Invention Publication
- Patent Title: METHOD OF FORMING AN INTEGRATED CIRCUIT STRUCTURE INCLUDING A RESISTIVE RANDOM ACCESS MEMORY (RRAM) CELL
-
Application No.: US18600826Application Date: 2024-03-11
-
Publication No.: US20240215464A1Publication Date: 2024-06-27
- Inventor: Yaojian Leng
- Applicant: Microchip Technology Incorporated
- Applicant Address: US AZ Chandler
- Assignee: Microchip Technology Incorporated
- Current Assignee: Microchip Technology Incorporated
- Current Assignee Address: US AZ Chandler
- The original application number of the division: US17379181 2021.07.19
- Main IPC: H10N70/00
- IPC: H10N70/00 ; H10N70/20

Abstract:
Resistive random access memory (RRAM) cells, for example conductive bridging random access memory (CBRAM) cells and oxygen vacancy-based RRAM (OxRRAM) cells are provided. An RRAM cell may include a metal-insulator-metal (MIM) structure formed between adjacent metal interconnect layers or between a silicided active layer (e.g., including MOSFET devices) and a first metal interconnect layer. The MIM structure of the RRAM cell may be formed by a damascene process including forming a tub opening in a dielectric region, forming a cup-shaped bottom electrode in the tub opening, forming a cup-shaped insulator in an interior opening defined by the cup-shaped bottom electrode, and forming a top electrode in an interior opening defined by the cup-shaped insulator. The cup-shaped bottom electrode, or a component thereof (in the case of a multi-layer bottom electrode) may be formed concurrently with interconnect vias, e.g., by deposition of tungsten or other conformal metal.
Public/Granted literature
- US12250891B2 Method of forming an integrated circuit structure including a resistive random access memory (RRAM) cell Public/Granted day:2025-03-11
Information query