Samsung to Adopt Glass Substrate Technology for Semiconductor Manufacturing by 2028
As the semiconductor industry evolves to meet the demands of next-generation AI technologies, Samsung is preparing a significant shift in its packaging methods. According to a report from ETNews, the company aims to transition to glass substrates for semiconductor manufacturing by 2028, targeting high-performance AI chipsets.
- The initiative reflects Samsung’s commitment to advanced semiconductor packaging, crucial for handling large data volumes in AI-driven applications.
- The new method will replace traditional silicon interposers with glass interposers, promising higher performance at a reduced cost.
The Role of Interposers in AI Chipsets
Modern AI semiconductors often use a 2.5D package structure, which places a GPU at the center surrounded by high bandwidth memory (HBM). Interposers serve as an essential medium that enables communication between these components.
- Samsung currently uses silicon interposers, valued for their high-speed data transmission and thermal management capabilities.
- However, silicon-based solutions are costly to produce, creating economic inefficiencies in mass manufacturing.
Advantages of Glass Interposers
Glass interposers offer a more cost-effective and technically promising alternative. These materials support precise manufacturing, enhanced thermal stability, and reduced electrical loss—features vital for AI workloads.
- Their high dimensional stability makes them suitable for dense circuit layouts needed in high-performance chips.
- Unlike silicon, glass is more scalable and cheaper, potentially reducing overall production expenses.
Samsung’s Strategic Roadmap
To achieve this transition, Samsung is reportedly constructing a dedicated supply chain for glass substrates, with ongoing discussions involving technology partners and suppliers.
- Samsung plans to use custom-sized glass interposers, focusing on units tailored to chip-scale requirements.
- Rather than using standard 512Ă—515 mm glass panels, Samsung is experimenting with smaller formats such as 100Ă—100 mm or below to accelerate R&D and enter prototype production quickly.
Trade-Offs and Development Focus
The decision to use smaller substrates may speed up innovation but could hinder productivity during mass production, as fewer chips can be processed per batch.
- This development model supports faster iteration cycles and early market entry but may require further scaling adjustments later.
- Samsung’s method also involves panel-level packaging (PLP), which uses square panels—a technique more compatible with glass substrates than traditional wafer-level packaging (WLP).
Facilities and Implementation Timeline
Samsung is setting up a pilot production line in Sejong, Korea, dedicated to glass substrate technology. According to reports, all trial equipment is expected to be fully installed by September.
- The facility will focus on refining glass interposer integration and testing its performance and reliability.
- This project marks a key milestone in Samsung’s roadmap to future-proof its semiconductor business against increasing AI computing demands.
