Artificial ‘neurotransistor’ created

Science Daily  July 14, 2020 An international team of researchers (Germany, India, South Korea, USA – UC Berkeley) simulated the properties of neurons using the principles of biosensors and modified a classical field-effect transistor to create an artificial neurotransistor. They applied solgel to a conventional silicon wafer with circuits. When solgel hardens and becomes a porous ceramic the ions move between the holes. As they are heavier than electrons and slower to return to their position after excitation, hysteresis causes the storage effect. The plasticity of the neurotransistor, which is similar to that of the human brain, enables them to […]

Paper-thin gallium oxide transistor handles more than 8,000 volts

Science Daily  May 29, 2020 To achieve passivation in gallium arsenide a team of researchers in the US (SUNY Buffalo, Stanford University) added a layer of SU-8, an epoxy-based polymer commonly used in microelectronics. In tests the transistor could handle 8,032 volts before breaking down, which is more than similarly designed transistors made of silicon carbide or gallium nitride. The higher the breakdown voltage, the more power a device can handle. Simulations suggest the transistor has a field strength of more than 10 million volts per centimeter. The transistor could lead to smaller and more efficient electronic systems that control […]

Carbon nanotube transistors make the leap from lab to factory floor

MIT News  June 1, 2020 Carbon nanotube field-effect transistors (CNFETs) have only been fabricated in academic or research laboratories. Developing a suitable method for depositing nanotubes uniformly over industry-standard large-area substrates has been the challenge for commercializing it. An international team of researchers (USA – MIT, industry, Canada) has shown that a deposition technique in which the substrate is submerged within a nanotube solution can allow CNFETs to be fabricated within industrial facilities. They have developed process modifications to standard solution-based methods accelerating the deposition process by more than 1,100 times and reducing cost. They have demonstrated uniform and reproducible […]