System and method for analysing surface condition of printed circuit board using red ,green and blue colours
A printed circuit board, color technology, applied in the direction of printed circuit, printed circuit manufacturing, printed circuit secondary processing, etc., can solve the problems of increasing PCB manufacturing cost, inability to apply easily, high installation cost, etc.
Inactive Publication Date: 2004-12-01
SAMSUNG ELECTRO MECHANICS CO LTD
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Problems solved by technology
However, the problem is that the surface analyzer increases the manufacturing cost of the PCB due to its high installation cost and cannot be easily applied to newly developed products
Method used
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[0026] Now, a system and method for analyzing PCB surface conditions using RGB signals according to the present invention will be described with reference to the accompanying drawings.
[0027] First, refer to figure 1 A system and method for analyzing PCB surface conditions using RGB signals according to the present invention will be described.
[0028] refer to figure 1 , shows a conveying unit 100 on which a PCB to be analyzed is carried and conveyed to an image pickup position where a pickup unit 200 to be described below is placed. The delivery unit 100 includes a conveyor belt, connected to the PCB production line, and adapted to deliver the PCB to an image pickup position, a sensor, installed at a predetermined position of the conveyor belt, and used to sense the state of the conveyor, and a control signal input / output unit for The control signal used to control the operation of the delivery unit is received from the signal analysis unit 300, and the control unit is u...
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A system for and a method of analyzing the surface condition of a PCB using RGB colors are disclosed. The analyzing method includes the steps of feeding a target PCB, to be measured, to an image pick-up position where a pick-up unit is disposed, by a feeding unit, picking up an image of a metal surface of the fed target PCB, extracting pixel data from the picked-up image for the target PCB, performing a mapping operation for RGB signals of the extracted pixel data in accordance with a mapping program, thereby determining relative RGB values, producing cumulative distribution data of the relative RGB values for the target PCB in accordance with an RGB-mapping process, and quantitatively determining the oxidation degree of the target PCB metal surface exhibited with the lapse of time, based on the cumulative distribution data. Since relative values of RGB colors in an image picked up from the metal surface of a PCB can be analyzed, it is possible to rapidly and easily analyze the surface condition of the PCB such as oxidation, contamination, or structural defects of the PCB in a quantitative manner without using an expensive surface analyzer.
Description
technical field [0001] The present invention relates to a system and a method for analyzing the surface condition of a PCB by using color, in particular, a system and a method for analyzing the surface condition of a PCB by using color, wherein based on the relative value of the RGB signal, by picking up the PCB image Quantitatively measure the degree of oxidation of the PCB in the unit pixel of the image obtained. Background technique [0002] The PCB, on which electronic components such as semiconductor chips, resistors, and capacitors are mounted, is used to electrically connect the mounted electronic components through a conductive wiring pattern of a desired shape, or to supply a driving voltage to the electronic components. Such a PCB includes a board on which electronic components are mounted, and patterns required for wiring to electrically connect the mounted electronic components. [0003] The construction of such a PCB and the process of manufacturing the PCB wil...
Claims
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IPC IPC(8): G06T1/00G01N21/27G01N21/956G06T7/00G06T7/40H05K3/00H05K3/22H05K13/08
CPCG01N21/27G01N21/3554G06T2207/30141H05K2203/0315H05K2203/162G06T7/0004H05K3/22G06T7/408G01N2021/95638G06T7/90H05K13/081
Inventor 李孝洙申荣焕金宗镐
Owner SAMSUNG ELECTRO MECHANICS CO LTD