General information
Organisation
The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :
• defence and security,
• nuclear energy (fission and fusion),
• technological research for industry,
• fundamental research in the physical sciences and life sciences.
Drawing on its widely acknowledged expertise, and thanks to its 16000 technicians, engineers, researchers and staff, the CEA actively participates in collaborative projects with a large number of academic and industrial partners.
The CEA is established in ten centers spread throughout France
Reference
2024-33695
Description de l'unité
BiCMOS technology is essential for 5G and future 6G applications, as it integrates bipolar transistors for RF functions, such as power amplification, with CMOS transistors for control functions. However, in 6G, the bipolar transistor is pushed to its limits, raising concerns about overall reliability. In particular, device instabilities are sometimes observed, triggered by the high stress current passing through the transistor. These instabilities affect the transistor's noise characteristics, which are crucial for certain RF applications. In this context, it is critical to understand the root causes of these instabilities and identify the technological adjustments that can be made to eliminate them, ensuring both performance and reliability standards are met.
Position description
Category
Micro and nano technologies
Contract
Fixed-term contract
Job title
Engineer in Electrical Characterization and Reliability of transistors for RF applications
Socio-professional category
Executive
Contract duration (months)
36
Job description
Your work will mainly focus on the study of the DC reliability of bipolar transistors of an industrial BiCMOS technology. It will be carried out in close collaboration with our industrial partner STMicroelectronics. Your work is manifold. It will first consists in a systematic study of the device instabilities with respect to many process variants (base & collector junction profile variants, trench isolation ...). The samples will mainly be provided by our partner. Then the device self-heating will be investigated as well as its impact on these instabilities. Finally, the role played by these instabilities on device noise characteristics will be addressed. You use the test procedures already developed within the electrical characterization laboratory of LETI. This task will come along TCAD simulations. They will be useful to understand which defects can be responsible for these instabilities. You are part of the Advanced Transistor Laboratory (LTA).
More broadly, you are in charge of :
- The electrical characterization of bipolar devices using dedicated test benches,
- The development of new characterizations allowing a better understanding of the instabilities seen in these transistors,
- A regular reporting to project teams, and to our industrial partner, in order to interpret the results obtained and to propose levers for improving components.
Why join our team? We can offer you :
- Experience at the cutting edge of innovation, with strong potential for industrial development,
- Training to reinforce your skills or acquire new ones,
- A position in the heart of the Grenoble metropolitan area, easily accessible via the soft mobility encouraged by the CEA,
- 85% contribution to public transport costs,
- A recognized work-life balance,
- A policy of diversity and inclusion,
- Company restaurants,
- An active CSE in terms of leisure and extra-professional activities,
- A savings scheme matched by the CEA.
Applicant Profile
Initial formation
Graduate engineer (Bac +5) or PhD (Bac +8) with strong experience in the field of semiconductor physics, electrical characterization of bipolar or CMOS devices, and if possible with a good knowledge of reliability mechanisms. Experience in TCAD modeling (synopsys) would be a must.
Technical skills
- Knowledge of semiconductor physics
- DC electrical characterization of bipolar transistors
- Fluent English essential (reporting and presentations)
In line with CEA's commitment to integrating people with disabilities, this job is open to all. The CEA offers accommodations and/or organizational possibilities. Join us !
Position location
Site
Grenoble
Job location
France, Auvergne-Rhône-Alpes, Isère (38)
Location
Grenoble
Candidate criteria
Languages
English (Fluent)
Recommended training
Engineer or PhD
Requester
Position start date
03/03/2025
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