A new way to cool semiconductors. Free Technical Library News

NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

A new way to cool semiconductors

28.05.2023

Engineers from the Korea Advanced Institute of Technology (KAIST) have improved the thermal conductivity of a semiconductor device by using a surface plasmon polariton formed on the surface of a titanium film. The study opens up a new way to deal with overheating in high-performance microelectronics.

A surface plasmon polariton is a wave that is formed on the surface of a metal as a result of a strong interaction between the electromagnetic field at the interface between the dielectric and the metal and free electrons on the surface of the latter. These waves resemble oscillating particles, the authors of the study explain.

They used a thin film of titanium deposited on a glass substrate to generate surface waves capable of transporting heat. In a series of experiments, the engineers showed that using a film 100 nm wide and with a radius of about 3 cm, thermal conductivity can be increased by 25%.

Because the new heat transfer mode occurs when a thin metal film is deposited on the substrate, it is very useful in the device manufacturing process, the researchers note. They believe that the new technology will help solve the problem of inefficient heat dissipation generated in the hot spots of devices and improve the reliability and durability of semiconductor microelectronics.

<< Back: Casio watch in the style of the series Stranger Things 28.05.2023

>> Forward: Camera without lens 27.05.2023

Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Electronic helmet for truck drivers 14.04.2024

Road safety, especially for drivers of heavy construction equipment, is a top priority for engineers and scientists. In light of this, the German Fraunhofer Institute for Structural Strength and System Reliability has introduced a new product - an electronic helmet, which is designed to protect drivers from serious injury when driving construction vehicles. A new electronic helmet developed by a team of engineers from the Fraunhofer Institute opens up new perspectives for the safety of truck and construction equipment drivers. The device is capable of monitoring the level of shaking in the car cabin and warning the driver of possible danger. The basis of the helmet's operation is a built-in piezoelectric sensor, which generates electricity during physical deformation. This mechanism allows the device to respond to intense vibrations typical of construction equipment. When the level of deformation exceeds safe values, an alarm system is activated on the helmet, ... >>

Antivitamins instead of antibiotics 13.04.2024

The problem of bacterial resistance to antibiotics is becoming increasingly serious, posing a threat to the effective treatment of infections. In light of this, researchers are looking for new ways to combat superbugs. One of the promising directions is the use of antivitamins that can have an antibacterial effect. Antivitamins, although known as the opposite of vitamins, have proven to be a promising tool in the fight against bacterial antibiotic resistance. A study conducted by scientists from the University of Göttingen in Germany confirmed their potential in creating new drugs to combat dangerous infections. With the rise of antibiotic-resistant superbugs, there is a need to find alternative treatments. Antivitamins are molecules similar to vitamins, but capable of inhibiting bacterial activity without harm to the human body. At the moment, science knows only three antivitamins: rose ... >>

Random news from the Archive

FGF21 injection helps sober up 13.03.2023

American researchers sobered mice by injection of the hormone FGF21, which reacts to the introduction of ethanol into the body. The connection allowed the animals to regain consciousness and coordination of movements twice as fast.

The FGF21 hormone is produced by the liver under the influence of a number of stress factors, such as starvation, lack of protein, or the action of ethanol. Previous studies have shown that the compound protects the liver from damage due to alcohol consumption, as well as reduces alcohol cravings and encourages drinking more fluids to prevent dehydration. Behavioral change means that the action of the hormone crosses the blood-brain barrier to the brain. Scientists at the University of Texas Southwestern Medical Center and colleagues decided to clarify the mechanism of its action.

First, the scientists heavily ethanoled two groups of mice - normal and blocked by the hormone FGF21. Although within 15-20 minutes they all became intoxicated and lost the ability to navigate in space, it took 1,5 hours longer for the modified animals to recover the reaction. At the same time, the rate of elimination of alcohol from the blood of animals was the same. Therefore, FGF21 protects against the consequences of ethanol consumption, but does not affect its metabolism.

In the next experiment, an hour after drinking, when the mice were already unconscious, half were given an injection of the hormone. As a result, consciousness and orientation in space recovered 1,5 hours faster than those who did not receive injections, and this is equal to a reduction in the time of intoxication by about 50 percent. The action of FGF21 appeared to be specific to ethanol, as it did not promote sobering after sedative compounds such as ketamine, diazepam, or pentobarbital.

The researchers found that the effect of FGF21 is due to its effect on the noradrenergic neurons in the locus coeruleus - parts of the brain that regulate arousal and alertness. This means that targeting these neurons, mimicking the action of FGF21, could help bring people out of high inebriation. But whether the mechanism of the hormone will work in humans in the same way as in mice should be clarified in the following studies.

See full Archive of science and technology news, new electronics

All languages of this page

Home page | Library | Articles | Website map | Site Reviews