The present invention has an object to enhance the reliability of the electrical connection of a silver-based conductor film on the surface of a glass ceramic board. When two parts collide with each other, the changed state of the element is selected according to an interference condition such as a material, a direction in which force is applied, etc. The exhaust gas recirculation system is monitored depending on the comparison of the actual value of the exhaust gas recirculation rate and the predetermined setpoint value of the exhaust gas recirculation rate. The method traverses through the one or more constraint checking windows until all shapes in the layout are assigned to their respective mask designs. The p-i-n diode may be formed from silicon.