Low-Frequency Noise Assessment of Different Ge pFinFET STI Processes

An experimental low-frequency noise (LFN) assessment of long channel Ge pFinFET devices fabricated in different shallow trench isolation (STI) processes is presented, taking into consideration devices with fin widths from 100 nm (planar-like) down to 20 nm. In addition, the correlation among LFN par...

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Detalhes bibliográficos
Autores: Oliveira, Alberto V. de, Simoen, Eddy, Mitard, Jerome, Agopian, Paula G. D. [UNESP], Martino, Joao Antonio, Langer, Robert, Witters, Liesbeth, Collaert, Nadine, Thean, Aaron Voon-Yew, Claeys, Cor
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:Brasil
Recursos:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/159109
Acesso em linha:http://dx.doi.org/10.1109/TED.2016.2598288
http://hdl.handle.net/11449/159109
Access Level:acceso abierto
Palavra-chave:Ge pFinFET
low-frequency noise (LFN)
shallow trench isolation (STI) first
STI last
Descrição
Resumo:An experimental low-frequency noise (LFN) assessment of long channel Ge pFinFET devices fabricated in different shallow trench isolation (STI) processes is presented, taking into consideration devices with fin widths from 100 nm (planar-like) down to 20 nm. In addition, the correlation among LFN parameters, hole mobility and threshold voltage, is also evaluated. The carrier number fluctuation (Delta N) model is confirmed as dominant mechanism for all studied Ge pFinFETs and there is no correlation with the used STI process. From the LFN, it is evidenced that the Coulomb scattering mobility mechanism plays an important role for STI-first process, resulting in a mobility degradation.