BOE Commences Sample Shipments of Glass Substrates for Advanced Chip Packaging to Domestic Customers, Signaling Innovation Boost

July 5, 2026

36Kr English China

Overview

Chinese display giant BOE Technology has initiated sample shipments of glass substrates for advanced chip packaging to domestic customers. This move signifies China’s technological progress in next-generation semiconductor packaging materials, poised to enhance performance for AI and High-Performance Computing (HPC) chips. Glass substrates offer superior low thermal expansion, high rigidity, and flatness compared to organic counterparts, enabling finer wiring and denser chip stacking. BOE aims to establish a new role in the semiconductor supply chain through this innovation.

In Depth

Key Findings

BOE Technology, a major Chinese display manufacturer, has commenced sample shipments of its newly developed glass substrates tailored for advanced chip packaging to domestic customers. This strategic development marks a significant advancement for China in the critical materials technology sector for semiconductor back-end processes, expected to contribute substantially to the performance enhancement of high-performance computing (HPC) and artificial intelligence (AI) chips.

Technical / Clinical Details

Glass substrates possess several distinct technical advantages over conventional organic packaging substrates. Firstly, their remarkably low coefficient of thermal expansion (CTE) significantly reduces stress mismatch between chips and the substrate under high-temperature conditions, thereby improving package reliability. Secondly, their high rigidity and superior flatness enable finer wiring (with potential for lines/spaces below 1/1μm) and higher-density chip stacking. These attributes maximize electrical performance and ensure signal integrity in multi-layer chiplet integration and connections with High Bandwidth Memory (HBM). BOE’s glass substrates are designed to leverage these characteristics to meet the demanding requirements of next-generation 3D IC and 2.5D packaging.

Background & Context

The evolution of AI and HPC is pushing semiconductor packaging technologies to unprecedented limits, with traditional organic substrates beginning to show their limitations. To accommodate more transistors and process larger amounts of data at higher speeds, increasing packaging density, shortening signal transmission distances, and improving thermal management are indispensable. Glass substrates are emerging as a potential game-changer to address these challenges, with major semiconductor players like Intel and TSMC also accelerating their R&D efforts in this area. BOE’s initiation of sample shipments positions China as a contender in this critical technology, aiming to enhance its presence in the global semiconductor supply chain.

Strategic Significance & Outlook

BOE’s entry into the glass substrate market with sample shipments signals the start of new competition in advanced packaging materials. Should this technology transition to mass production, it could significantly contribute to performance gains and cost reductions for AI chips, ultimately driving the broader adoption of AI technologies. BOE aims to leverage its expertise in glass processing and large-scale manufacturing capabilities, honed in display production, to establish a new revenue stream in the semiconductor packaging sector. Long-term, glass substrates are expected to become one of the mainstream materials in advanced packaging, playing a crucial role in the AI-era semiconductor ecosystem.

Source: https://eu.36kr.com/en/p/3871173400073222

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