Method for detecting and classifying stain and defect types and levels based on circuit board

A defect type, circuit board technology, applied in the direction of optical testing flaws/defects, measuring devices, analyzing materials, etc., can solve problems such as rising production costs, and achieve the effect of reducing the number of times

Pending Publication Date: 2022-03-22
江门市浩远科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to make up for the deficiencies of the prior art and solve the problem that circuit boards that are stained and can be cleaned are often judged as defective circuit boards to be sold at a reduced price, and cannot be controlled by adjusting the production process, resulting in an increase in production costs. The present invention A proposed method based on detection and classification of circuit board stains and defect type category levels

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  • Method for detecting and classifying stain and defect types and levels based on circuit board
  • Method for detecting and classifying stain and defect types and levels based on circuit board
  • Method for detecting and classifying stain and defect types and levels based on circuit board

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Embodiment Construction

[0047] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0048] Such as Figure 1 to Figure 5 As shown, a kind of method for detecting and classifying based on circuit board stain and defect type category level according to the present invention, the method comprises the following steps:

[0049] S1: Acquiring information about circuit boards that need to be detected for defects;

[0050] S2: Obtain the information of the circuit board through the image recognition technology of the first camera, and judge whether the circuit board is defective;

[0051] S3: Carry out defect type feature detection on defective circuit boards, and if the identified defect type does not belong to conventional defects, it will be judged as a suspected defect, including new defect types and stains;

[0052] S4: Determine ...

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Abstract

The invention belongs to the technical field of circuit board detection, and particularly relates to a circuit board stain and defect type class level-based detection and classification method, which comprises the following steps of: detecting and analyzing a circuit board according to the steps S1 to S6; each step is distinguished, so that the defect type of the defective circuit board is distinguished, the circuit board with known defects and the circuit board with stains is distinguished, and whether the circuit board with the stains is a circuit board with cleanable stains or a circuit board with non-cleanable stains is distinguished by cleaning the circuit board with the stains for multiple times. Therefore, the circuit board with the defects can be accurately divided, the reason for generating the defects is analyzed according to the problems existing in the circuit board with the defects, the production links and modes of the circuit board are adjusted, and then the frequency of generating the defects is avoided or reduced.

Description

【Technical field】 [0001] The invention belongs to the technical field of circuit board detection, and specifically relates to a detection and classification method based on circuit board stains and defect types and levels. 【Background technique】 [0002] The circuit board is the basis of the electrical connection of electronic components, and as the design and manufacture of printed circuit boards tend to be more and more high-precision, high-performance and high-density, the market also puts forward higher requirements for the defect detection of circuit boards. [0003] Common defects on the market today include short circuits, short circuits, bumps, dents, voids, and stains; traditional detection methods are generally manual visual inspection and electrical testing. [0004] At present, the detection of circuit boards is mainly manual visual inspection and electrical testing, but for manual visual inspection, there are problems of low efficiency and large error rate, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/956G01N21/88
CPCG01N21/956G01N21/8851G01N2021/95638G01N2021/8854G01N2021/8887
Inventor 吴年升赖俊崇
Owner 江门市浩远科技有限公司
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