Patent ID: 11937430
Assignee: nan
Field: nan (nan)
Classification: CPC H | IPC H

Claim 9:
10. A method of forming an integrated assembly, comprising: an integrated assembly, comprising:
forming a first stack of alternating first and second tiers over a conductive structure; the first and second tiers comprising a first material and an insulative second material, respectively;
forming a first opening to extend through the first stack;
forming a second stack of alternating third and fourth tiers over the first stack; the third and fourth tiers comprising a third material and an insulative fourth material, respectively;
forming a second opening to extend through the second stack to the first opening;
forming a first staircase opening to extend into the first and second stacks;
forming a third stack of alternating fifth and sixth tiers over the second stack; the fifth and sixth tiers comprising a fifth material and an insulative sixth material, respectively;
forming a third opening to extend through the third stack to the second opening;
patterning a region of the third stack to pass the first staircase opening through the third stack;
forming a second staircase opening to extend into the third stack;
forming a channel-material-pillar within the first, second and third openings; the channel-material-pillar extending vertically through the first, second and third stacks and being electrically coupled with the conductive structure;
replacing at least some of the first, third and fifth materials with one or more conductive materials to thereby convert the first, third and fifth tiers to first, second and third conductive levels, respectively;
forming a first interconnect extending to one of the first and second conductive levels through the first staircase opening; and
forming a second interconnect extending to one of the third conductive levels through the second staircase opening.