Scientists from Lancaster University report that we are close to combining SSD and RAM in one cell. "UltraRAM", as it is called, is described as a technology μνήμηs that “combines the non-volatility of a data storage memory, such as flash, with the speed, energy efficiency and durability of a working memory, such as DRAM.” 
The researchers detail their discovery in a recently published work.
The fundamental science behind UltraRAM technology is that it uses the unique properties of composite semiconductors, commonly used in photon devices such as LEDs, lasers and infrared detectors that can now be mass-produced.
The upcoming UltraRAM will offer "data storage times of at least 1.000 years". Fast data transfer speed, and resistance to cyclical erasures will be "one hundred to a thousand times better than flash drives". Add these qualities to the speed, energy efficiency and durability of DRAM. So the new type of memory will be very difficult to ignore by technology companies.
UltraRAM envisions to break the gap between RAM and storage. So, in theory, you could use it as a solution to meet very distinct requirements. On a PC system, this would mean that with an UltraRAM, say at 2TB, you would be able to meet your RAM needs as well as your storage needs.
