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| 引线键合图形识别系统中的照明系统模拟技术 | |
| 引用本文： | Wayne Yong Cai Xiao Jin Hong Meng Ho. 引线键合图形识别系统中的照明系统模拟技术[J]. 电子工业专用设备, 2006, 35(9): 43-50 |
| 作者姓名： | Wayne Yong Cai Xiao Jin Hong Meng Ho |
| 作者单位： | Kulicke ＆ Sofia Pte. Ltd. 6, Serangoon North Ave 5, #03-16, Singapore 554910 |
| 摘 要： | 1. Introduction The wire bonding cycle can be divided into three main modules: Indexing, Pattern Recognition, and Wire Cycle. Typically, before bonding a package, the bonder’s vision system identifies“ taught”regions or fiducials in the circuitry pattern. Once the Pattern Recognition System (PRS) locates the fiducials, the bonder can map the overlay of bond locations that were originally taught against the fiducials position. Variations in LEDs (Light Emitting Diodes) brightness can … |
| 关 键 词： | Illumination model Illumination calibration Lighting calibration Vision system Machine vision |
Illumination System Modeling Techniques in Wire Bonding Pattern Recognition System |
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| Wayne Yong,Cai Xiao Jin,Hong Meng Ho. Illumination System Modeling Techniques in Wire Bonding Pattern Recognition System[J]. Equipment for Electronic Products Marufacturing, 2006, 35(9): 43-50 | |
| Authors: | Wayne Yong Cai Xiao Jin Hong Meng Ho |
| Abstract: | A method has been proposed to model the illumination characteristics of a typical wire bonder vision system. The proposed model can be used to calibrate the illumination of the vision system to ensure the same level of illumination brightness across different machines, given the same lighting level setting. The approach to extract the machine illumination model is semi-empirical and the model provides a closed-form solution. |
| Keywords: | Illumination model Illumination calibration Lighting calibration Vision system Machine vision. |
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