CN102521431A - How to deal with wires in PCB design data - Google Patents

Abstract

The invention relates to a method for processing a lead in PCB design data, which comprises the following steps: step 1, reading a PCB design data file from a database by CAM software; step 2, inputting the length L and the width W of a required line segment through an operation interface; step 3, performing line width analysis on the line layer to be processed by using CAM software to obtain each insufficient width position of the wire and generate a first line segment at the insufficient width position; step 4, generating a new layer A by using the analysis result; and 5, respectively converting the first line segments generated at each insufficient width position in the new layer A to correspondingly generate second line segments with the length L and the width W. The processing method of the conducting wire in the PCB design data can quickly generate the line segment meeting the width requirement through automatic calculation, thereby greatly shortening the manufacturing time of the conducting wire and improving the working efficiency.

Description

How to deal with wires in PCB design data

technical field

The invention relates to the field of printed circuit board (Printed Circuit Board, PCB) production, in particular to a method for processing wires in PCB design materials.

Background technique

At present, in the process of PCB production, computer aided manufacturing (Computer Aided Manufacturing, CAM) software is often used to process PCB design data to provide certain tasks for each production process, such as various films, drill tapes, gong tapes, etc., so as to achieve It is convenient for production and plays an auxiliary manufacturing role.

When PCB design data is processed in CAM software such as Genesis 2000 (developed by Frontline PCB Solutions in Israel), which is commonly used in the industry, there is generally a minimum width requirement for conductors. In order to meet the minimum width requirement of the wire, the existing processing method is manual, that is, manually add line segments that meet the width requirement one by one at each wire position with insufficient width. This method is inefficient, highly repeatable, and error-prone.

Contents of the invention

Therefore, the object of the present invention is to provide a method for processing wires in PCB design data, which can automatically generate line segments that meet the line width requirements at each line layer where the width of each wire is insufficient.

In order to achieve the above object, the invention provides a method for processing the wires in the PCB design data, comprising the steps of:

Step 1. Read the PCB design data file from the database by the CAM software;

Step 2. Input the length L and width W of the required line segment through the operation interface;

Step 3, using CAM software to analyze the line width of the line layer to be processed, obtaining the position where the width of each conductor is insufficient and generating a first line segment at the position where the width is insufficient;

Step 4, using the analysis results to generate a new layer A;

Step 5. For the first line segment generated at each position with insufficient width in the new layer A, convert the first line segment to correspondingly generate a second line segment with length L and width W.

Said step 5 specifically includes: step 5.1, storing the starting point coordinates (x1, y1) and end point coordinates (x2, y2) of the first line segment generated by each insufficient-width position in the new layer A into an array; step 5.2 1. Carry out the following processing for each first line segment in the new layer A: use the starting point coordinates and end point coordinates of the first line segment to calculate the length L' of the first line segment, according to the calculated length L' and the required Length L calculates the ratio S=L/L' that the first line segment needs to be stretched, extends the first line segment according to the ratio S, then rotates the extended first line segment by 90 degrees, and then rotates the first line segment After the width of the first line segment becomes W, the corresponding second line segment is obtained.

In the step 1 and step 3, the CAM software adopts Genesis 2000.

Beneficial effects of the present invention: the method for processing the wires in the PCB design data of the present invention can quickly generate line segments that meet the width requirements and have uniform lengths and accurate positions through automatic calculation, without manually adding them one by one at each position where the width is insufficient Line segments that meet the width requirements greatly shorten the production time of wires and improve work efficiency.

In order to further elaborate the technical means and effects adopted by the present invention to achieve the predetermined purpose, please refer to the following detailed description and accompanying drawings of the present invention. It is believed that the purpose, characteristics and characteristics of the present invention should be able to gain a deep and specific understanding from this , however, the accompanying drawings are provided for reference and illustration only, and are not intended to limit the present invention.

Description of drawings

The technical solutions and other beneficial effects of the present invention will be apparent through the detailed description of specific embodiments of the present invention below in conjunction with the accompanying drawings.

In the attached picture,

Fig. 1 is a schematic flow chart of the processing method of the wires in the PCB design data of the present invention.

Detailed ways

As shown in Figure 1, the processing method of the wire in the PCB design data of the present invention comprises the following steps:

Step 1, read PCB design data file from database by CAM software, wherein said CAM software adopts Genesis 2000 or other known CAM software for PCB;

Step 2. Input the length L and width W of the required line segment through the operation interface;

Step 3. Use CAM software to analyze the line width of the line layer to be processed, obtain the position where the width of each conductor is insufficient and generate a first line segment at the position where the width is insufficient. For example, the line width analysis function that comes with Genesis 2000 can Realize the above line width analysis;

Step 4, using the analysis results to generate a new layer A;

Step 5. For the first line segment generated at each position with insufficient width in the new layer A, convert the first line segment to correspondingly generate a second line segment with length L and width W.

Said step 5 specifically includes: step 5.1, storing the starting point coordinates (x1, y1) and end point coordinates (x2, y2) of the first line segment generated by each insufficient-width position in the new layer A into an array; step 5.2 1. Carry out the following processing for each first line segment in the new layer A: use the starting point coordinates and end point coordinates of the first line segment to calculate the length L' of the first line segment, according to the calculated length L' and the required Length L calculates the ratio S=L/L' that the first line segment needs to be stretched, extends the first line segment according to the ratio S, then rotates the extended first line segment by 90 degrees, and then rotates the first line segment After the width of the first line segment becomes W, the corresponding second line segment is obtained.

The processing method of the wires in the above-mentioned PCB design materials can quickly generate line segments that meet the width requirements and have uniform lengths and accurate positions through automatic calculation, without manually adding line segments that meet the width requirements one by one at each position where the width is insufficient, so that it is extremely convenient. The production time of wires is greatly shortened, and the work efficiency is improved.

As mentioned above, for those of ordinary skill in the art, other various corresponding changes and modifications can be made according to the technical scheme and technical concept of the present invention, and all these changes and modifications should belong to the appended claims of the present invention scope of protection.

Claims (3)

1. the disposal route of the lead in the PCB design data is characterized in that, comprises the steps:

Step 1, from database, read PCB design data file by CAM software;

Step 2, pass through length L and width W that operation-interface is imported the line segment of demand;

Step 3, the line layer that adopts CAM software that needs are handled carry out Analysis of Linewidth, obtain the not enough position of each conductor width and generate one first line segment in the not enough position of this width;

Step 4, utilize analysis result to generate new layer A;

Step 5, first line segment that is generated for the not enough position of each width among the new layer A change to said first line segment respectively that to generate length with correspondence be that L, width are second line segment of W.

2. the disposal route of the lead in the PCB design data as claimed in claim 1; It is characterized in that; Said step 5 specifically comprises: and the starting point coordinate of first line segment that the not enough position of each width is generated among step 5.1, the new layer of the general A (x1, y1) (x2 y2) is stored in the array with terminal point coordinate; Step 5.2, handle as follows: utilize each terminal point coordinate of starting point coordinate of this first line segment to calculate the length L of this first line segment ' for each bar first line segment among the new layer A; According to the length L of calculating ' and the length L of demand calculate the ratio S=L/L ' that this first line segment need stretch; With this first line segment in proportion S prolong; To revolve through first line segment after prolonging then and turn 90 degrees, will become W through the width of postrotational first line segment again, obtain the second corresponding line segment.

3. the disposal route of the lead in the PCB design data as claimed in claim 1 is characterized in that, in said step 1 and the step 3, and CAM The software adopted Genesis 2000.

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