ReRAM sees high temperature qualification, first 22nm wafers
Weebit Nano has qualified its Resistive Random-Access Memory (ReRAM) IP module on a 130nm CMOS process at temperatures of up to 125 °C for Grade-1 automotive applications.
The qualification is based on a one-transistor one-resistor (1T1R) memory module and uses the previous qualification of Weebit ReRAM IP at these temperatures and is now ready for production tapeout at SkyWater Technologies in the US.
Weebit has also received its first wafer back on 22nm fully depleted silicon on insulator (FD-SOI) process at another fab, GlobalFoundries.
The Sykwater qualification demonstrates the quality and repeatability of Weebit’s embedded ReRAM IP for applications requiring high-temperature reliability. This includes various industrial, IoT, and aerospace products, as well as automotive components that need to be qualified for operation at 125 degrees Celsius in applications which have lifetimes in excess of 10 years. The qualification was performed to the JEDEC industry standards for non-volatile memory (NVM).
Adding the resistive RAM to the S130 process by SkyWater will support a wider range of system on chip architectures in automotive and industrial applications.
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“We are continuing to progress our discussions with potential customers who we anticipate will adopt Weebit ReRAM in 2024 and beyond,” said Coby Hanoch, CEO of Weebit Nano.
“We are continuing to accelerate Weebit’s path towards more advanced geometries where embedded flash is unable to scale. Weebit ReRAM in a 22nm process such as 22FDX offers a low-power, cost-effective embedded NVM solution which can withstand harsh environmental conditions,” said Hanoch. “With this latest development, we are one step closer to providing Weebit ReRAM as a commercial solution in 22nm for customers’ innovative SoCs targeting applications in areas such as IoT, 5G, edge AI and automotive.”
John Sakamoto, SkyWater President and COO, said: “SkyWater’s proven CMOS technologies have been used reliably for decades in automotive, aerospace, industrial and medical applications. Customers across these markets are increasingly looking to embed advanced NVM in their chips to add functionality and differentiation. With the recent qualification, we expect to see even more interest in Weebit ReRAM among customers who are looking for NVM that can extend to 125 degrees Celsius. We are delighted to mark another qualification milestone with Weebit.”
The 22FDX wafers are the first wafers with Weebit ReRAM manufactured in 22nm, one of the industry’s most steadfast process nodes, and a geometry where embedded flash is not viable. The silicon wafers will continue to undergo testing.
The Weebit ReRAM IP module is available with full support in SkyWater’s S130 process design kit.
www.weebit-nano.com/reram-s130; https://www.skywatertechnology.com/cmos/; www.gf.com
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