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Inkjet printing of phase-change memory devices
The Chemistry and Materials Design group at ETH Zurich is looking for a highly motivated bachelor, semester, or master student for an interdisciplinary project across the fields of materials, chemistry, computer science, and electrical engineering.
Phase change memory (PCM) is an emerging data storage technology, where the information is stored in local bits, switching reversibly between high-resistance amorphous and low-resistance crystalline phases of a material (logical “0” and “1”, respectively). The data is written by heating to the crystallization temperature (SET process). Vice versa, amorphization by melting erases the data (RESET process). PCM devices are faster, more durable and offer greater scaling potential than siliconbased Flash technology. Additionally, PCM devices pave the way towards non-von Neumann architectures, enabling in-memory and brain-like neuromorphic computing. Traditionally, phase-change material films are deposited via sputtering techniques, lithography, and lift-off. Solution-phase deposition of chalcogenides such as inkjet printing at ambient temperature and pressure provides a low-cost and scalable alternative. Furthermore, inexpensive high-throughput printing methods are promising for rapid optimization and give access to new geometries of phase change memory devices (i.e., high-aspect ratio and multilayer arrays).
Keywords: phase-change memory, non-volatile memory, materials, chemistry, nano, thin films
Not specified
In this project, the additive manufacturing of phase change memory devices will be explored. A stateof-
the-art inkjet materials printer (Fujifilm Dimatix DMP-2850) will be used to deposit nanoparticles
and molecular precursors on different substrates. The printer will be set up, the parameters optimized,
and different materials explored. Finally, devices will be fabricated on tailor-made chips and
tested for feasibility and performance.
The project can be adapted based on the student’s interest and subject of study.
In this project, the additive manufacturing of phase change memory devices will be explored. A stateof- the-art inkjet materials printer (Fujifilm Dimatix DMP-2850) will be used to deposit nanoparticles and molecular precursors on different substrates. The printer will be set up, the parameters optimized, and different materials explored. Finally, devices will be fabricated on tailor-made chips and tested for feasibility and performance. The project can be adapted based on the student’s interest and subject of study.
Contact:
For further information and application please contact Prof. Maksym Yarema at yaremam@ethz.ch
Contact: For further information and application please contact Prof. Maksym Yarema at yaremam@ethz.ch