Selective Growth of B- and C-doped SiGe Layers in Unprocessed and Recessed Si Openings for pMOSFET Application
Autor: | Erik Trybom, Henry H. Radamson, Pooya Tabib Zadeh Adibi, Luigi Di Benedetto, Mohammad Shayestehaminzadeh, Mohammadreza Kolahdouz, Ali Afshar Farniya |
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Rok vydání: | 2009 |
Předmět: | |
Zdroj: | ECS Transactions. 25:81-88 |
ISSN: | 1938-6737 1938-5862 |
DOI: | 10.1149/1.3207578 |
Popis: | This work presents pattern dependency of selective epitaxial growth of boron- or carbon-doped SiGe layers in recessed or unprocessed openings. The layer profile and quality of epi-layers were found to be dependent on chip layout and the growth parameters. Carbon- and boron-doping compensated the strain in SiGe layers and when both dopants are introduced the strain reduction was additive. The incorporation of boron and carbon in SiGe matrix showed to be a competitive action. The concentration of carbon decreased when the boron amount increased in SiGe layers with higher Ge content. |
Databáze: | OpenAIRE |
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