Patent ID: 11887646
Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method for manufacturing a semiconductor device, comprising:
forming a doped region in a substrate from a first main surface;
forming an insulating layer over the doped region of the substrate;
forming contacts in the insulating layer, the contacts extending into the doped region,
removing a portion of the substrate from a second main surface;
forming a trench, a first conductive line and a second conductive line from the doped region of the substrate through etching the substrate from the second main surface, wherein the trench extends through the substrate to expose the insulating layer, the first and second conductive lines are spaced apart from each other by the trench, and the contacts are positioned along and in contact with the first and second conductive lines; and
filling the trench with a dielectric material.