Patent ID: 7728327
Filing Date: 2010-06-01
Classification: H01L

Abstract:
1. A 2-terminal semiconductor device comprising: a first electrode layer as a substrate; an abrupt metal insulator transition (MIT) semiconductor organic or inorganic material layer, having an energy gap of less than 2 eV and holes in a hole level, disposed on the first electrode layer, wherein the abrupt MIT semiconductor material layer is operable to change from an insulator to a metal with a discontinuous jump without a structural phase transition by doping holes in the hole level at a low concentration and carriers of the abrupt MIT semiconductor material layer change from holes to electrons; and a second electrode layer disposed directly on the abrupt MIT semiconductor organic or inorganic material layer, wherein the 2-terminal semiconductor device is a switch device due to the discontinuous jumps, wherein the abrupt MIT semiconductor material layer includes at least one selected from inorganic compound semiconductors that include p-type semiconductors to which the low concentration of holes is added and p-type semiconductor elements (group-type III-V and II-VI) to which the low concentration of holes is added, and wherein the p-type semiconductor to which the low concentration of holes is added includes at least one selected from Si(100), Si(111), Si(110), Si:B, Si:P, Ge(100), SiC, SiGe, AlAs, InAlAs, AlSb, BN, GaAs, InGaAs, GaP, GaSb, Ga