Patent ID: 11935850
Assignee: NANYA TECHNOLOGY CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for fabricating a semiconductor device, comprising:
providing a substrate;
forming a first insulating layer above the substrate;
forming first slanted recesses along the first insulating layer; and
forming first slanted conductive layers in the first slanted recesses and a top conductive layer covering the first slanted conductive layers;
wherein the step of forming the first slanted recesses along the first insulating layer comprises:
forming a first hard mask layer on the first insulating layer;
forming first hard mask openings along the first hard mask layer;
performing a first slanted etch process on the first insulating layer to form the first slanted recesses along the first insulating layer; and
removing the first hard mask layer;
wherein the first slanted etch process uses the first hard mask layer as a pattern guide.