A solid-state imaging device having an arrangement in which well contact is achieved for each pixel is provided. LEDs of a dome type are arranged on four corners at a bottom surface of a box body of a tray shape whose bottom surface is quadrilateral, whose upper side is open, on an inner surface of which a light reflection member is provided, and whose side walls are inclined outward. The nickel particles may be incorporated in the polyester by melt compounding, or may be added at any stage of the polymerization, such as during the melt-phase of the polymerization. By appropriately controlling a bias voltage to the gated regions, small changes in a magnetic field induces larger currents in channel regions under the gated regions, which, in turn, results in detectable Hall voltages. Embodiments of the invention facilitate maximal access efficiency for all clients which share the data, without the incurring the overhead of moving or replicating the data between the clients. The apparatus can also include a tensioning member disposed to bias the hollow, flexible, member towards the housing.