Weebit Nano receives first wafers manufactured with embedded Weebit ReRAM

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Weebit Nano, a developer of next-generation memory technologies, and SkyWater Technology have unveiled the first silicon wafers that integrate Weebit’s embedded Resistive Random-Access Memory (ReRAM) module.

Delivered to Weebit from SkyWater’s US production fab, this is the first time silicon wafers of Weebit ReRAM have been received from a production fab, a major milestone toward the commercialisation of the technology.

Manufacturing of Weebit ReRAM is now proven with standard tools and a mature process flow, that will make it easier for customers to adopt this non-volatile memory (NVM) in the development of system-on-chip (SoC) designs. The silicon wafers will be sliced into chips, packaged, and then tested and qualified.

The chips, which were manufactured in SkyWater’s 130nm CMOS process, will be used for customer demonstrations, testing and prototyping ahead of commercial orders and volume production, allowing customers to confidently start designing SoCs using these ReRAM modules.

SkyWater’s 130 nm process has been used reliably for billions of devices and the automotive-grade, extended temperature, mixed-signal CMOS platform is suited for IoT and edge computing as it enables a combination of both digital and analogue circuit performance with embedded NVM for a wide range of SoC architectures.

Coby Hanoch, CEO of Weebit Nano, said, “This is the first time we’ve received ReRAM wafers from a production fab – a huge milestone towards commercialisation that has been achieved on-time through our close partnership with SkyWater. This increases the confidence of potential customers in our IP, pushing forward companies interested in engaging with us, and we’re seeing discussions with potential customers ramping up as we get closer to production. The demo chips produced by SkyWater integrating Weebit’s ReRAM module are enabling these companies to see the true advantages our technology can provide.”

The demo chips comprise a full sub-system for embedded applications, including the Weebit ReRAM module, a RISC-V microcontroller (MCU), system interfaces, memories and peripherals. Weebit’s embedded ReRAM module includes a 256Kb ReRAM array, control logic, decoders, IOs (Input/Output communication elements) and error correcting code (ECC). 

It is designed with unique patent-pending analogue and digital smart circuitry running smart algorithms that significantly enhance the memory array’s technical parameters.  It also supports an extended temperature range, 10 years’ data retention at high temperatures, fast access time, and extremely low standby power.

Full qualification of the highly integrated demo chips in SkyWater’s U.S. production fab is expected to be completed in the first half of 2023.