Weebitnano Patent and what is ReRAM? Recently, Weebit Nano Ltd filed a patent describing new technologies in the field of ReRAM. So what is ReRAM, what does the patent describe, and how can ReRAM help with memory technologies of the future? What is ReRAM? Resistive Random-Access-Memory, or ReRAM, is a memory technology that uses electrical resistance to store information. However, the resistive memory used can change its resistance depending on how much current has flowed through it, and thus this allows the memory to be reprogrammable. ReRAM, unlike DRAM, is non-volatile meaning that it remembers the contents of its memory even when power is removed. Furthermore, the ability to retain its data also removes the need for refresh cycles, reducing the complexity of designs when using ReRAM with processors.