Thesis, internship, and post-doc opportunities
169 results found
[Thèse]
Study of shrink effects on PCM cells sub-45nm (Confined structure, CVD-PVD, etching, etc.).
Offer N°: 2280
Innovative concepts are being actively developed to overcome the limitations of standard non volatile memories based on charge storage beyond the 30nm technology node. Among those, phase change memories (PCM) that rely on a reversible amorphous to crystalline transition of chalcogenide materials are attractive due both to their performances in terms of non volatility, writing speed, cyclability and to their simple fabrication process.
Innovative concepts are being actively developed to overcome the limitations of standard non volatile memories based on charge storage beyond the 30nm technology node. Among those, phase change memories (PCM) that rely on a reversible amorphous to crystalline transition of chalcogenide materials are attractive due both to their performances in terms of non volatility, writing speed, cyclability and to their simple fabrication process. However, integration issues are raised by the reduction of the size of the phase change volume, eg the degradation of the active material during the fabrication process. The objective of the proposed study is the realisation and characterisation of sub-45nm PCM devices, which will allow assessing different cell design and integration scheme together with various deposition techniques (CVD, PVD) and patterning method (IBE, RIE).
[Thèse]
New Hybrid Architectures : Logic / Non-volatile Memories and associated technologies
Offer N°: 2270
Latest technological advances will allow the fabrication of « backend » devices in which elementary storage nodes are included during the final fabrication steps of VLSI circuits (“back-end” integration). The application potentials of these new memories are not limited to ultra-high densities, but also cover embedded applications.
Latest technological advances will allow the fabrication of « backend » devices in which elementary storage nodes are included during the final fabrication steps of VLSI circuits (“back-end” integration). The application potentials of these new memories are not limited to ultra-high densities, but also cover embedded applications. By stacking these emerging memories in the third dimension of CMOS circuit interconnection levels, new functions, based on innovative 3D architectures are made possible. For example: hyper-parallel data transfer (“ultra-high bandwidth”), re-configurable logic circuits and low-power logic. The work of this PhD will be performed at the interface of several LETI activities, focusing on “device technology” and “architecture development”.
[Thèse]
Evaluation of the OxRAM-based « memrystor » technology in view of the design of neuro-mimetics computing architectures
Offer N°: 2244
The field of new computing architectures based on alternatives technologies is currently a very important topic of research. In particular, recently, researchers at HP Labs have claimed the existence of a fourth basic element of integrated circuits that could make it possible to develop computers that turn on and off like an electric light.
The field of new computing architectures based on alternatives technologies is currently a very important topic of research. In particular, recently, researchers at HP Labs have claimed the existence of a fourth basic element of integrated circuits that could make it possible to develop computers that turn on and off like an electric light. The memristor — short for memory resistor - could make it possible to develop far more energy-efficient computing systems with memories that retain information even after the power is off, so there's no wait for the system to boot up after turning the computer on. It may even be possible to create systems with some of the pattern-matching abilities of the human brain. In this context, the LETI and LIST laboratories of CEA are currently developing devices and design circuits suitable for neuro-mimetic computing. The research work planned in this PhD will cover two domains. On one side, the PhD student will study and fabricate the “Oxide resistive RAM” (OXRAM) technology at LETI (Grenoble) to be integrated in memristor memory matrix. On the other hand, the PhD student will work in close collaboration with the CEA-LIST (Saclay) in order to explore the best circuit architectures for the design of neuro-mimetic circuits based on the OxRAM technology. Finally, the idea will be to design and fabricate an hybrid memristor/CMOS circuit architecture.
[Thèse]
Study of chemically functionnalized Si nano-devices applied to biological detection in liquid environment
Offer N°: 2272
The detection and quantification of chemical species and biological markers (DNA, antibodies, cancer markers) are crucial in the fields of health and life science for applications such as medical diagnosis or the identification of molecules to develop medicine. Novel detection methods based on electronic devices are highly promising compared to traditional techniques (e.g. fluorescence, mass detection, pH...) in terms of resolution and potential for integration in complex systems.
The detection and quantification of chemical species and biological markers (DNA, antibodies, cancer markers) are crucial in the fields of health and life science for applications such as medical diagnosis or the identification of molecules to develop medicine. Novel detection methods based on electronic devices are highly promising compared to traditional techniques (e.g. fluorescence, mass detection, pH...) in terms of resolution and potential for integration in complex systems. This PhD is part of an ongoing project at LETI whose goal is to evaluate electrical biological detection based on a CMOS technology in real biological conditions. The long-term application that is aimed is the development of a portable/point of care miniaturized system. The work will be conducted in collaboration with the CLSE laboratory (Swiss up chair in engineering) at EPFL, specialized in the design and characterization of electrical integrated sensors, sensitive to biological molecular species.
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