Patent ID: 9601685
Date: 2017-03-21
CPC Classifications: G01N,H01L

Claim:
1. A semiconductor device comprising: a first metal contacts on top of a substrate, the first metal contacts being arranged in a first direction, wherein the first metal contacts are arranged such that areas of the substrate remain exposed; insulator pads positioned at predefined locations on top of the first metal contacts, such that the insulator pads are spaced from one another; second metal contacts on top of the insulator pads, such that the second metal contacts are arranged in a second direction different from the first direction, wherein the first and second metal contacts sandwich the insulator pads at the predefined locations; and surface-sensitive conductive channels contacting the first metal contacts and the second metal contacts, wherein each of four-terminal devices is defined by the surface-sensitive conductive channels contacting a pair of the first metal contacts and contacting a pair of the second metal contacts; wherein the surface-sensitive conductive layers include a selection from the group consisting of: A) topological insulators having Bi and a selection from the group consisting of Te, Sb, and Se; B) material including graphene; C) material including MoS or MoSe; and D) a magnetic film.