Patent US 6,962,844

A memory device includes a semiconducting polymer film, which includes an organic dopant. The semiconducting polymer film has a first side and a second side. The memory device also includes a first plurality of electrical conductors substantially parallel to each other coupled to the first side of the semiconducting polymer layer, and a second plurality of electrical conductors substantially parallel to each other, coupled to the second side of the semiconducting polymer layer. The first and second pluralities of electrical conductors are substantially mutually orthogonal to each other. Further, an electrical charge is localized on the organic dopant.