Patent ID: 8624224
Filing Date: 2014-01-07
Classification: B82Y,H01L

Abstract:
1. A Nanotube Array Bipolar Transistor comprising: (a) a first metal layer; (b) at least one array of at least one nanotube superposed on, positioned normal to the plane of, and in electrical communication with the first metal layer, wherein the at least one nanotube comprises sequential first, second, and third sections exhibiting a first, second, and first semiconductor-type conductivity, respectively, so as to have p-n-p or n-p-n semiconductor junctions; (c) a first dielectric layer superposed on the first metal layer having a thickness corresponding to the length of the first section of the at least one nanotube exhibiting the first semiconductor-type conductivity; (d) a second dielectric layer superposed on the second dielectric layer; (e) a second metal layer superposed on the second dielectric layer; (f) a third dielectric layer superposed on the second metal layer, such that the combined thickness of the second dielectric, second metal, and third dielectric layers corresponds to the length of the second section of the at least one nanotube exhibiting the second semiconductor-type conductivity such that the second metal layer is in electrical communication with the second section of the at least one nanotube exhibiting the second semiconductor-type conductivity; (g) a fourth dielectric layer superposed on the third dielectric layer having a thickness corresponding to the length of the third section of the at least one nanotube exhibiting the first semiconductor-type conductivity; and (h) a third metal layer, superposed on the fourth dielectric layer, in electrical communication with the at least one nanotube.