Abstract
**Please read the paper on the following link:** https://1worldcontent.com/ess/9069.pdf **Abstract:** This paper discusses the effect of back-end of line (BEOL) process on cell performance for a Phase-Change Memory embedded in a 28nm FD-SOI platform (ePCM). The impact of BEOL is first shown by describing the microscopic evolution of the active Ge-rich GST alloy during process. Ge clustering has been proven to occur during the fabrication process, impacting the pristine resistance and the after forming cell performance. Two different BEOL processes are then benchmarked in terms of key performance. An optimized process is then identified, and an extensive electrical characterization of array performance and reliability is performed on the full 16MB chip. The optimized BEOL process results in a memory cell fully compatible with the requirements for demanding automotive applications.
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