Provided is a circuit board device in which printed wiring boards 11, 12 are connected to each other electrically using a anisotropic conductive member 15 disposed between the printed wiring boards 11, 12. These multiple spatial scales include a pixel scale, a regional scale and a frame scale. The ring oscillator includes an odd number of ordered inverting elements. The front-end storage device is directly connected to the user via a network and the back-end storage device not being directly connected to the network. Hereby, it is possible to supply the process conditions change monitoring systems and methods that enable output of accurate changes in exposure level and focus.