Title :
Orthogonal fuzzy model of the solder paste printing stage of surface mount technology
Author :
Lotfi, A. ; Howarth, M. ; Thomas, P.D.
Author_Institution :
Dept. of Mech. & Manuf. Eng., Nottingham Trent Univ., UK
Abstract :
The novel idea of an orthogonal fuzzy rule-based system is introduced in this paper. It is shown that in a fuzzy rule-based system where rules are orthogonal, each rule induces its maximum effect on the final decision. Using 18 orthogonal fuzzy rules, a model for the solder paste printing stage of SMT is created. The predicted percentage of deposit volume from the orthogonal and non-orthogonal models are compared with actual values. The orthogonal model shows less error in 85% of the data points
Keywords :
fuzzy set theory; fuzzy systems; knowledge based systems; modelling; printed circuit manufacture; soldering; surface mount technology; PCB assembly; fuzzy rule-based system; fuzzy set theory; orthogonal fuzzy model; orthogonal rules; solder paste printing; surface mount technology; Bismuth; Computer aided manufacturing; Fuzzy set theory; Fuzzy systems; Input variables; Knowledge based systems; Machine control; Manufacturing automation; Printing; Surface-mount technology;
Conference_Titel :
Fuzzy Systems, 1997., Proceedings of the Sixth IEEE International Conference on
Conference_Location :
Barcelona
Print_ISBN :
0-7803-3796-4
DOI :
10.1109/FUZZY.1997.619754
