The qualification, using Weebit’s demo chips incorporating its ReRAM module, was performed based on well-known JEDEC industry standards for non-volatile memories (NVMs). It confirmed the suitability of Weebit’s embedded technology for volume production.
The JEDEC standards impose rigorous testing of many silicon dies blindly selected from three independent wafer lots, as well as collecting a significant data set for detailed analysis. Obtaining in-depth statistics with a standards-based approach is key to showing the maturity of Weebit’s ReRAM.
All the dies successfully passed the entire set of qualification tests, demonstrating the quality, repeatability and reliability of Weebit’s ReRAM, and confirming its suitability for volume production as embedded IP.
The results of the qualification show high endurance, long data retention before and after endurance testing, as well as industrial-grade high-temperature stability:
- High endurance: 10K cycles (flash equivalent) endurance
- 10 years’ data retention before and after endurance testing
- Industrial-grade high-temperature stability – up to 85°C
- 3x SMT cycles (by itself a powerful retention test)
These represent key advantages of Weebit ReRAM compared to other embedded NVM technologies.
Weebit is now working to extend the qualification to even higher temperatures and endurance levels.
The Weebit ReRAM demo chip comprises a full sub-system for embedded applications, including the Weebit ReRAM module, a RISC-V microcontroller (MCU), system interfaces, memories and peripherals. The ReRAM module includes a 128Kb ReRAM array, control logic, decoders, IOs (Input/Output communication elements) and error correcting code (ECC). It is designed with unique patent-pending analog and digital smart circuitry running smart algorithms that significantly enhance the memory array’s technical parameters.
Approved for release by the Board of
About
Weebit’s ReRAM allows semiconductor memory elements to be significantly faster, less expensive, more reliable and more energy efficient than those using existing Flash memory solutions. As it is based on fab-friendly materials, the technology can be quickly and easily integrated with existing flows and processes, without the need for special equipment or large investments.
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