WO2019196188A1

WO2019196188A1 - Method and system for creating steel mesh library on basis of eda package library, and storage medium and terminal

Info

Publication number: WO2019196188A1
Application number: PCT/CN2018/090381
Authority: WO
Inventors: 钱胜杰; 瞿永建; 刘丰收
Original assignee: 上海望友信息科技有限公司
Priority date: 2018-04-11
Filing date: 2018-06-08
Publication date: 2019-10-17
Also published as: CN108829907A

Abstract

A method and system for creating a steel mesh library on the basis of an EDA package library, and a storage medium and a terminal. The method comprises the following steps: obtaining bonding pad graph data in an EDA package library (S1); creating steel mesh opening graph data on the basis of the bonding pad graph data and a preset opening algorithm (S2); and storing the steel mesh opening graph data (S3). According to the method and system for creating a steel mesh library on the basis of an EDA package library, and the storage medium and the terminal, a steel mesh library is created according to an EDA package library, and therefore, the design of a steel mesh can be automatically completed, and steel mesh opening preparation can be advanced to a design stage.

Description

Method and system for creating steel mesh library based on EDA package library, storage medium and terminal

Technical field

The present invention relates to the technical field of data processing, and in particular, to a method and system for creating a steel mesh library based on an EDA package library, a storage medium and a terminal.

Background technique

Surface Mounted Devices (SMD) is one of the Surface Mount Technology (SMT) components. One of the most important aspects of the SMD component assembly process is the stencil design. Stencil, or SMT Stencil, is an SMT-specific mold whose primary function is to help deposit solder paste in order to transfer an accurate amount of solder paste to an exact location on an empty PCB.

In the prior art, stencil design has been slowly taken seriously by the industry as an important part of the assembly process of SMD components. As the pace of automation advances, traditional stencil designs move from manual or semi-automatic designs to automated designs.

The traditional stencil design is to design the stencil opening at the same time as the SMT program is made after the PCB layout is completed. The method is insufficient as follows:

(1) The time node of the stencil design is delayed, resulting in a longer design cycle;

(2) The way of opening in the stencil design does not form a reusable library, resulting in repetitive design and low efficiency;

(3) The experience of steel mesh designers is very high.

Summary of the invention

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a method and system for creating a steel mesh library based on an EDA package library, a storage medium and a terminal, and a steel mesh library according to the EDA package library, thereby being able to be automated Complete the design of the stencil and prepare the stencil opening to the design stage.

To achieve the above and other related objects, the present invention provides a method for creating a steel mesh library based on an EDA package library, comprising the steps of: acquiring land pattern data in an EDA package library; and based on the land pattern data and presets The opening algorithm creates stencil opening graphic data; and saves the stencil opening graphic data.

In an embodiment of the invention, the land pattern data includes a length and a width of the pad.

In an embodiment of the invention, the stencil opening pattern data is saved to the EDA package library or the pad steel mesh relation database.

In an embodiment of the invention, the stencil opening pattern data includes a package name, land pattern data, and stencil opening pattern data.

Correspondingly, the present invention provides a system for creating a steel mesh library based on an EDA package library, including an acquisition module, a creation module, and a storage module;

The obtaining module is configured to acquire pad graphic data in an EDA package library;

The creating module is configured to create stencil opening graphic data based on the land pattern data and a preset opening algorithm;

The saving module is configured to save the stencil opening graphic data.

In an embodiment of the invention, the saving module saves the stencil opening pattern data to the EDA package library or the pad steel mesh relation database.

The present invention provides a storage medium having stored thereon a computer program that, when executed by a processor, implements the above-described method of creating a steel mesh library based on an EDA package library.

Finally, the present invention provides a terminal, including: a processor and a memory;

The memory is for storing a computer program;

The processor is configured to execute the computer program stored in the memory to cause the terminal to execute the method for creating a steel mesh library based on the EDA package library.

As described above, the method and system for creating a steel mesh library based on the EDA package library of the present invention, the storage medium and the terminal have the following beneficial effects:

(1) Create a steel mesh library according to the EDA package library, and automatically obtain the stencil openings of all PCBs by using the relationship between the image data of the stencil opening and the package name, thereby automatically completing the design of the steel mesh;

(2) Advance the stencil opening preparation to the design stage, rather than in the manufacturing stage, greatly shortening the design cycle;

(3) Since the components on any PCB will use the pad package in the wiring package library, no stencil opening will be missed, so that the steel mesh library can be more systematically maintained.

DRAWINGS

1 is a flow chart showing an embodiment of a method for creating a steel mesh library based on an EDA package library of the present invention;

2 is a schematic structural view showing a system for creating a steel mesh library based on an EDA package library according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a terminal according to an embodiment of the present invention.

