An integrated assembly, comprising:
- a semiconductor material;
- a stack of alternating levels over the semiconductor material;
- a partition extending through the stack and comprising wall regions, and comprising corner regions where two or more wall regions meet;
- and
- the semiconductor material comprising a first portion which extends directly under the corner regions, and comprising a second portion which is directly under the wall regions;
- the first portion comprising a first thickness of the semiconductor material and the second portion comprising a second thickness of the semiconductor material;
- the first thickness being greater than the second thickness.