Patent ID: 11871554
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 1:
2. The method manufacturing of a semiconductor structure of claim 1, wherein forming the to-be-etched body comprises:
forming a substrate material layer, a plurality of first grooves, which are distributed at intervals along the first direction and extend along the second direction, being formed on one side surface of the substrate material layer;
forming a first insulating layer, the bit line and a second insulating layer in each first groove, the bit line being located on one side of the first insulating layer facing away from a bottom of the first groove, the second insulating layer being located on one side of the bit line facing away from the bottom of the first groove; and
removing the substrate material layer on one side, facing an opening of the first groove, of a plane of the bottom of the first groove so as to form the remaining substrate material layer into the base substrate, and filling a third insulating layer at a position of a removed substrate material layer so as to form the third insulating layer, the first insulating layer and the second insulating layer into the insulator.