Invention Grant
- Patent Title: ReRAM cells including TaXSiYN embedded resistors
- Patent Title (中): ReRAM单元包括TaXSiYN嵌入式电阻
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Application No.: US14464171Application Date: 2014-08-20
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Publication No.: US08969129B2Publication Date: 2015-03-03
- Inventor: Chien-Lan Hsueh , Randall J. Higuchi , Mihir Tendulkar
- Applicant: Intermolecular Inc.
- Applicant Address: US CA San Jose
- Assignee: Intermolecular, Inc.
- Current Assignee: Intermolecular, Inc.
- Current Assignee Address: US CA San Jose
- Main IPC: H01L29/02
- IPC: H01L29/02 ; H01L45/00 ; H01L27/24

Abstract:
Provided are resistive random access memory (ReRAM) cells and methods of fabricating thereof. A ReRAM cell includes an embedded resistor and a resistive switching layer connected in series with this resistor. The resistor is configured to prevent over-programming of the cell by limiting electrical currents through the resistive switching layer. Unlike the resistive switching layer, which changes its resistance in order to store data, the embedded resistor maintains a substantially constant resistance during operation of the cell. The embedded resistor is formed from tantalum nitride and silicon nitride. The atomic ratio of tantalum and silicon may be specifically selected to yield resistors with desired densities and resistivities as well as ability to remain amorphous when subjected to various annealing conditions. The embedded resistor may also function as a diffusion barrier layer and prevent migration of components between one of the electrodes and the resistive switching layer.
Public/Granted literature
- US20140357046A1 ReRAM Cells Including TaXSiYN Embedded Resistors Public/Granted day:2014-12-04
Information query
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