Novel Rewritable, Non-volatile Memory Devices Based on Thermally and Dimensionally Stable Polyimide Thin Films

Novel digital memory devices were fabricated with a thermally and dimensionally stable polyimide containing carbazole moieties in its side groups by using a simple and conventional solution coating process. The devices exhibit excellent unipolar ON and OFF switching behavior. With very low power consumption, the devices can be repeatedly written, read, and erased in air. The ON/OFF current ratio of the devices is high up to 1011. The high ON/OFF switching ratio and stability of the devices, as well as their repeatable writing, reading, and erasing capability with low power consumption, open up the possibility of the mass production of high performance non‐volatile memory devices at low cost. Novel digital memory devices are fabricated with thermally and dimensionally stable polyimide containing carbazole moieties in its side groups using a simple and conventional solution coating process. The devices have programmable, rewritable, non‐volatile memory characteristics with a high ON/OFF current ratio (103–1011) and high electrical stability, so their fabrication opens up the possibility of the low‐cost mass production of high‐performance, rewritable, non‐volatile polymer memory devices.