Electronics & Semiconductors

Towards more energy-efficient 2D semiconductor devices

According to researchers from the Singapore University of Technology and Design (SUTD), a recently discovered family of two-dimensional (2D) semiconductors could pave the way for high-performance and energy-efficient electronics. ...

Electronics & Semiconductors

Heterogeneous epitaxy of semiconductors targeting the post-Moore era

A research team led by Prof. Liu Zhiqiang from the Institute of Semiconductors of the Chinese Academy of Sciences, in cooperation with the team led by Prof. Gao Peng from Peking University and the team led by Prof. Liu Zhongfan ...

Business

Taiwan chipmaker TSMC says profit up 11.2% as demand rises

TSMC, the biggest contract manufacturer of processor chips for Apple Inc. and other global brands, said Thursday its latest quarterly profit rose 11.2% over a year earlier to $4.8 billion as demand for smartphones and consumer ...

Electronics & Semiconductors

How AI can transform layering technique for semiconductors

To make computer chips, technologists around the world rely on atomic layer deposition (ALD), which can create films as fine as one atom thick. Businesses commonly use ALD to make semiconductor devices, but it also has applications ...

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Semiconductor

A semiconductor is a material that has a resistivity value between that of a conductor and an insulator. The conductivity of a semiconductor material can be varied under an external electrical field. Devices made from semiconductor materials are the foundation of modern electronics, including radio, computers, telephones, and many other devices. Semiconductor devices include the transistor, solar cells, many kinds of diodes including the light-emitting diode, the silicon controlled rectifier, and digital and analog integrated circuits. Solar photovoltaic panels are large semiconductor devices that directly convert light energy into electrical energy. In a metallic conductor, current is carried by the flow of electrons. In semiconductors, current can be carried either by the flow of electrons or by the flow of positively-charged "holes" in the electron structure of the material.

Silicon is used to create most semiconductors commercially. Dozens of other materials are used, including germanium, gallium arsenide, and silicon carbide. A pure semiconductor is often called an “intrinsic” semiconductor. The conductivity, or ability to conduct, of semiconductor material can be drastically changed by adding other elements, called “impurities” to the melted intrinsic material and then allowing the melt to solidify into a new and different crystal. This process is called "doping".

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