Investigation of Boron Gas Mixtures for Beamline Implant

Autor: Oleg Byl, Ying Tang, Yedave Sharad N, Joseph R. Despres, Joseph D. Sweeney
Rok vydání: 2016
Předmět:
Zdroj: 2016 21st International Conference on Ion Implantation Technology (IIT).
DOI: 10.1109/iit.2016.7882884
Popis: Beamline implant productivity challenges associated with high dose p-type boron doping have been well documented. Recently, BF3/H2 mixtures were shown to be an effective alternative to BF3 in enabling implant tool productivity improvements through the extension of ion source life - which is accomplished with hydrogen's ability to interrupt the halogen cycle that otherwise is responsible for depositing tungsten on sensitive ion source components [1]. Presented here are additional studies of boron mixtures with the goal of further improving ion source performance. Specific mixtures tested include various compositions of BF3/B2H6 as well as BF3/B2H6/H2. Beam current and mixture stability are examined, and ion source condition observations are provided.
Databáze: OpenAIRE