Communications of the ACM
Inkjet-Printed Flexible Memory Devices
Researchers at the Munich University of Applied Sciences in Germany have developed inkjet-printable memory cells.
Credit: Michael Kaiser
Researchers at the Munich University of Applied Sciences in Germany have developed flexible, inkjet-printable memory cells they say could lead to mass-produced printable electronics.
The devices are a form of resistive random-access memory (ReRAM). Although all memory cells are switchable between on and off states that represent one bit of data, in ReRAM devices these states are defined by the resistance of the memory cells, according to Munich researcher Bernard Huber.
The researchers studied a type of ReRAM called conductive bridge RAM, which possesses a simple capacitor structure, with an insulator sandwiched between two conductive electrodes. The researchers used three different inks to create the devices, including electrically conductive silver nanoparticles, electrically insulating spin-on-glass, and an electrically conductive polymer known as PEDOT:PSS.
The researchers were able to print the potentially multi-bit memory cells on inexpensive and flexible plastic foils.
From IEEE Spectrum
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