Component label description

21 Get module

22 Creating modules

23 Save module

31 processor

32 memory

detailed description

The embodiments of the present invention are described below by way of specific examples, and those skilled in the art can readily understand other advantages and effects of the present invention from the disclosure of the present disclosure. The present invention may be embodied or applied in various other specific embodiments, and various modifications and changes can be made without departing from the spirit and scope of the invention. It should be noted that the features in the following embodiments and embodiments may be combined with each other without conflict.

It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention in a schematic manner, and only the components related to the present invention are shown in the drawings, rather than the number and shape of components in actual implementation. Dimensional drawing, the actual type of implementation of each component's type, number and proportion can be a random change, and its component layout can be more complicated.

The method and system for creating a steel mesh library based on the EDA package library, the storage medium and the terminal realize the creation of the steel mesh library based on the EDA package library, thereby automatically completing the design of the steel mesh, and preparing the steel mesh opening to advance to the design The stage greatly shortens the design time.

As shown in FIG. 1, in an embodiment, a method for creating a steel mesh library based on an EDA package library of the present invention includes the following steps:

Step S1: Acquire pad pattern data in the EDA package library.

Electronic Design Automation (EDA) is a computer-based tool. The designer uses the hardware description language VerilogHDL to complete the design file on the EDA software platform. Then the computer automatically completes the logic compilation, simplification, segmentation, synthesis and optimization. , layout, routing, and simulation until adaptation, logic mapping, and program downloads for specific target chips. The emergence of EDA technology has greatly improved the efficiency and operability of circuit design and reduced the labor intensity of designers. The relevant parameters of the circuit design are stored in the EDA package library. In the present invention, land pattern data is extracted from the EDA package library. The pad image data includes size data such as a length and a width of the pad.

Step S2, creating stencil opening graphic data based on the land pattern data and a preset opening algorithm.

For those skilled in the art, the opening algorithm is a mature prior art, and can be implemented in a manual or automatic manner, and therefore will not be described herein.

Specifically, stencil opening pattern data is created based on the acquired land image data and the opening algorithm employed. Using different opening algorithms, different stencil opening graphic data will be generated.

Step S3, saving the stencil opening graphic data.

Specifically, the obtained stencil opening pattern data is saved, thereby realizing the construction of the stencil library. Among them, different stencil opening graphic data will be obtained for different package data. Therefore, the above operations are continuously repeated, and the contents of the steel mesh library will be continuously enriched.

In an embodiment of the invention, the stencil opening pattern data includes a package name, a land pattern data, and a stencil opening pattern data, so that the relationship between the stencil opening pattern data and the package name can be utilized in the design of the stencil. Automated stencil openings for all PCBs greatly simplify the design process.

As shown in FIG. 2, in an embodiment, the system for creating a steel mesh library based on the EDA package library of the present invention includes an acquisition module 21, a creation module 22, and a storage module 23.

The acquisition module 21 is configured to acquire pad pattern data in the EDA package library.

The creation module 22 is coupled to the acquisition module 21 for creating stencil opening graphic data based on the land pattern data and the preset opening algorithm.

For the person skilled in the art, the opening algorithm is a mature prior art, and can be implemented in a manual or automatic manner, and therefore will not be described herein.

The save module 23 is connected to the creation module 22 for storing the stencil opening graphic data.

It should be noted that the division of each module of the above system is only a division of logical functions, and the actual implementation may be integrated into one physical entity in whole or in part, or may be physically separated. And these modules can all be implemented by software in the form of processing component calls; or all of them can be implemented in hardware form; some modules can be realized by processing component calling software, and some modules are realized by hardware. For example, the x module may be a separately set processing element, or may be integrated in one of the above-mentioned devices, or may be stored in the memory of the above device in the form of program code, by a processing element of the above device. Call and execute the functions of the above x modules. The implementation of other modules is similar. In addition, all or part of these modules can be integrated or implemented independently. The processing elements described herein can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules may be completed by an integrated logic circuit of hardware in the processor element or an instruction in a form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above method, for example, one or more specific integrated circuits (ASICs), or one or more microprocessors (digitalsingnal processors, referred to as DSP), or one or more Field Programmable Gate Arrays (FPGAs). For another example, when one of the above modules is implemented by the processing component dispatcher code, the processing component may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call the program code. As another example, these modules can be integrated and implemented in the form of a system-on-a-chip (SOC).

The storage medium of the present invention stores a computer program that, when executed by the processor, implements the above-described method of creating a steel mesh library based on the EDA package library.

The storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, a USB flash drive, a memory card, or an optical disk.

As shown in FIG. 3, in an embodiment, the terminal of the present invention includes a processor 31 and a memory 32.

The memory 32 is used to store a computer program.

The memory 32 includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, a USB flash drive, a memory card, or an optical disk.

The processor 31 is coupled to the memory 32 for executing a computer program stored by the memory 32 to cause the terminal to execute the above-described method for creating a steel mesh library based on an EDA package library.

Preferably, the processor 31 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), and the like; or a digital signal processor (DSP). Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

The method of creating a steel mesh library based on the EDA package library of the present invention is further explained below by way of specific embodiments.

In this embodiment, Cadence software is employed.

(1) The library file is packaged as a *.dra or *.psm file in the Cadence allegro software, and the cadence API is used to obtain the pad pattern size information in each *.dra file.

(2) The pad pattern vector data is acquired through the API by the package name c1206.dra file.

(3) Select an open algorithm model.

(4) Using the length and width of the pad itself, the stencil opening is generated according to the opening algorithm model to generate a stencil opening pattern.

(5) Save the stencil opening graphic data.

In one embodiment, the stencil opening graphic data can be written into the c1206.dra using the API of the Cadence allegro software, and the stencil opening graphic data is generated in a new data layer and the storage package is updated. Among them, the recommended data layer is named Stencil_TOP.

In another embodiment, both the land pattern data and the stencil opening pattern data are saved in a database, and the package is named as a unique key field, as shown in Table 1.

Table 1, steel mesh opening graph database field

封装名Package name	焊盘图形Land pattern	钢网开口图形Steel mesh opening pattern
c1206C1206	图形数据Graphic data	图形数据Graphic data

Repeat the above steps until all the design pad package libraries have been processed, thus completing the construction of the steel mesh library, which can directly use the stencil opening image data in the automatic stencil design.

It should be noted that the wiring design software used in the present invention is not limited to Cadence, and may be Altium Designer, Mentor Graphics, Zuken, and the like.

In summary, the method and system for creating a steel mesh library based on the EDA package library, the storage medium and the terminal create a steel mesh library according to the EDA package library, and can automatically obtain all the relationships between the opening pattern data of the steel mesh and the package name. PCB stencil opening, which can automate the design of stencil; advance the stencil opening preparation to the design stage, rather than in the manufacturing stage, greatly shortening the design cycle; since any component on the PCB will be used The pad package in the wiring package library, so that no stencil opening is missed, so that the steel mesh library can be maintained more systematically. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

The above-described embodiments are merely illustrative of the principles of the invention and its effects, and are not intended to limit the invention. Modifications or variations of the above-described embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and scope of the invention will be covered by the appended claims.

Claims

A method for creating a steel mesh library based on an EDA package library, comprising the steps of:

Obtaining pad pattern data in the EDA package library;

Creating stencil opening graphic data based on the land pattern data and a preset opening algorithm;

The stencil opening graphic data is saved.
A method of creating a steel mesh library based on an EDA package library according to claim 1, wherein the land pattern data comprises a length and a width of the land.
The method for creating a steel mesh library based on an EDA package library according to claim 1, wherein the stencil opening pattern data is saved in the EDA package library or the pad steel mesh relation database.
The method for creating a steel mesh library based on an EDA package library according to claim 1, wherein the stencil opening pattern data comprises a package name, land pattern data, and stencil opening pattern data.
A system for creating a steel mesh library based on an EDA package library, comprising: acquiring a module, creating a module, and saving a module;

The obtaining module is configured to acquire pad graphic data in an EDA package library;

The creating module is configured to create stencil opening graphic data based on the land pattern data and a preset opening algorithm;

The saving module is configured to save the stencil opening graphic data.
A system for creating a steel mesh library based on an EDA package library according to claim 5, wherein the land pattern data comprises a length and a width of the land.
The system for creating a steel mesh library based on an EDA package library according to claim 5, wherein the saving module saves the stencil opening graphic data to the EDA package library or the pad steel mesh relation database.
The system for creating a steel mesh library based on an EDA package library according to claim 5, wherein the stencil opening pattern data comprises a package name, land pattern data, and stencil opening pattern data.
A storage medium having stored thereon a computer program, wherein the program is executed by a processor to implement a method of creating a steel mesh library based on an EDA package library according to any one of claims 1 to 4.
A terminal, comprising: a processor and a memory;

The memory is for storing a computer program;

The processor is configured to execute the computer program of the memory storage to cause the terminal to execute the method for creating a steel mesh library based on the EDA package library according to any one of claims 1 to 4.