Intel Patents MicroLEDs Embedded in Glass Chip Packaging
Intel's new patent embeds red, green, and blue MicroLEDs in glass substrates using through-glass vias, enabling diagnostic indicators and custom lighting effects.
Intel has been granted a U.S. patent for embedding MicroLEDs directly inside chip packaging, according to tomshardware.com. The design places semiconductor dies and MicroLEDs into a glass substrate, connecting them with Through-Glass-Vias (TGV).
The MicroLEDs can emit red, green, and blue light. Intel suggests the technology could serve diagnostic testing and customized light effects, such as visual indicators of completed tests or failures without external LEDs. The patent also discusses aesthetic uses like illuminated lettering on the chip's surface.
The patent describes laser treatment and etching to create through-holes and die cavities in the glass, with copper electroplating forming the TGVs before dies are embedded. Silicon nitride layers join the glass to polymer package substrates. Structural variations include horizontal or vertical die placement and integrated reflectors.
Intel has invested in glass substrate technology since the early 2010s. In January at NEPCON Japan, the company demonstrated an engineering sample of a glass core package combined with EMIB multi-chip module technology. At ECTC in May, Intel showcased a 24-layer glass-core panel with copper-filled TGVs and two embedded EMIB bridges.
AU Optronics has a technology roadmap that overlaps with Intel's patent. AUO showcased MicroLED optical communication at SEMICON Taiwan 2026 with a design goal interconnect range of up to 10 meters, and is developing a system-level MicroLED CPO module for high-speed interconnect applications.
Cooling considerations may limit aesthetic use to low-power chips or require specific heatsink configurations.
Quick answers
What does Intel's patent cover?
The patent covers embedding MicroLEDs inside chip packaging by placing semiconductor dies and MicroLEDs into a glass substrate and connecting them with Through-Glass-Vias (TGV).
What are the potential uses of this technology?
Intel suggests diagnostic testing and customized light effects, including visual indicators of completed tests or failures without external LEDs, and aesthetic uses like illuminated lettering on the chip's surface.
How does AU Optronics relate to this technology?
AU Optronics has a technology roadmap that overlaps with Intel's patent. AUO showcased MicroLED optical communication at SEMICON Taiwan 2026 with a design goal interconnect range of up to 10 meters.