Patent ID: 9111775
Filing Date: 2015-08-18
Classification: B82Y,H01L

Abstract:
1. A semiconductor substrate comprising: a substrate selected from a glass substrate, a quartz substrate, and a plastic substrate; an amorphous silicon layer over the substrate; a structure body over and in contact with the amorphous silicon layer, the structure body comprising a first portion and a second portion over and in direct contact with the first portion, wherein the first portion and the second portion comprise amorphous silicon and microcrystalline silicon, respectively, wherein a cross-section of the first portion, which is perpendicular to a top surface of the amorphous silicon layer, has a trapezoidal shape whose shorter base is in contact with the amorphous silicon layer, and wherein a cross-section of the second portion, which is parallel to the top surface of the amorphous silicon layer, has a round shape whose maximum diameter is longer than a longer base of the trapezoidal shape.