Methods for determining an electrical parameter of an insulating film are provided. The write circuit stores input data in accordance with a first clock associated with the input data. Each module comprises a set of first aligned spaced fingers with transverse aperture, and also a set of second aligned spaced fingers with transverse aperture, which in general are disposed in a staggered position relative to the first fingers. , a floating gate electrode and control gate electrode of the nonvolatile memory device. The second film of the R unit pixel is thicker than the second films of the other unit pixels.