Intel and AU Optronics are collaborating on advanced packaging for Micro LED, targeting the market for CPO and high-density computing power integration.

Intel and AU Optronics are collaborating on advanced packaging for Micro LED, targeting the market for CPO and high-density computing power integration.

Intel is extending its advanced packaging strategy to the field of Micro LED substrates and is reportedly collaborating deeply with AU Optronics, a major Taiwanese panel manufacturer, to jointly promote the integration of CPO (Common Packaging Optics) and high-density computing chips. This signifies that the optoelectronic heterogeneous integration technology route is accelerating towards commercialization.

According to a report by Taiwan's Economic Daily News on September 21, industry insiders revealed that Intel has obtained a US patent for "IC Package with Micro LEDs." The core technology involves embedding semiconductor chips into a glass substrate and achieving electrical interconnection between the Micro LED and the packaging substrate via through-glass vias (TGVs). This allows for on-chip light-emitting displays, customized luminous effects, and in-situ photoelectric testing without the need for additional external components. AU Optronics Chairman Peng Shuanglang previously stated at an investor conference that the company has completed its strategic layout in advanced packaging and glass substrates and is currently developing these technologies with partners.

Behind the rumors of this collaboration lies a high degree of alignment in the technological approaches of both companies. AUO has already made significant strides in Micro LED CPO, glass substrates, RDL (redistribution layer), and optical interconnects , which highly overlap with the technological directions indicated by Intel's patents. For the market, if this collaboration materializes, it will provide Intel with a differentiated competitive advantage in the AI computing power packaging race, while also opening an important window for AUO to transform from display panels to high-value advanced packaging.

Intel patents reveal optoelectronic fusion packaging roadmap

Intel's strategic layout in the field of advanced packaging for Micro LED has already seen concrete implementation at the patent level.

Their US patent for "IC Package with Micro LEDs" embeds at least part of a semiconductor chip within a glass substrate, with TGV vias simultaneously embedded in the substrate. The TGVs are electrically coupled to the semiconductor chip, providing power to the Micro LED . This architecture achieves deep integration of Micro LED and IC packaging, enabling visualization of chip operating status, customized light effect display, and even in-situ photoelectric testing at the packaging level without the need for additional external components.

The report states that industry insiders point out that the core significance of this patent lies in the cross-border integration of advanced packaging and Micro LED —pre-embedding Micro LEDs into the glass substrate of IC packaging, achieving electrical interconnection through TGV, and providing a heterogeneous optoelectronic integration solution for CPO and high-density computing power packaging. This is fundamentally different from the current mainstream display glass-based processes: the traditional route uses a single-sided glass backplane, with the driver IC bonded to the edge of the front glass via COG, eliminating the need for TGV vias, and its technical complexity and integration level are lower than the packaging-level applications that Intel is targeting.

AUO's technological expertise aligns closely with Intel's strategic path.

AUO is a potential partner of Intel because of the technological barriers it has built up over many years.

According to reports, Peng Shuanglang emphasized at the earnings conference that AU Optronics, with nearly 30 years of experience in glass manufacturing, possesses advanced technical capabilities in RDL and TGV, and has the R&D capacity for heterogeneous integration . The company has extended its related technologies to high-value areas, including low-orbit satellite glass antennas and CPO packaging technology related to Micro LED. The glass substrate business is also underway and has already established partners.

According to reports, industry insiders revealed that AU Optronics (AUO) is currently developing a systematic strategy around Micro LED CPO + glass substrate + RDL + optical interconnect , which overlaps significantly with the technology roadmap described in Intel's patents. This is considered the direct reason why Intel actively sought cooperation. Peng Shuanglang also stated that the variety of products using Micro LED this year will increase compared to last year, and that AUO has already begun investment preparations for pilot production lines including TGV, RDL, and CPO technologies, indicating that AUO is moving these technologies from the R&D stage to mass production.

Intel accelerates advanced packaging efforts to secure CoWoS spillover orders.

The potential collaboration between Intel and AUO is part of a broader acceleration of Intel's advanced packaging strategy.

The report points out that industry insiders say Intel continues to focus on its EMIB (Embedded Multi-Chip Interconnect Bridge) series of technologies, actively vying for TSMC's CoWoS capacity spillover orders . At the same time, it is introducing glass substrates with four major advantages: high flatness, high temperature resistance, low coefficient of thermal expansion, and low signal loss. Recently, it has also entered the field of advanced packaging of Micro LED substrates.

Analysts believe the strategic intent behind this move is clear: With the continued expansion of AI computing power demand, CPO technology is seen as a key path to overcome the bottleneck of high-density chip interconnects . Directly integrating Micro LED light sources onto the packaging substrate is expected to achieve breakthroughs in photoelectric signal conversion efficiency and system integration. Intel is attempting to establish a first-mover advantage in this emerging field through a combination of patent positioning and external collaborations, providing differentiated technological support for its foundry business.

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