SMT process prediction tool for intelligently deciding PCB quality

A technology of intelligent decision-making and tools, applied in CAD circuit design, sustainable manufacturing/processing, biological neural network models, etc., can solve problems such as limited product quality, many influencing factors, and increased production costs, so as to improve the level of intelligence, Accurate process parameters and high accuracy

CN112261866AInactive Publication Date: 2021-01-2210TH RES INST OF CETC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-01-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an SMT process prediction tool for intelligently deciding PCB quality, and aims to provide a tool set which is high in automation degree, accurate in pushing process parameter,controllable in process and low in defect rate. According to the technical scheme, a data fusion tool automatically reads size parameters and component information on design conditions of a to-be-assembled printed board through a database, design condition lists of different components are formed for a software execution layer, a printing parameter decision-making tool set and a welding parameterdecision-making tool set in the software execution layer perform comparison according to printing and welding data under the design conditions of the components on the to-be-assembled printed board,a multi-objective optimization algorithm and a deep learning algorithm are adopted to automatically make decisions on printing parameters and welding parameters, printing and welding quality are predicted, the decided printing and welding process parameters and the corresponding prediction quality results are sent into a human-computer interaction tool set, and the printing and welding process parameters and the quality prediction values are displayed in a visual mode.
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Description

technical field

[0001] The invention relates to an SMT process prediction tool that applies intelligent technology (SMT) to realize intelligent decision-making of PCB quality, specifically including automatic process decision-making and quality prediction of two key processes of SMT production line printing and welding. Background technique

[0002] SMT (Surface Mounted Technology) surface mount technology (surface mount technology), also known as surface mount or surface mount technology, is currently the most popular technology and process in the electronics assembly industry. It is a kind of non-lead or short-lead surface mount components (SMC / SMD for short, Chinese called chip components) mounted on the surface of the printed circuit board (PCB) or other substrates, through reflow soldering or The circuit assembly and connection technology of soldering assembly by dip soldering and other methods. The advantages of using SMT include 1) Electronic products are reduced in ...

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Embodiment Construction

[0013] refer to figure 1 . In the preferred embodiment described below, an SMT process prediction tool for intelligent decision-making of PCB quality includes: a data fusion tool set communicating with a database, a printing parameter decision tool set, a welding parameter decision tool set, and a human-computer interaction tool set The software layer of the SMT intelligent decision-making tool set is characterized in that: the data fusion tool automatically reads the size parameters and component information on the design conditions of the printed board to be assembled through the database, and forms the design conditions of different components for the software execution layer List, the printing parameter decision-making tool set and welding parameter decision-making tool set in the software execution layer, according to the design conditions of the components on the printed board to be assembled, compare with the printing and welding data of the historical components under ...