VERTICAL FOCUS | Electronics
India Inks Plan to Attract Electronics Makers
India has launched two new programs designed to attract electronics manufacturers. The first—the Production Incentive Scheme for Large-Scale Electronics Manufacturing—offers a 4% to 6% incentive on incremental sales for goods manufactured in India. This plan is designed to benefit the major global players in mobile manufacturing and specified electronics components in the hopes of bringing large-scale electronics manufacturing to the country.
The second program offers a 25% financial incentive for capital expenditures that go toward manufacturing goods that constitute an electronic product's supply chain. This incentive aims to help develop an electronic components manufacturing ecosystem in the country.
Another goal of the two new incentives is to reduce large-scale manufacturers' dependence on imports of components, which will also improve the nation's digital security.
Fish scales could provide an eco-friendly alternative to plastic for use in flexible displays for electronic devices. Flexibility is important for wearable electronics because it enables the creation of displays that bend, fold, or twist easily, says Hai-Dong Yu at Nanjing Tech University in China. Plastic has been the go-to material for achieving this kind of flexibility but because of its harmful impact on the environment, electronics companies seek sustainable, low-cost alternatives.
Fish scales account for 3% of the 70.5 million metric tons of fish produced globally each year. They usually are not eaten and go to waste, but Yu and his team saw potential for the scales in flexible electronics.
The team used gelatin extracted from fish scales to create an extremely thin film. They then incorporated tiny silver nanowires into it to act as electrodes. To provide light for the electronic display, they added a light-emitting material made of zinc sulphide and copper.
The result was a flexible electronic display, which fully biodegrades after 24 days in soil compared to the centuries it takes for a plastic display to break down. The displays can also be recycled by dissolving them in warm water. This means fish-scale films could also be useful for creating disposable wearable electronic devices, says Yu.
In addition to biodegradability, the fish-scale films have other advantages, such as high transparency, low surface roughness, and low cost, according to Yu.
Let's Get Small
Scientists made a breakthrough in developing a new generation of electronics that require less power and generate less heat. The process involves exploiting the complex quantum properties of electrons—in this case, the spin state of electrons. Researchers, led by a team of physicists from the University of Leeds in England, created a "spin capacitor" that can generate and hold the spin state of electrons for a number of hours. Previous attempts have only held the spin state for a fraction of a second.
That ability to capture the spin state opens up the possibility that new devices could be developed that store information so efficiently that storage devices have the potential to get very small. A spin capacitor measuring just one square inch can store 100 terabytes of data.