Machine learning is a field of artificial intelligence (AI) that allows a computer-controlled software or system to take decisions and learn based on the analysis of empirical data from a database or physical sensors. The ease of use of Vi TECHNOLOGY's 3D SPI is made possible thanks to machine learning. The Pi series 3D SPI inspection systems' revolutionary ergonomics and award-winning programming simplicity are made possible using patented machine learning algorithms. In addition, the color and therefore the shape and position of the screen printing are also learned during the programming phase. Unique algorithm measures exact height of paste deposits The R&D team at Vi TECHNOLOGY developed an algorithm allowing the system to learn how to locate the paste deposits, without relying only on the location patterns, which are often insufficient due to the stretch or warpage of the board.