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

Claim 19:
20. An apparatus, comprising:
at least one vertical transistor, comprising:
a channel region;
gate electrodes at least partially recessed within the channel region relative to an outermost surface of the channel region in a direction orthogonal to a longitudinal axis of the at least one vertical transistor; and
a gate dielectric material directly intervening between the gate electrodes and the channel region, wherein a portion of the gate dielectric material extends along a lower end of the gate electrodes proximal to a conductive contact, and the portion of the gate dielectric material vertically separated from the conductive contact by a second dielectric material along a horizontal extent of the portion of the gate dielectric material, portions of the second dielectric material directly physically contacting lateral end surfaces of the gate dielectric material at an upper end of the gate electrodes, and additional portions of the second dielectric material directly physically contacting lateral end surfaces of the gate dielectric material at the lower end of the gate electrodes.