Patent ID: 9035289
Filing Date: 2015-05-19
Classification: H01L

Abstract:
1. A nonvolatile memory device, comprising: a first conductive unit having a first work function; a second conductive unit having a second work function smaller than the first work function; and a storage layer provided between the first conductive unit and the second conductive unit, the storage layer being reversibly transitionable between a first state and a second state by at least one selected from a voltage applied via the first conductive unit and the second conductive unit and a current supplied via the first conductive unit and the second conductive unit, the second state having a higher resistance than the first state, the storage layer being made using a source material including an aromatic diamine molecule and an aromatic tetracarboxylic dianhydride molecule, an ionization potential of the aromatic diamine molecule being greater than the first work function, an absolute value of the difference between the ionization potential and the first work function being not less than 0.5 eV and not more than 2.0 eV, an electron affinity of the aromatic tetracarboxylic dianhydride molecule being less than the second work function, an absolute value of the difference between the electron affinity and the second work function being not less than 0.5 eV and not more than 2.0 eV.