Shindo ENG Lab Debuts TGCV Technology to Solve Glass Substrate Warpage
The new Through Glass-Ceramic Via approach combines materials to reduce thermal stress in high-performance semiconductor packaging.
Shindo ENG Lab is developing a new Through Glass-Ceramic Via (TGCV) technology designed to overcome the mechanical and thermal hurdles of conventional glass substrates. The development targets the critical bottlenecks currently hindering the mass adoption of glass in advanced semiconductor packaging.
According to reports from TheElec, TGCV addresses the inherent limitations of standard Through Glass Via (TGV) substrates by integrating both glass and ceramic materials. This hybrid approach allows the company to precisely control the coefficient of thermal expansion (CTE), a move specifically intended to reduce thermal stress and prevent the warpage and cracking that often plague pure glass implementations. To further enhance viability, Shindo ENG Lab is developing a photolithography-based via processing method to increase production efficiency and support the requirements of finer packaging architectures.
The Shift to Glass Substrates
Through Glass Via technology has emerged as a cornerstone for next-generation packaging, offering higher interconnect density and superior thermal properties compared to traditional organic substrates. As AI chips and high-performance computing (HPC) demand more power and tighter integration, the industry has looked toward glass to provide better signal integrity. However, the transition has been slowed by challenges in drilling precision, restrictive aspect ratios, and the high cost of manufacturing reliable vias.
Implications for AI Hardware
If TGCV successfully mitigates the risk of substrate cracking and warpage, it could significantly accelerate the deployment of glass substrates in the AI sector. By stabilizing the physical integrity of the package under extreme thermal loads, the technology potentially enables superior power efficiency and signal transmission. This would allow chipmakers to push the boundaries of interconnect density without compromising the structural reliability of the hardware.
Market Traction and Next Steps
Industry interest in the technology is already manifesting in tangible demand. Following the ASPS 2026 exhibition, Shindo ENG Lab reported receiving 11 separate requests for samples and testing from both domestic and overseas entities. The company's next phase will likely focus on scaling its photolithography processing to prove that TGCV can be produced at the volumes required for commercial semiconductor supply chains.