Researchers have developed a new way to print integrated circuits (ICs) using screen printing in only a few processing steps.
The team, comprised of researchers from Linköping University and RISE, Campus Norrköping, were able to print complete ICs with more than 100 organic electrochemical transistors with a line width of about 100 micrometers.
The key is ensuring that different layers end up in exactly the right place and the screen printing frames can mesh so that they can print extremely fine lines. Researchers said that they have spent many years working to develop the right printing ink with the right properties to enable this method of printing ICs.
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