A fuel cell has unit cells wherein gas discharged from an oxidizer electrode in one unit cell and gas discharged from a fuel electrode in other adjacent unit cell are merged in and charged through a discharge flow passage provided outside these unit cells. The bonding pad has at least one slot or hole in it, located at or adjacent to at least one corner of the approximately rectangular metal pattern. The fixed housing includes a bottom frame and a side frame. The triggered session is identified using the state data received in the triggered message. The surface and print medium are spaced apart by a distance in the range of 1 to 3 mm and the electrically conductive member has a sheet resistance value of 15 k to 10 M. The chuck wall is provided with an image such as a logo, pattern, printed or etched image, typically for promotional purposes.