Israeli company Weebit Nano Limited, specializing in the development of next-generation computer memory technologies, has introduced the first examples of chips with a built-in resistive memory ReRAM array whose cells are memistor elements. Experienced chips are a complete and full-featured system-on-chip (Chip-on-Chip, SoC) and potential customers who purchase these chips will be able to test and evaluate the benefits of the soon-to-be-available Weebit ReRAM technology. It will be mass produced and sold on the commercial market.

The development of the chip was carried out by experts from Weebit Nano and CEA-Leti. Obtained in December from one of the manufacturers, silicon wafers were cut into individual chips and then packaged in appropriate cases. Then began the first test phase, which consisted of writing, reading and checking the entire ReRAM memory array, testing the operation of intelligent error correction algorithms, and other manipulations with the data stored in memory.

This was followed by testing of the SoC system as a whole, including testing the various communication interfaces and system peripherals surrounding the RISC-V computing core. This test did not yield unexpected results, the entire system, including the software, worked as expected.

In the next stages, prototype chips will be used to measure the actual characteristics of the computer system, comparing this to theoretical values ​​will show whether the technology is ready for further commercialization or requires some further improvements and modifications.

If the position of the stars supports Weebit Nano’s plans, the next step will be to start chip production at SkyWater Technology’s US facility. Now the required capacities are reserved and prepared there, so the production of chips can be started almost at any time. Finally, Weebit Nano Limited plans to make Weebit ReRAM technology available to everyone so that they can use ReRAM memory in SoC systems and microcontrollers of their own design and manufacture.