An integrated circuit structure includes providing a semiconductor substrate and forming a trench therein. The penetration catheter may be advanced contralaterally to a location above the occlusion and the capture and stabilization catheter may be introduced upwardly through the femoral vein. The first regulating portion is arranged outside a second width paper passage area to regulate a movement of a first width paper such as A4 paper placed in the paper placing tray toward a feeding direction. % of forsterite powder and 55 to 65 wt. Accordingly, an electrode including the binder has improved phosphoric acid retention capacity, and increased wetting velocity.