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- W2295775393 abstract "The design of nanoscale CMOS devices brings new challenges to TCAD community. Indeed, nowadays, CMOS performances improvements are not simply due to device scaling but also to the introduction of new technology “boosters” such as new transistors architectures (FDSOI, trigate), high-k dielectric gate stacks, stress engineering or new channel material (Ge, III-V). To face all these new technological challenges, Technology Computer Aided Design (TCAD) is a powerful tool to guide the development of advanced technologies but also to reduce development time and cost. In this context, this PhD work aimed at improving the modeling for 28/14 and 10FDSOI technologies, with a particular attention on mechanical strain impacts. In the first section, a summary of the main models implemented in state of the art device simulators is performed. The limitations and assumptions of these models are highlighted and developments of the in-house STMicroelectronics KG solvers are discussed. In the second section, a “top down” approach has been set-up. It has consisted in using advanced physical-based solvers as a reference for TCAD empirical models calibration. Calibrated TCAD reproduced accurately split-CV mobility measurements varying the temperature, the back bias and the Interfacial Layer (IL) thickness. The third section deals with a description of the methodologies used during this thesis to model stress induced by the process flow. Simulations are compared to nanobeam diffraction (NBD) strain measurements. The use and calibration of available TCAD models to efficiently model the impact of stress on mobility in a large range of stress (up to 2GPa) is also discussed in this section. The last part deals with TCAD modeling of advanced CMOS devices for 28/14 and 10FDSOI technology development. Mechanical simulations are performed to model the stress profile in transistors and several solutions to optimize the stress configuration in sSOI and SiGe-based devices have been presented." @default.
- W2295775393 created "2016-06-24" @default.
- W2295775393 creator A5016511737 @default.
- W2295775393 date "2015-12-18" @default.
- W2295775393 modified "2023-09-27" @default.
- W2295775393 title "Development of TCAD modeling for low field electronics transport and strain engineering in advanced Fully Depleted Silicon On Insulator (FDSOI) CMOS transistors" @default.
- W2295775393 hasPublicationYear "2015" @default.
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