Study And Application On Knowledge Discovery Technologies For The HB-LED Chip Manufacture Process

In this paper, the most research work focused on the knowledge discovery technology for the manufacture process of HB-LED (High Brightness Light Emitting Diode) chip. Through analyzing and researching the manufacture process of HB-LED chip, the architecture of Rough Sets based knowledge discovery system for the manufacture process of HB-LED chip was proposed, the fundamental principles and the realizing methods were studied, and a prototype system by which operator can input data, retrieve information about HB-LED chip process and discover knowledge was developed. The main work of this paper contained:1) It analyzed the researching significance of knowledge discovery for the manufacture process of the HB-LED chip. For its complex process, to control and promote the process of the HB-LED chip needed rich experience about it. The discovery and analysis of the current manufacture data helped to promote manufacture efficiency, optimize process and improve product performance. The overseas and home research situation about knowledge discovery and Rough Set, design and manufacture technology about HB-LED chip were summarized. Finally, four main tasks of the paper were determined.2) It studied the fundamental principle of the Rough Set based knowledge discovery. The concepts and methods which would be used, such as the discrete methods of the continuing attributes, the operation of Rough Set basic concepts, the relative reduction and relative core, the dependability and significance of attributes were discussed, and reduction based on Rough Set was also analyzed.3) In order to better design the knowledge discovery system for the HB-LED chip, the manufacture process of the HB-LED chip was researched.