Development Of An Optical Character Recognition Function System For Integrated Circuit Label Classification Using Neural Network
Presently, many Integrated Circuit (IC) manufacturers are applying machine vision solution to ensure the legibility of characters printed on the top surface of IC Package. In template matching technique there are about 10% of ICs rejected due to very little defects in quality of marking even though...
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my-upm-ir.53962013-05-27T07:22:32Z Development Of An Optical Character Recognition Function System For Integrated Circuit Label Classification Using Neural Network 2008 Mariappan, Vasan Presently, many Integrated Circuit (IC) manufacturers are applying machine vision solution to ensure the legibility of characters printed on the top surface of IC Package. In template matching technique there are about 10% of ICs rejected due to very little defects in quality of marking even though the characters are correct. The objective of this project is to develop an IC inspection system that has optical character recognition function system by using neural network. Feed forward back propagation neural network method is used in this task. The system developed is able to read 36 characters ( A to Z and 0 to 9) printed on ICs. The recognition time in template matching is 650μs. In neural network technique, by feeding-in Raw Data, Feature, and Hybrid (combination of Raw Data and Feature), they clock 18.22μs, 15.64μs and 19.32μs respectively. The recognition accuracy is 96.26% for the former and 98.25%, 98.83% and 99.61% for the latter. This is a solution to minimise rejects of ICs in manufacturing process. The reduction of processing time in manufacturing process contributes to the increase of productivity. Moreover, application of this technique gives a solution to avoid mismatch of parts (ICs) in manufacturing lots. Neural computers Optical pattern recognition 2008 Thesis http://psasir.upm.edu.my/id/eprint/5396/ http://psasir.upm.edu.my/id/eprint/5396/1/FK_2008_16.pdf application/pdf en public masters Universiti Putra Malaysia Neural computers Optical pattern recognition Faculty of Engineering English |
| institution |
Universiti Putra Malaysia |
| collection |
PSAS Institutional Repository |
| language |
English English |
| topic |
Neural computers Optical pattern recognition |
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Neural computers Optical pattern recognition Mariappan, Vasan Development Of An Optical Character Recognition Function System For Integrated Circuit Label Classification Using Neural Network |
| description |
Presently, many Integrated Circuit (IC) manufacturers are applying machine vision solution to ensure the legibility of characters printed on the top surface of IC Package. In template matching technique there are about 10% of ICs rejected due to very little defects in quality of marking even though the characters are correct. The objective of this project is to develop an IC inspection system that has optical character recognition function system by using neural network. Feed forward back propagation neural network method is used in this task. The system developed is able to read 36 characters ( A to Z and 0 to 9) printed on ICs. The recognition time in template matching is 650μs. In neural network technique, by feeding-in Raw Data, Feature, and Hybrid (combination of Raw Data and Feature), they clock 18.22μs, 15.64μs and 19.32μs respectively. The recognition accuracy is 96.26% for the former and 98.25%, 98.83% and 99.61% for the latter. This is a solution to minimise rejects of ICs in manufacturing process. The reduction of processing time in manufacturing process contributes to the increase of productivity. Moreover, application of this technique gives a solution to avoid mismatch of parts (ICs) in manufacturing lots. |
| format |
Thesis |
| qualification_level |
Master's degree |
| author |
Mariappan, Vasan |
| author_facet |
Mariappan, Vasan |
| author_sort |
Mariappan, Vasan |
| title |
Development Of An Optical Character Recognition Function System For Integrated Circuit Label Classification Using Neural Network
|
| title_short |
Development Of An Optical Character Recognition Function System For Integrated Circuit Label Classification Using Neural Network
|
| title_full |
Development Of An Optical Character Recognition Function System For Integrated Circuit Label Classification Using Neural Network
|
| title_fullStr |
Development Of An Optical Character Recognition Function System For Integrated Circuit Label Classification Using Neural Network
|
| title_full_unstemmed |
Development Of An Optical Character Recognition Function System For Integrated Circuit Label Classification Using Neural Network
|
| title_sort |
development of an optical character recognition function system for integrated circuit label classification using neural network |
| granting_institution |
Universiti Putra Malaysia |
| granting_department |
Faculty of Engineering |
| publishDate |
2008 |
| url |
http://psasir.upm.edu.my/id/eprint/5396/1/FK_2008_16.pdf |
| _version_ |
1747810415532834816 |