Patent ID: 11908932
Assignee: MICRON TECHNOLOGY, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. The method of claim 16, further comprising:
forming a spacer material on bottom surfaces of the elongated trenches;
forming the gate dielectric material over the spacer material, the lower regions of the one or more channel regions, and the upper regions of the one or more channel regions;
forming a gate electrode material over the gate dielectric material within the elongated trenches;
forming recesses through the gate electrode material to expose the spacer material;
forming additional spacer material within the recesses;
removing portions of the gate dielectric material, the gate electrode material, and the spacer material horizontally adjacent to the upper regions of the one or more channel regions;
removing remaining portions of the spacer material within the elongated trenches; and
forming the insulative material within a portion of the elongated trenches, an additional portion of the elongated trenches adjacent to the lower regions of the channel regions comprising an air gap.