autores Ana Cristina da Silva Braga Sampaio, Paulo Delgado, Isabel Marques, Carlos Manuel Campos Martins, C. Braga, A. Barros, C. Delgado, Pedro Delgado, I. Braga, A. C. Marques, C. Barros, Cláudia Sampaio, P.
palavras-chave Hotelling’s T 2 Multivariate Statistical Process Control Principal Component Analysis Multivariate statistical process control Normal operation conditions Principal component analysis Solder Paste Inspection Squared prediction error Variable contributions