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Tiny popping lids make cheap memory

  September 15/22, 2008
Trap tiny amounts of water between layers of electrically conductive plastic and you have an inexpensive way to store data.

Apply a small amount of electricity to this memory cell and the water electrolyzes. The resulting gases pop the top layer away from the bottom layer, which breaks the circuit. Broken cells and intact cells represent the 1s and 0s of digital data, making a write-once memory device.

The low power and plastic materials make the device inexpensive. It could be used to make electronic bar codes.

Research paper:
Ultralow Power Microfuses for Write-Once Read-Many Organic Memory Elements
Advanced Materials, published online September 1, 2008

Researchers' homepages:
Opto-electronics at the University of the Algarve
Molecular Electronics - Physics of Organic Semiconductors, University of Groningen
Dago de Leeuw

Back to TRN September 15/22, 2008

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