CHARGE TRANSFER DEVICE WITH DRIVE GRID

摘要

The invention relates to a charge transfer device. Such devices include at least one insulated conductive grid (3) connecting two semiconductor areas. According to the invention, each insulated conductive grid (3) has a width which gradually increases from the first semiconductor area (1) to the second semiconductor area (2). The width of each grid (3) is sufficiently narrow for the potential trough created by applying a voltage (V) to the grid to have a gradually increasing depth from the first area (1) to the second area (2), thus driving the charges. The invention can be applied to any charge transfer device and particularly to photodiodes.