Semiconductor structure and method of manufacturing the same

Abstract

Present disclosure provides a method for forming a semiconductor structure, including forming a dielectric layer over a semiconductor substrate, patterning an insulator stripe over the semiconductor substrate, including forming an insulator layer over the semiconductor substrate and at a bottom of the insulator stripe, depositing a semiconductor capping layer continuously over the insulator stripe, wherein the semiconductor capping layer includes crystalline materials, wherein the semiconductor capping layer is free from being in direct contact with the semiconductor substrate, and cutting off the semiconductor capping layer between the insulator stripes, forming a gate, wherein the gate is in direct contact with the semiconductor capping layer, a first portion of the semiconductor capping layer covered by the gate is configured as a channel structure, and forming a conductible region at a portion of the insulator stripe not covered by the gate stripe by a regrowth operation.