Flip-flop sensors: a new class of silicon sensors |
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| Affiliation: | 1. Department of Chemical Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran;2. Department of Polymer Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran;3. Faculty of Material Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran;1. State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China;2. MOE Key Laboratory of Thermo-Fluid Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China;1. Carbon Nanotechnology Lab, Department of Physics, and Centre of Excellence in Advanced Materials, National Institute of Technology, Durgapur 713209, India;2. Center for Materials Science and Nanotechnology, Sikkim Manipal Institute of Technology, Sikkim Manipal University, Sikkim 737136, India |
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| Abstract: | Integrated sensors based on flip-flops have been succesfully fabricated for the measurement of several physical parameters and subsequently tested. The sensors consist of flip-flops in which one circuit element is sensitive to the desired physical parameter. The sensing action consists of alternately bringing the flip-flop into an unstable and a stable state and counting the resulting ones or zeros. This number is a measure for the asymmetry of the flip-flop and thus for the physical parameter. To illustrate the principle, a force sensor based on a flip-flop containing piezoresistors is presented. |
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