Automotive PCM-on-FDSOI ready for prototyping

Phase-change memory as an embedded non-volatile memory for 28nm automotive microcontrollers is at a "very advanced" stage of development with a lead customer, according to Jean-Marc Chery, chief operating officer of STMicroelectronics.

By Peter Clarke, EENews Europe, May. 22, 2017 – Chery revealed that phase-change memory had been selected as the non-volatile memory for 28nm fully-depleted silicon-on-insulator (FDSOI) manufacturing process during a presentation at ST's Capital Markets Day held in London, May 11 (see ST opts for phase-change memory on 28nm FDSOI). He also said that the technology was being aimed initially at automotive applications.

Chery told eeNewsEurope: "We are very advanced with a customer. The technology is ready for prototyping; production will be next year." However, Chery added that nature of automotive qualification means that full mass production of automotive 28nm PCM-on-FDSOI microcontrollers may take longer.

Phase-change memory based on germanium-antimony-tellurium GeSbTe chalcogenide materials have been under research for more than 50 years and its introduction as an IC memory has been blighted by technical problems with voltage level drift, thermal performance and thermal cross-talk in the memory array, which in turn effect data retention and cycling endurance

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