Patent ID: 11889695
Assignee: MICRON TECHNOLOGY, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A device comprising:
an array of elevationally-extending transistors; and
a circuit structure adjacent and electrically coupled to the elevationally-extending transistors of the array, the circuit structure comprising:
a stair step structure comprising vertically-alternating tiers comprising first and second opposing flights of conductive steps, the conductive steps being at least partially elevationally separated from one another by insulative material;
operative conductive vias individually extending elevationally through one of the conductive steps at least to a bottom of the vertically-alternating tiers and which individually electrically couple to an electronic component below the vertically-alternating tiers, the operative conductive vias extending elevationally only through the steps in one of the first or second flights and not in the other of the first and second flights;
first-flight-dummy structures individually extending elevationally through one of the first-flight conductive steps at least to the bottom of the vertically-alternating tiers; and

second-flight-dummy structures individually extending elevationally through one of the second-flight conductive steps at least to the bottom of the vertically-alternating tiers.