Patent ID: 11894298
Assignee: SANDISK TECHNOLOGIES, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. The semiconductor structure of claim 12, further comprising:
retro-stepped dielectric material portions overlying stepped surfaces of the alternating stack;
a pair of insulating spacers laterally spaced apart from each other, vertically extending from a bottommost layer of the alternating stack to a topmost layer of the alternating stack, and contacting each layer within the alternating stack; and
a pair of backside contact via structures laterally surrounded by a respective one of the pair of insulating spacers,, wherein:
each of the electrically conductive layers consists of a respective crystalline metallic liner and a respective metallic fill material portion; and
all surfaces of the dielectric metal oxide layers a rein contact with a respective one of the electrically conductive layers, the pair of insulating spacers, the retro-stepped dielectric material portions, the blocking dielectric metal oxide layers of the memory opening fill structures, and the silicon oxide liners within the memory opening fill structures, and the insulating layers.