Mass Production Timelines Shift Collectively, Is Glass Substrate Facing Its First Major Test?
The article discusses the shift in the glass substrate industry from initial announcements to practical delivery and reliability testing. In mid-to-late 2026, key developments include Intel and Lens Technology advancing AI-era glass substrate packaging cooperation, Avaco launching a TGV pilot line in South Korea, and reports that Samsung Electro-Mechanics is facing delays, potentially pushing mass production beyond 2028. The core challenge has moved from material comparisons to rigorous customer reliability certifications, focusing on thermal cycling, humidity resistance, and stable electrical performance post-processing.
Samsung Electro-Mechanics' reported delay, linked to client sample reliability bottlenecks, reflects a broader industry trend where timelines are being adjusted. Other players like SKC/Absolics, LG Innotek, and DNP are also targeting initial supply systems or pilot lines between 2027-2028, with mainstream adoption potentially post-2030. The delays highlight that the current hurdle is supply-side technical maturity—particularly achieving stable yields and passing client certifications—rather than a lack of demand driven by AI and HPC.
The collaboration between Intel and Lens Technology focuses on establishing design and verification standards. Meanwhile, Japanese firms like Shinko Electric and DNP are progressing with multi-layer wiring and stress control. Chinese panel makers, led by BOE, are rapidly entering with automated pilot lines and customer testing. On the material side, companies like Corning are exploring glass substrates for co-packaged optics (CPO), potentially offering an earlier application path than core substrates.
Ultimately, the central barrier is TGV (Through Glass Via) yield, currently around 60-70%, lower than organic substrates, with higher costs due to glass brittleness and process complexity. The industry's current phase represents its first major test in transitioning from lab R&D to volume manufacturing, with success hinging on overcoming these yield and certification challenges.
marsbitYesterday 06:51
