A magnetic recording device includes a patterned media magnetic recording medium where multiple tracks are arranged for radial direction in a concentric manner, the tracks each being formed by arranging multiple recording dots. The memory cell array and the peripheral circuit section are formed in different layers. The adhesive is cured by applying light or heat to thereby fix the holding plates, the solid-state image pickup elements and the prisms, respectively. The tool is simple in construction, reliable in operation and easy to control in order to efficiently remove grout from between tiles.