Seminar

Engineering HDR Seminar Series 5 & 6, 2011: (i) Statistical Measure of Discrete Point Uniformity; (ii) Advanced Condition Based Maintenance of High Volume Production Machines

(i) Mr Ong Meng Sang (ii) Mr Timothy Guan Chuan Siong, PSCT postgraduate students


Date: 2011-05-10
Time: 12:00 to 13:30
Venue: Classroom 9-3-06


Abstract

(i) The talk describes three different classes of mathematical measures of uniformity, discrepancy, point-to-point measures and volumetric measures. Correlation studies were carried out to compare their performance in discerning uniformity of random and quasi-random point sets with respect to human perception of uniformity. Some of the measures reported in the literature are found to be able to characterize and rank very limited class of point sets correctly. A new approach to better characterize uniformity based on the physical analogy of potential energy is presented. Closed form expression measuring the average uniformity of point set generated by spatial Poisson process is also derived theoretically. Simulations and novel application in signal processing are reported to corroborate the validity of the proposed technique.

(ii) To stay competitive, semiconductor manufacturers have come to acknowledge maintenance as an essential strategic element in manufacturing planning. Condition-based maintenance or CBM allows the maintenance strategy to be customised based on the equipment and its failure pattern. Traditional CBM uses simple control charts, which limits its application to simple systems. This talk described the use of Data-Driven CBM to as a maintenance strategy for equipment in a mass production environment.

About the Speaker

(i) Ong Meng Sang received his BEng (Hons) degree with first class honors in Mechatronics engineering from Monash University, Malaysia in 2008. He is currently pursuing his MEngSc (Research) with Monash University in a joint collaboration with Texas Instruments Malaysia. His main research areas include design and testing of mixed-signal integrated circuits, signal processing and algorithm development. Meng Sang’s research work is aligned to Campus Research Strength: Photonics, Semiconductor and Communication Technologies (PSCT). He has published three refereed research papers in IEEE Conference.

(ii) Timothy Guan received his BEng (Hons) degree with first class honors in Mechatronics engineering from Monash University, Malaysia in 2008. He is currently pursuing his MEngSc (Research) with Monash University in a joint collaboration with Texas Instruments Malaysia. His main research areas include condition-based maintenance of test handlers for semiconductor manufacturing. Timothy Guan’s research work is aligned to Campus Research Strength: Photonics, Semiconductor and Communication Technologies (PSCT).