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Experimental Demonstration of Sequence Recognition of Serial Memristors
Son Ngoc Truong,Khoa Van Pham,양원선,조안재,Huan Minh Vo,이미정,민경식 대한금속·재료학회 2017 ELECTRONIC MATERIALS LETTERS Vol.13 No.1
The sequence recognition is very essential in mimicking brain’s neocorticalfunction because most of input patterns to brain’s neocortex are dynamicallychanging over time, not static regardless of time. In this paper, we experimentallydemonstrate the sequence recognition for various input sequences using serialmemristors, for the first time. In this experiment, the serial memristors are used,which were fabricated with carbon fiber and aluminum film on glass substrate. Toverify the sequence recognition, we store the following 3 sequences in thefabricated serial memristors, which are ‘A’→‘B’→‘C’, ‘B’→‘A’→‘C’, and‘C’→‘B’→‘A’, respectively. By performing this experiment, it is verified theserial memristors are changed to Low Resistance State only when the inputsequence matches the stored one. When the input sequence is different from thestored one, the serial memristors remain unchanged. The simple voltagecomparator can be used to sense the output voltage to indicate whether thesequence matching happens or not. This experimental demonstration can be veryuseful to realize memristor crossbars which can process the temporal andsequential patterns in future.