4DS Memory Limited (4DS) is an Australia-based semiconductor company, which is principally engaged in the development of a non-volatile memory technology known as interface switching resistive random-access memory (ReRAM) for gigabyte storage class memory. The Company owns a patented Internet protocol (IP) portfolio, which is developed to create high-density gigabyte storage. 4DS has its research and development facilities located in Fremont in Silicon Valley, the United States. In collaboration with imec in Belgium, the Company is developing a production-compatible process for the 300 millimeter production tools that memory makers use to fabricate high-density high-volume memories to use in a production-compatible process to build a 4DS megabit memory.

Sales Analysis. Sales fell dramatically in 2021: 4DS Memory Ltd reported sales of A$6,832.00 (US$4.95 thousand) for the fiscal year ending June of 2021. This represents a sharp decrease of 79.6% versus 2020, when the company's sales were A$33,511.00 .