Method of patterning two-dimensional material layer on substrate, and method of fabricating semiconductor device

A method of manufacturing a semiconductor device, the method comprising:

• selectively forming a first material layer on a surface of a substrate to form a first region in which the first material layer covers the surface of the substrate and to further form a second region in which the surface of the substrate is exposed from the first material layer;
• forming a 2D material layer having a layered structure of a two-dimensional (2D) material in both the first region and the second region, wherein an adhesive force between the 2D material and the first material layer in the first region is greater than an adhesive force between the 2D material and a separate material in the second region;
• removing the 2D material layer from the second region based on using a physical removal method, and not removing the 2D material layer from the first region, such that the 2D material layer remains exclusively in the first region, based on the adhesive force between the 2D material and the first material layer in the first region being greater than the adhesive force between the 2D material and the separate material in the second region, wherein the 2D material layer that remains exclusively in the first region;
• forming a channel layer based on the removing the 2D material layer from the second region based on using the physical removal method, wherein the channel layer includes the 2D material layer that remains exclusively in the first region;
• forming a first electrode and a second electrode, wherein the first electrode and the second electrode are each in direct contact with the channel layer and are isolated from direct contact with each other;
• and
• forming a third electrode extending in parallel with the channel layer.