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High-end chips can be produced without a lithography machine, and Chinese scientists have achieved new breakthroughs in transistor research



News from IT House on May 26, the performance of traditional semiconductor chips mainly depends on the dense stacking of multi-layer transistors. Now, with the emerging artificial intelligence, the components required to develop computer chips are getting higher and higher.

Massachusetts Institute of Technology (MIT)The atomic-level transistor research led by Chinese scientist Zhu Jiadi made a breakthrough in April. The project adopts the meteorological precipitation layer-by-layer stacking process.It is no longer necessary to use a photolithography machine to produce chips with a process of one nanometer or even below.This would shrink computers to one-thousandth the size and one-thousandth the power consumption of today’s.

▲ Picture source MIT website

The new transistors are only about three atoms thick, so they can be stacked to make cheaper, more powerful chips. MIT researchers have thus developed a new technique to effectively and efficiently “grow” layers of metal disulfide (TMD) materials directly on fully fabricated silicon chips to enable denser integration of chip transistors. sex.

“Growing” transistor material directly onto silicon wafers is a major challenge because the chip manufacturing process typically requires temperatures of around 600 degrees Celsius, and silicon transistors and circuits can be damaged when heated above 400 degrees Celsius.

Now, an interdisciplinary team of MIT researchers has developed aLow temperature “growth” process. The technique allows the direct integration of two-dimensional semiconductor transistors into standard silicon circuits.

The new technique can also significantly reduce the time required to grow these materials. While previous methods took more than a day to create a single layer of 2D material for chips, the new method can “grow” uniform metal dichalcogenides (TMDs) across an entire 8-inch wafer in less than an hour material layer.

IT House believes that,If this new technology is officially implemented, it can greatly reduce the cost of the current chip, thereby reducing the price of the entire hardware market..

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