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A member of the Chinese Academy of Engineering and director of the National New Materials Industry Development Expert Advisory C

Semiconductor trends and challenges in the future

A member of the Chinese Academy of Engineering and director of the National New Materials Industry Development Expert Advisory Committee, Academician Gan Yong, shared his experience yesterday at the 2023 Diamond Industry Conference. Lastly, he summarized the future development trends and challenges of semiconductors. I will share the original text with you.

Semiconductor trends and challenges in the future

In terms of future advancements in semiconductor chips, China is focusing on two main research areas - increasing the density of integration and minimizing the size of semiconductors to a nano and micron level. However, despite having the knowledge and capability to design high-end chips, the overall industrial structure for semiconductors in China is still lacking. This means that while Chinese society may have the expertise to analyze and design these advanced chips, they still rely on developed countries like Europe and the United States for basic information on semiconductor chip manufacturing. To put it simply, without proper resources or materials, progress cannot be made.

Furthermore, as semiconductor materials decrease in size, the need for them to have high efficiency, heat dissipation capacity, and yield requirements only increases. This requires a meticulous approach to building material management, as only high-quality materials can withstand the challenges presented. The crux of the issue lies in the production technology of semiconductor epitaxy, where society demands students excel in designing high-end optoelectronic chips using top-notch semiconducting materials. For instance, while current density is not a major concern for semiconductor LED work, it becomes crucial when dealing with higher-power applications like semiconductor lasers. As we look at examples such as blue and green lasers - which have been in development for over 20 years and are now being commercialized in Japan and the United States - it becomes clear that China still has work to do. Our blue-green lasers face issues such as limited power and resource consumption due to subpar composite product quality that cannot withstand high current and voltage. Despite having access to valuable information from these lasers, the Japanese government refuses to provide us with access to their refined epitaxy materials or advanced technology necessary for developing cutting-edge devices like 5G and 66G technologies. These issues are not unique, but rather indicative of larger problems facing

A semiconductor epitaxial integration technology also provides a simple and effective method for fabricating semiconductor flexible devices.

From the point of view of photoelectric integration, compound semiconductors have greater advantages than silicon-based materials, and they also have advantages in material quality tolerances. In the future, semiconductor development may focus on developing compound semiconductors and integrating them with silicon-based materials epitaxially.

In physics, one hopes to reduce electron transport time by shortening the distance. Current computer chips are based on silicon semiconductors with a limit of 2 nanometers. The costs and volume of such chips are high. By increasing electron mobility or speed, we can achieve or surpass silicon-based chip performance without the need for 2nm, which simplifies fabrication.

In addition, there are plans to explore the use of semiconductor materials and devices in emerging fields like quantum technology, photogenetics, and AR/VR. These advances can be made possible through the utilization of semiconductor quantum dots for applications such as single photon sources, detectors, and entangled photons. Furthermore, modern biological theory can also be achieved using semiconductor weakly coherent light sources. The use of visible semiconductor light sources is essential in photogenetics for controlling light exposure. Similarly, in the field of artificial intelligence, semiconductor micro-area light sources can play a crucial role in AR/VR technology.

Why do probes hold significant value?

A space explorer, an unmanned and autonomous craft, is dispatched into the vastness of space with the primary objective of delving into its mysteries and amassing valuable scientific data. This robotic voyager embarks from Earth, equipped with an array of intricate scientific apparatus and utilities, specifically designed to investigate the atmospheric conditions, chemical makeup, and other characteristics of space, planets, moons, and various celestial entities.

What does the term "double probe" signify?

Dual Electrode Configuration

An electrode's potential can be adjusted in relation to another electrode, deviating from a fixed ground reference. The underlying principle remains analogous to that employed in a solitary probe setup, albeit with a crucial distinction: the flow of electric current is constrained to the ion saturation level, irrespective of whether the applied voltage is positive or negative.

Langmuir-style Probe Exploration - Wikipedia
wikipedia.org
https://en.wikipedia.org › wiki › Langmuir_probe_analysis

What constitutes the process of probing within the realm of 3D printing?

As of April 27, 2023, even cost-effective 3D printers are now equipped with a bed probe mounted directly on the printhead. This innovative feature serves to accurately gauge the position of the bed vis-à-vis the nozzle, as well as mapping the contours of the build plate, ensuring impeccable precision in the initial layers of the print job.

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