Patent ID: 7723757

Claim:
An integrated circuit of a nonvolatile memory device storing data, comprising: one or more charge storage structures having a first location storing a first charge storage state and a second location storing a second charge storage state, the first charge storage state and the second charge storage state representing the data such that the first charge storage state and the second charge storage state each represent at least one bit of the data; one or more storage dielectric structures at least partly between the first location of the one or more charge storage structures and a charge control structure, at least partly between the second location of the one or more charge storage structures and the charge control structure, at least partly between the first location of the one or more charge storage structures and a source of gate voltage, and at least partly between the second location of the one or more charge storage structure and the source of gate voltage; the charge control structure having: a first node having a first charge type; a second node having a second charge type opposite to the first charge type; a third node having the first charge type; a first junction separating the first node and the second node, the first junction adjacent to a part of the one or more storage dielectric structures at least partly between the first location of the one or more charge storage structures and the charge control structure; a second junction separating the second node and the third node, the second junction adjacent to a part of the one or more storage dielectric structures at least partly between the second location of the one or more charge storage structures and the charge control structure, wherein the charge control structure is vertically oriented with respect to a substrate of the integrated circuit, such that in a cross-section of the nonvolatile memory device, the second node and the third node are further from the substrate than the first node, and the third node is further from the substrate than the second node.