Inspection Technologies 7. Electrical Inspection of Printed Circuit Boards.
نویسندگان
چکیده
منابع مشابه
Neural Network Diagnosis for Visual Inspection in Printed Circuit Boards
In this paper we present an Automatic Optical Inspection system to diagnose Printed Circuit Boards mounted in Surface Mounting Technology. The diagnosis task is handled as a classification problem with a neural network approach. The Printed Circuit Board tested images are preprocessed by means of several methods to reduce the amount of data to feed to the neural networks. We compare the results...
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This paper provides a general overview of immediate and long-term aims of the printed circuit board inspection project of The Robotics Institute. Its purpose is to highlight some of the significant issues specific to printed circuit board inspection and to provide a discussion of our basic thesis that machine inspection should be coupled with machine diagnosis of the causes of observed printed ...
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An automated visual printed circuit board (PCB) inspection system proposed in this paper is designed specifically to detect various types of defects occurred during circuit printing process in manufactory. Two-dimensional HAAR wavelet transform is incorporated in the PCB inspection algorithm of the inspection system. During the inspection, two type of images are required; reference and tested P...
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In the PCB manufacturing, position accuracy is very important for automatic assembly and defect inspection. In this paper we present a machine vision scheme for printed circuit board (PCB) positioning and inspection based on the Expectation-Maximization (E-M) algorithm. It can be well tolerated with deformation and incomplete shape of the template object in the PCB. The proposed method starts w...
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ژورنال
عنوان ژورنال: The Journal of Japan Institute for Interconnecting and Packaging Electronic Circuits
سال: 1996
ISSN: 1884-1201,1341-0571
DOI: 10.5104/jiep1995.11.404