According to the report of the American Physicist Organization Network on December 6, EPFL scientists in Lausanne announced that they had made the first molybdenum chip prototype. The chip performed well in experiments and confirmed its outstanding performance in the field of semiconductor chip manufacturing. This means that commercial molybdenum chips are one step closer to reality.
Earlier this year, the school had announced the potential performance of molybdenum, causing people to pay attention to this new material. The researchers said that molybdenum can be used to make smaller, more energy-efficient chips. This material not only far exceeds the performance of silicon, and even has advantages over graphene in certain aspects, and is expected to become a strong competitor for the next generation of semiconductor materials.
The prototype chip was developed by the University's Nanoelectronics and Structure Laboratory (LANES). The researchers obtained this prototype chip by connecting two to six transistors in series. Experimental results show that the prototype chip has been able to perform basic binary logic operations.
Andras Keyes, director of the Nanoelectronics and Structures Laboratory, said that molybdenum is a promising new material and this experiment has proven this. He said that the main advantage of molybdenum is that it helps to further reduce the size of the transistor, and then create smaller, better-performing electronic devices. For silicon, the limiting thickness of a fabrication chip is 2 nanometers, because if the thickness is smaller, its surface is easily oxidized in the environment, affecting its electrical properties. The chip made of molybdenum material can work normally even at a thickness of 3 atoms, and the material conductivity at this scale is still stable and controllable.
Another advantage of molybdenum is its advantage in the band gap, which makes the chip made from it faster and lower power consumption. Previous experiments have shown that a transistor fabricated with a single layer of molybdenum has a power consumption that is 100,000 times smaller than a conventional silicon transistor in a stable state. In addition, the unique mechanical properties of molybdenite also make it possible to become a flexible chip material. This new material will give more interesting features to the future chips. For example, a flexible computer or mobile phone made of it can even be bent according to the curve of the user's face.
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