Electronics & Semiconductors
The University of Surrey has unveiled a device with unique functionality that could signal the dawn of a new design philosophy for electronics, including next-generation wearables and eco-disposable sensors.
Oct 28, 2020
0
6
Business
Advanced Micro Devices is buying Xilinx for $35 billion in an all-stock deal that will combine the two Silicon Valley chip makers and accelerate an already rapid-fire pace of mergers and buyouts in the industry.
Oct 27, 2020
0
5
Electronics & Semiconductors
A team of researchers affiliated with institutions in the U.K., China and Australia has developed a cleaning-healing-cleaning method that eliminates ionic defects on the surface of 3-D perovskite films. In their paper published ...
Washington has ordered US companies to seek permission before selling their technologies to Chinese semiconductor giant SMIC, its latest salvo in the battle for technological dominance over Beijing, the Wall Street Journal ...
Sep 26, 2020
0
5
Robotics
A medical robotic hand could allow doctors to more accurately diagnose and treat people from halfway around the world, but currently available technologies aren't good enough to match the in-person experience.
Sep 16, 2020
0
81
Business
China's leading maker of semiconductors has denied it has any links to the military following reports Washington is considering stepping up its feud with Beijing over technology and security by imposing export controls that ...
Sep 6, 2020
0
6
Electronics & Semiconductors
Researchers have demonstrated the use of a ground-breaking circuit design that could transform manufacturing processes for wearable technology.
Aug 3, 2020
0
107
Business
Taiwanese chip giant TSMC on Tuesday briefly became the world's tenth largest company thanks to a two-day surge in its stock price that has propelled the island's exchange to a record high.
Jul 28, 2020
0
4
Energy & Green Tech
Scientists in Australia and the United States have been able to 'upconvert' low energy light into high energy light, which can be captured by solar cells, in a new way, with oxygen the surprise secret ingredient. The results ...
Jul 20, 2020
0
710
Electronics & Semiconductors
Electrical control of the magnetism of novel two-dimensional ferromagnetic semiconductors could enable the development of new types of spintronic devices—electronic devices that leverage the intrinsic magnetic properties ...
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".
This text uses material from Wikipedia, licensed under CC BY-SA
