For many years, silicon-based semiconductors such as silicon power MOSFETs have reigned supreme in power conversion applications. Many silicon power device manufacturers have expanded their product lines. However, over the past few years, the unique capabilities of these players in the power electronics space have gradually faded, ushering in a new era of product development for the GaN semiconductor device market. 

Demand for GaN semiconductor devices has boomed to meet expanding power electronics applications across multiple industries. R&D started very early - perhaps from the past decade. 

Product development momentum is positive, based on the areas of high performance, low cost development, high power density and energy efficiency of these wide bandgap semiconductor devices. Interestingly, despite being seen as a leap forward for silicon-based technologies, they are less expensive because they can be fabricated using the same process as silicon semiconductors. 

As technology continues to advance, production costs will only decrease further, stimulating the pace of commercialization of novel devices in the GaN semiconductor device market. In addition to their massive use in power conversion, GaN semiconductor-based power electronic devices have achieved unprecedented penetration in RF and analog applications. 

There are constantly abundant opportunities for new entrants into GaN semiconductor devices. They keep adding features, especially in GaN transistors, and making prices competitive to gain a higher share of the GaN semiconductor device market. 

Strikingly, some of these companies offer products that promise better power density and efficiency than state-of-the-art silicon-based devices. A case in point is that many companies are conducting R&D on GaN HEMT devices (eHEMTs). First, the German semiconductor company Infineon Technologies AG is offering GaNHEMT devices for switch-mode power circuits. Interestingly, its products are designed to provide power conversion in the voltage range up to 600V. As a result, new design opportunities in small GaN FETs promise to pave the way for some incredible avenues in consumer electronics, automotive and data center applications. 

The use of GaN semiconductor devices has expanded significantly over the years, depending on the tireless efforts of pioneers to achieve breakthroughs in device size and performance. GaN for automotive electronics is attracting the attention of numerous vehicles. Autonomous vehicles, in particular, have been one of the main applications where IC manufacturers have sought huge commercialization space for their flagship products. 

Needless to say, automotive electronics are on a power-hungry road, with countless autonomous features being added to cars over the years. Automotive LiDAR is a good example, and companies in the GaN semiconductor device market are eyeing huge revenue possibilities. In fact, some OEMs and automotive companies are using GaN technology to achieve the goal of the clean energy transition by promoting it as the next-generation power semiconductor technology for autonomous vehicles. 

Many stakeholders operating in the GaN semiconductor device market are particularly enthusiastic about the application of GaN technology to enhance e-mobility in the transportation sector. Notably, they are designed to expand the power range and functional range of GaNICs, aiming to be the enabler of next-generation power electronics for electric vehicles. Notably, a growing number of Tier-1 automotive electronics manufacturers are expected to offer GaNFETs for electronic drive functions in connected cars, bringing new revenue streams to the market. 

An in-depth business intelligence study evaluating GaN semiconductor device opportunities predicts a global valuation of about $4 billion by 2027. 

Data traffic has increased exponentially over the past 10 years, and this trend is expected to continue. Against this backdrop, GaN-powered data centers may become a reality sooner than the latter. GaN power ICs can be game-changers for modern hyperscale data centers. 

Another area where the GaN semiconductor device business sees steady revenue potential is in portable consumer electronics. They are increasingly used in smartphone chargers and a range of GaN-based single- and multi-port chargers. 

Going forward, continued advancements in the power electronics industry will lead to standard mass production designs for GaN semiconductor devices, with an ongoing focus on cost reduction. This undoubtedly opens a new phase in the semiconductor industry.