Column: From the analysts...
Advanced IC substrates market will exceed $42.5bn by 2034
By Polaris Market Research analysts
powered servers, these tiny platforms are doing the heavy liſting, enabling faster speeds, slimmer designs and more powerful performance. As technology continues to push boundaries, IC substrates are evolving just as rapidly, becoming a silent yet critical force in the pursuit of smarter, smaller and more efficient electronic systems. Te market for advanced IC substrates
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stood at £17.1bn in 2024, and it will continue to grow at a projected CAGR of 9.6% to year 2034.
Advanced IC substrates Advanced IC substrates are high- performance base materials that connect semiconductor chips in electronic devices. Tey serve as the crucial interface between the silicon chip and the printed circuit board, providing electrical connections and power distribution and maintaining signal integrity. Designed to handle the increasing complexity of modern ICs, such as those used in AI, 5G and high-performance computing, these substrates offer finer circuitry, better thermal management and greater reliability, making them essential for next-generation electronics. Advanced IC substrates now also fit into
much smaller packages, including: • Flip Chip Ball Grid Array (FC-BGA): A high-performance substrate widely used in CPUs, GPUs and networking chips. It supports high I/O density and provides superior thermal and electrical performance.
• Flip Chip Chip Scale Package (FC-CSP): Compact and cost-efficient, it is ideal for smartphones and portable electronics, where space is limited but performance is critical.
dvanced IC substrates are making a big impact behind the scenes of every advanced electronic device. From the latest smartphones to AI-
• Embedded Multi-Die Interconnect Bridge (EMIB): Used in 2.5D packaging to connect multiple dies on a single substrate. It is common in high-end applications such as AI and HPC.
• System-in-Package (SiP): Tese integrate multiple ICs and passive components in one module, enabling miniaturised, multi- functional systems for wearables and IoT devices.
• High-Density Interconnect (HDI) substrates: Feature fine lines and microvias, to support high-density circuits. Tey are oſten used in advanced mobile devices and miniaturised systems.
• Tape substrates (e.g., COF – Chip on Film): Flexible substrates used in display drivers and thin electronics, offering high precision in compact, curved, or flexible designs.
Key advantages Among the core advantages of advanced IC substrates are the following: High-density interconnections Advanced IC substrates enable finer lines, tighter spacing and multiple routing layers, for more complex circuitry to be integrated into smaller footprints. Tis high-density capability is crucial for today’s compact devices and multi-chip packages, where space is limited yet performance high. Improved electrical performance With better signal integrity, controlled impedance and lower power loss, these substrates support high-speed, high-frequency operations essential in processors, memory modules and communication devices. Tis leads to faster data transmission and overall improved chip performance. Better thermal management As chips become more powerful and densely packed, they generate more heat. Advanced IC substrates are designed with materials and structures to dissipate heat
efficiently, preventing thermal damage and maintaining consistent device performance. Mechanical strength and reliability Tese substrates offer robust mechanical support for fragile semiconductor dies, reducing the risk of cracks or damage during assembly and use. Tey also improve overall product durability, which is especially important in automotive, industrial and aerospace applications. Advanced packaging compatibility Advanced IC substrates are a key enabler of modern packaging technologies such as 2.5D, 3D stacking and chiplets. Tey allow seamless integration of multiple dies or heterogeneous components within a single package, supporting greater system-level integration.
Outlook Te advanced IC substrates market is growing rapidly, driven by rising demand for high-performance chips used in AI, 5G and advanced consumer electronics. As chip designs become more complex, there’s a strong shiſt toward substrates with higher density, better thermal control and support for advanced packaging such as 2.5D and 3D integration. With chiplet architectures on the rise and continuous investment in R&D and capacity, the market is poised for sustained growth, making substrates a key enabler of next-generation semiconductor innovation. In conclusion: Small in size but massive
in impact, advanced IC substrates are the unsung heroes powering the digital age. As demand for faster, smaller and more intelligent devices grows, these substrates will remain at the heart of innovation, enabling everything from compact smartphones to high-performance AI systems. With continuous advances in packaging, materials and designs, the future of electronics will be built on the quiet strength of these foundational technologies.
www.electronicsworld.co.uk October 2025 05
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