Patent ID: 11942466
Assignee: KIOXIA CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method for manufacturing a memory device, comprising:
forming an oxide layer on a first substrate by anodic oxidation, the oxide layer including a plurality of first holes arranged at first intervals and a plurality of second holes arranged at second intervals;
forming a plurality of memory units in the first holes, respectively and forming a plurality of first mark portions in the second holes, respectively;
forming a first insulating layer on the oxide layer, the first insulating layer including a first pad in a first surface of the first insulating layer; and
bonding the first surface of the first insulating layer, to a second surface of a second substrate on which a second pad is provided, a position of the first substrate and a position of the second substrate being aligned with each other based on the plurality of first mark portions and a second mark portion of the second substrate, the plurality of first mark portions and the second mark portion being electrically isolated from the plurality of memory units and a circuit of the second substrate.