The installation of the most advanced production machines and inspection equipments are indispensable to keep supplying safe and high quality products. AOS installs the vacuum press machines and optical automatic inspection machines, which are precise and has the reliable capabilities. But skillful workers are needed to manipulate those machines. One of our policies is to train workers continuously for the further development of their skill. We of course understand production of 100% unsuspicious products cannot be achieved without setting up high-skilled workers in each section. Only humans can master the way of how to control the advanced machines.