Method for automatic check of process data of printed circuit board

Abstract

The invention discloses a method for automatic check of process data of a printed circuit board (PCB), comprising formulating a manufacturability check rule according to a PCB manufacturability design specification; establishing a check rule database including the manufacturability check rule and PCB manufacturer processing information; reading PCB process data from light-plotting and drilling files introduced from an EDA; designing a universal data structure to integrate the process data; hierarchically and visually displaying a PCB light-plotting effect drawing; and calling the check rule during the check process to perform manufacturability check on the process data, performing a qualification check to the PCB manufacturer processing, and classifying and outputting the check result list. The method causes a user to be independent from an EDA (electronic design automation) design environment; the method is suitable for PCB manufacturers, professional EDA / CAD (computer aided design) companies and independent circuit design engineers to realize an automatic check function of PCB process data after finishing a PCB design and before processing and manufacturing; the method combines the processing capacities of the PCB manufacturers to perform manufacturability analysis, decrease the processing rejection rate and increase the production efficiency and product quality.

Description

technical field [0001] The invention belongs to the field of printed circuit board processing and manufacturing, mainly relates to electronic circuit design and manufacturing, and constructs an effective communication bridge between design and manufacturing, in particular to an automatic inspection method for PCB processing data. After the PCB design is completed and before the manufacturing process, the manufacturability review of the PCB design processing data and the processing capability review of the PCB manufacturer can be carried out. Background technique [0002] After half a century of development, the printed circuit board industry started from the research and trial production of single-sided, double-sided and metal perforated boards to the production of single-sided, double-sided, multi-layer and flexible boards. With the improvement of the design level, the enhancement of electronic design automation (EDA software function), the improvement of processing technol...

AI Technical Summary

Problems solved by technology

However, the review of PCB processing data still adopts the traditional model, and there is a lack of effective communication bridge between increasingly high-end design technology and processing technology: PCB designers output manufacturing data, and processing manufacturers' computer-aided manufacturing, that is, CAM engineers, according to the company Manufacturing data review specifications or personal experience, manual inspection of PCB manufacturability

This brings many difficulties to the communication between electronic circuit design and manufacturing. Not only is the efficiency low, the processing cycle is long, and manual inspection may not be able to eliminate most errors, and product quality cannot be guaranteed.

PCB processing adopts the method of mass production. PCB processing includes the production of inner and outer layers, and copper plating is required. It involves the use of various heavy metals. The process is complicated, the process is numerous, the manufacturing cost is high, and the consumption is large. The design mass production required by the processing capacity will inevitably produce waste products, which not only increases new electronic pollution, but also causes huge economic losses

[0003] Although foreign software provides a certain review function of design and manufacturing data, these software are not only expensive, but also the configuration is too complicated, the practicability and interactivity have great defects, and it is not convenient for design and processing personnel to use

At the same time, this type of software has been monopolized by foreign countries for a long time, and domestic companies lack a certain degree of autonomy in purchasing and using it, and there may be unknown backdoors in the software, which is not conducive to product development and use

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