학술논문

TaN thin film study for Superconducting BEOL integration
Document Type
Conference
Source
2023 IEEE International Interconnect Technology Conference (IITC) and IEEE Materials for Advanced Metallization Conference (MAM)(IITC/MAM) Advanced Metallization Conference (MAM)(IITC/MAM), 2023 IEEE International Interconnect Technology Conference (IITC) and IEEE Materials for. :1-3 May, 2023
Subject
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Superconducting materials
Superconducting thin films
Metallization
Etching
Superconducting epitaxial layers
Dielectrics
Superconducting BEOL
patterning approach
Ta
TaN
Language
ISSN
2380-6338
Abstract
Superconducting materials integration is one of the emerging subjects for quantum applications. This paper proposes an integration scheme based on superconducting layer etching. A material selection is proposed for interconnections including metal and dielectric. Then, a focus is realised on TaN layers as a potential technological choice. The deposition process window is explored in term of N 2 flow and thickness leading to a T c up to 2 K for 40 nm of TaN.