programmable metallization cell - Computer Definition
A non-volatile, random-access memory technology that is designed to initially replace flash memory, and eventually DRAM memory. Also called "solid electrolyte" (SE) memory and "nano-ionic" memory, the programmable metallization cell (PMC) was invented by Dr. Michael Kozicki at Arizona State University. It is licensed to manufacturers by Axon Technologies Corporation (www.axontc.com), which was founded by Victor Lyn and Dr. Kozicki in 1996. Commercial products are expected from licensees in the 2010 time frame. Microminiaturized Electroplating Programmable metallization cells work by creating a conductive bridge across a solid electrolyte channel that changes the resistance in the cell. Using a process akin to electroplating silverware, but at the nanoscale level, a tiny silver or copper wire is formed between two electrodes. The wire retains its structure without power until it is broken apart electrochemically. Reading is accomplished by applying a voltage to the cell at one end and sensing the current or lack thereof at the other end. See future memory chips.