Investigation of Boron Distribution at the SiO2/Si Interface of Monolayer Doping

Autor: Chia-Chen Wan, Yao-Jen Lee, Ta-Chun Cho, Shu-Han Hsu
Rok vydání: 2021
Předmět:
Zdroj: ACS Omega, Vol 6, Iss 1, Pp 733-738 (2021)
ISSN: 2470-1343
DOI: 10.1021/acsomega.0c05282
Popis: Monolayer doping is a possible method for achieving complex-geometry structures with different semiconductors. Understanding the dopant diffusion behavior of monolayer doping, especially under different heating sources, is essential for further improvement. We examine and compare the doping profile and dopant activation with two different heating sources (rapid thermal annealing and microwave annealing), especially focused on SiO2/Si interface. These heating sources are used for junction diode fabrication, to realize current switching behavior. Direct observations of monolayer doping profiles, especially inside the capping oxide, are discussed to provide quantitative information for dopant concentration. This can provide significant information for better tuning of surface chemistries and process protocols applied in monolayer doping methodologies.
Databáze: OpenAIRE