Disclosed is a compound of pyrimidyl benzamides and a synthesis method thereof. In the chip component mounting structure, a position fixing resin for maintaining the orientation of chip components which are pressure-bonded to a substrate via an anisotropic conductive film is provided. The insulating rings engage the spindle so that the insulating rings are unable to rotate relative to the spindle. By cooling the first drive beam faster than the second drive beam, the motion of the MEMS thermal device may be hysteretic. The method comprises comminuting and electro-fracturing rocks of the material and thereby reducing the rock size.