Researchers Turn Transistors Into Thread for Wearable Computing
Public Group active 2 years, 11 months agoAll computers, without the pain . recent exception of quantum computers, rely on switches for logic. Those switches — transistors inside case modern day computers — can either be on or off and form logic gates. Every single logical operation a computer takes is based on the states of which transistors. Traditionally, somewhere between thousands and billions of transistors are placed on a rigid silicon wafer to create a pick. But now a team of researchers from Tufts University have built transistors into flexible bond.
This transistor thread could, theoretically at least, be used to create wearable computers. Most wearable technology today relies on IC components, such as microcontrollers, usually are embedded somewhere on gadget. The general focus been recently on making those as small as possible solution to to make wearable devices comfortable. But imagine if your t-shirt itself could unquestionably be a processor. As opposed to trying to fit a rigid microcontroller somewhere on the shirt, the shirt may be packed associated with transistor logic gates that you to process operations itself.
To help make the thread, the team started by winding two thin, gold wires around a linen suture. Those wires be the source and drain electrodes of a transistor. Then they applied a semiconducting solution to the thread, which coats the wires and is absorbed in the linen suture. After the solution’s solvent evaporated, it left behind an even layer of semiconductors on the thread. To create the transistor’s gate electrode, they placed a dab of a fabric called ionogel between the source and drain wires. An additional gold wire was inserted into the ionogel produce a the gate electrode. For now, the transistor wires have to be wound together by hand in order collection their state and perform standard logical operations, but it surely could be possible to improve on that in earth.
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