Weebit Nano launches ReRAM module that meets automotive grade temperature requirements

On August 1, Weebit Nano Limited, a developer of storage technology in the semiconductor industry, announced that its resistive random access memory (ReRAM) module has fully complied with the specified temperature requirements for automotive Level 1 non-volatile memory (NVM), which is 125°C. . This demonstrates Weebit ReRAM’s suitability for microcontrollers and other automotive components as well as high-temperature industrial and IoT applications.

This temperature test used a Weebit demonstration chip, which was manufactured by R&D partner CEA-Leti in accordance with JEDEC non-volatile memory industry standards. Such standards involve rigorous testing of many silicon chips blindly selected from three separate wafer lots.

Most chips used in consumer and industrial applications need to be tested at temperatures from 0 to 85°C for up to 10 years. Testing for advanced automotive components is even more stringent, requiring qualification testing at higher temperatures for 10 years or more without any failure. All Weebit chips have successfully passed a complete set of 10-year qualification tests at 125°C, proving that Weebit's embedded ReRAM IP meets quality and repeatability standards and can be used in applications requiring high temperatures and reliability.

Image source from Weebit Nano official website

Coby Hanoch, CEO of Weebit Nano, said: “Successful qualification is part of Weebit Nano’s project through which we will expand ReRAM (RRAM) technology to higher temperatures, longer retention times and higher durability levels. In our discussions with Tier 1 foundries and semiconductor companies, we are increasingly interested in our ReRAM for automotive and industrial applications. Being able to demonstrate the degree of resiliency of Weebit ReRAM at high temperatures will continue to drive discussions. We believe that compared to other emerging non-volatile memories (NVM), ReRAM is a better choice for automotive and industrial applications due to its superior high-temperature performance, low complexity, high cost-effectiveness and other advantages such as radiation resistance and electromagnetic interference tolerance."

Simone Bertolazzi, chief technology and market analyst for the memory division of Yole Intelligence, a subsidiary of Yole Group, said: "Embedded ReRAM outperforms flash memory in terms of performance indicators such as programming time, durability and power consumption, making it an ideal choice for automotive applications. Since the main generation The number of embedded ReRAM wafers is expected to grow at a compound annual growth rate of greater than 80% between 2022 and 2028 due to increased demand from factories and leading automotive MCU suppliers. Against this backdrop, Weebit's ReRAM can. Weebit Nano works with industry leaders to pioneer resistive memory technology for chip designers by moving lower cost to the advanced process nodes on which modern automotive chips are designed. opportunities to help create automotive circuits that are more balanced in performance, power consumption and cost.

The Weebit ReRAM demonstration chip consists of a complete subsystem for embedded applications, including the Weebit ReRAM module, RISC-V microcontroller (MCU), system interfaces, memory and peripherals. The ReRAM module includes a 128KB 1T1R ReRAM array, control logic, decoder, IO (input/output communication element) and error correction code (ECC). It uses unique patent-pending analog and digital circuit design and runs intelligent algorithms to greatly improve the technical parameters of the memory array. Weebit will continue to work with CEA-Leti and SkyWater Technology to extend the certification of its ReRAM modules to higher temperature and endurance levels.