-19 芯和半导体科技（上海）股份有限公司 一种pcb版图的切割方法
CN113011123B (zh) * 2021-02-19 2023-02-28 山东英信计算机技术有限公司 一种差分信号线长度补偿方法、系统及装置
CN112949249B (zh) * 2021-02-20 2023-06-02 山东英信计算机技术有限公司 一种元件摆放位置的确定方法、系统及装置
CN113468833B (zh) * 2021-06-11 2024-02-09 山东英信计算机技术有限公司 一种原理图中元器件属性标记方法、装置、设备及介质
CN113673198B (zh) * 2021-08-22 2023-07-14 苏州浪潮智能科技有限公司 一种pcb中走线检查方法、系统、设备以及介质
CN113420527B (zh) 2021-08-25 2021-11-09 苏州浪潮智能科技有限公司 一种计算绕差分线等长的方法、装置、系统及存储介质
CN113947056B (zh) * 2021-10-29 2024-02-23 苏州浪潮智能科技有限公司 一种差分走线设计方法及差分线
CN115345116A (zh) * 2022-10-19 2022-11-15 深圳鸿芯微纳技术有限公司 一种芯片绕线检测方法、系统、计算机设备及存储介质
CN117688897B (zh) * 2024-01-31 2024-04-26 苏州元脑智能科技有限公司 差分信号线参数修改方法、装置、集成电路、设备及介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006010632A (ja) * 2004-06-29 2006-01-12 Sharp Corp プリント基板の差動配線検査方法、差動配線検査プログラム、差動配線検査装置
CN107194058A (zh) * 2017-05-19 2017-09-22 郑州云海信息技术有限公司 一种基于pcb上差分对分段等长自动化检查方法及系统
CN111291527A (zh) * 2020-01-15 2020-06-16 苏州浪潮智能科技有限公司 一种差分线间距检查方法、装置、设备及存储介质
CN111859847A (zh) * 2020-06-29 2020-10-30 苏州浪潮智能科技有限公司 印制电路板的走线检测方法、装置及计算机可读存储介质

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006010632A (ja) * 2004-06-29 2006-01-12 Sharp Corp プリント基板の差動配線検査方法、差動配線検査プログラム、差動配線検査装置
CN107194058A (zh) * 2017-05-19 2017-09-22 郑州云海信息技术有限公司 一种基于pcb上差分对分段等长自动化检查方法及系统
CN111291527A (zh) * 2020-01-15 2020-06-16 苏州浪潮智能科技有限公司 一种差分线间距检查方法、装置、设备及存储介质
CN111859847A (zh) * 2020-06-29 2020-10-30 苏州浪潮智能科技有限公司 印制电路板的走线检测方法、装置及计算机可读存储介质

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115221833A (zh) * 2022-07-27 2022-10-21 苏州浪潮智能科技有限公司 一种pcb板布线排序方法、系统、装置及可读存储介质
CN115221833B (zh) * 2022-07-27 2023-11-03 苏州浪潮智能科技有限公司 一种pcb板布线排序方法、系统、装置及可读存储介质
CN115374747A (zh) * 2022-08-19 2022-11-22 本源科仪(成都)科技有限公司 构建空气桥图形的方法、系统、存储介质及电子设备
CN116070576A (zh) * 2023-01-28 2023-05-05 苏州浪潮智能科技有限公司 差分信号线线间距修改方法、装置、电子设备及存储介质
CN116306469A (zh) * 2023-05-22 2023-06-23 深圳前海深蕾半导体有限公司 模拟版图的金属走线方法、装置、设备及存储介质
CN116306469B (zh) * 2023-05-22 2023-08-01 深圳前海深蕾半导体有限公司 模拟版图的金属走线方法、装置、设备及存储介质

Also Published As

Publication number Publication date
CN111859847A (zh) 2020-10-30

Similar Documents

Publication Publication Date Title
WO2022001132A1 (fr) Procédé et appareil d'inspection de routage pour carte de circuit imprimé, et support de stockage lisible par ordinateur
CN109871326A (zh) 一种脚本录制的方法和装置
JP2012133721A (ja) テストの網羅性を評価する装置及び方法
CN107451112B (zh) 表格工具数据检查方法、装置、终端设备及存储介质
US8522182B2 (en) Generation of an end point report for a timing simulation of an integrated circuit
CN114359590A (zh) Nft图像作品侵权检测方法、装置、及计算机存储介质
CN111309586A (zh) 一种命令测试方法、装置及其存储介质
CN110795464B (zh) 对象标记数据的字段校验方法、装置、终端及存储介质
CN109241485A (zh) 一种页面间跳转关系建立方法，及装置
CN115757150A (zh) 一种生产环境测试方法、装置、设备及存储介质
CN109656652B (zh) 网页图表绘制方法、装置、计算机设备和存储介质
CN109840212A (zh) 应用程序的功能测试方法、装置、设备及可读存储介质
CN115081389B (zh) 一种印刷电路板走线检查方法、装置、设备、存储介质
CN115269502A (zh) 投标文件处理方法、设备及存储介质
CN109343844A (zh) 一种基于Flex票据数据对比纠正的方法
JP5075695B2 (ja) プロパティ記述のカバレッジ測定装置及びプログラム
CN107609401A (zh) 自动测试方法及装置
CN109710651B (zh) 数据类型识别方法及装置
CN112597040A (zh) 一种界面自动化测试方法、装置及电子设备
CN112506565A (zh) 处理器微体系结构事件的重要性确定方法、介质和设备
CN114282586A (zh) 一种数据标注方法、系统和电子设备
CN112003647A (zh) 一种回收光猫的检测方法、装置、设备及存储介质
CN116861829B (zh) 用于定位逻辑系统设计中错误的方法、电子设备
CN109901054A (zh) 定浮点转换电路的功能覆盖率模型测试点提取方法及系统
CN114169287B (zh) 生成验证环境的连接示意图的方法、电子设备及存储介质

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21832572

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21832572

Country of ref document: EP

Kind code of ref document: A1