Can Silicon Photonics and Advanced Packaging Redefine the Global Semiconductor Race?
The global semiconductor industry is approaching a significant technological turning point. For decades, competition between chipmakers has centred on smaller transistors, faster processors and increasingly sophisticated manufacturing processes. However, the rapid expansion of artificial intelligence (AI), cloud computing and high-performance data centres is changing the industry's priorities.
The next major breakthrough may no longer depend exclusively on how many transistors can be fitted onto a chip, but on how efficiently different chips communicate with one another. Two technologies, silicon photonics and advanced semiconductor packaging, are emerging as critical components of this transformation, potentially placing the United States at the centre of a new international technology race.
Washington's latest semiconductor initiatives suggest that America is increasingly looking beyond conventional chip manufacturing. The objective is to develop a more comprehensive domestic ecosystem capable of designing, connecting, packaging and manufacturing the technologies required to power next-generation computing. With substantial government incentives, private-sector partnerships and growing investment in optical communications, the United States is attempting to strengthen its position against established manufacturing leaders in Asia.
Silicon photonics represents an important evolution in semiconductor technology. Traditionally, electronic chips communicate through electrical signals transmitted across copper connections. Although this approach has supported decades of technological progress, it is becoming increasingly difficult to maintain the required bandwidth and energy efficiency as AI systems grow in size and complexity.
Silicon photonics addresses this challenge by using light rather than conventional electrical signals to transfer information. By integrating optical components with semiconductor technology, it enables data to travel between processors and computing systems at extremely high speeds while potentially reducing energy consumption and transmission losses. The technology is particularly relevant to AI infrastructure, where thousands of processors must exchange enormous quantities of information continuously. As companies construct increasingly powerful computing facilities, conventional electrical interconnections are facing limitations in bandwidth, power consumption and signal integrity.
An August 2026 review published in Nature Electronics highlighted the growing importance of co-packaged optics for artificial intelligence and high-performance computing. The research examined how optical interconnections could address the limitations of electrical communication while identifying thermal management, manufacturing complexity and standardisation as important obstacles to commercial adoption. This development suggests that the future of semiconductor competition will involve more than manufacturing powerful processors. The ability to connect those processors efficiently could become an equally important source of competitive advantage.
One of the most significant developments in America's semiconductor strategy emerged on 29 July 2026, when the US Department of Commerce announced seven letters of intent involving up to $874 million in federal incentives under the CHIPS and Science Act. The initiative is designed to accelerate research and development across integrated photonics, advanced packaging, semiconductor substrates, materials, memory and next-generation computing architectures.
Among the most notable commitments is a proposed award of up to $300 million to GlobalFoundries to accelerate domestic research into co-packaged optics. The investment is intended to bring forward the development of optical technologies that integrate photonics closer to AI processors, helping improve data-transfer speeds and energy efficiency.
The programme also includes proposed support for Multibeam Corporation's advanced packaging research, Thintronics' low-loss materials and Aeluma's photonic substrate technology. Importantly, these announcements are letters of intent rather than completed final grant awards, with further government due diligence required.
The GlobalFoundries initiative is particularly important because it connects several stages of the semiconductor value chain. Its research programme covers optical materials, wafer technologies and advanced packaging, including three-dimensional hybrid bonding. These capabilities could help establish a stronger domestic manufacturing foundation for near-packaged optics and co-packaged optics.
In May 2026, GlobalFoundries also introduced its SCALE optical module solution, designed to support co-packaged optics in advanced AI data centres. Its platform incorporates wavelength-division multiplexing and advanced silicon photonics components to improve bandwidth density and connectivity between computing systems.
While silicon photonics is attracting increasing attention, advanced packaging is becoming another decisive factor in the global semiconductor industry. Rather than manufacturing increasingly complex processors as single units, chipmakers are adopting chiplet-based architectures, combining multiple specialised semiconductor components within one package.
This approach enables manufacturers to integrate processors, memory and other components using different manufacturing technologies. Consequently, companies can improve performance, increase flexibility and overcome some of the physical limitations associated with traditional chip designs.
The importance of this technology was reinforced by a Reuters report published on 6 November 2026, which described advanced packaging as a growing battleground for the global semiconductor industry.
According to the report, industry capital expenditure in advanced packaging is approaching $28 billion, with market research firm Yole Group forecasting that advanced packaging revenue will surpass traditional packaging revenue for the first time in 2026. Taiwan's TSMC remains a dominant force through its Chip-on-Wafer-on-Substrate (CoWoS) technology. However, growing demand for AI processors is putting pressure on existing manufacturing capacity, encouraging companies to explore additional suppliers and alternative packaging technologies.
For American manufacturers, this presents both a challenge and an opportunity. Building competitive packaging facilities could help reduce dependence on overseas manufacturing while giving domestic semiconductor companies greater control over critical stages of AI chip production.
Among American companies, Intel is seeking to establish a stronger position through its advanced packaging capabilities. Its Foveros and Embedded Multi-die Interconnect Bridge (EMIB) technologies allow multiple chiplets to be connected within sophisticated semiconductor packages.
Intel's advanced packaging operations in Rio Rancho, New Mexico, are particularly significant. In July 2026, the company highlighted how its domestic facilities are expanding the scale of multi-chip integration for next-generation AI processors. Its EMIB-T technology also aims to improve power delivery and signal routing for increasingly demanding computing architectures.
Meanwhile, GlobalFoundries is positioning itself around silicon photonics and optical connectivity. The combination of these capabilities could create opportunities for American companies to participate in a broader range of semiconductor applications, from AI data centres and telecommunications to high-performance computing.
Another important development involves Coherent. In March 2026, NVIDIA announced a strategic partnership with Coherent, including a $2 billion investment to support research, development and expanded US-based manufacturing capacity. The agreement is intended to strengthen the supply of advanced optical technologies required for next-generation AI data centres.
Coherent subsequently announced a proposed CHIPS Act award of up to $50 million in June 2026 to expand its indium phosphide semiconductor manufacturing facility in Sherman, Texas. The expansion is expected to create more than 1,000 jobs, including over 550 direct advanced manufacturing, engineering and technical positions.
