Teradyne, a provider of automated test equipment and advanced robotics, has announced Iris 100, a production-ready optical test platform for microLED devices. Iris 100 brings semiconductor-grade optical testing to microLED manufacturing, measuring every individual emitter in an array and integrating directly with the Teradyne UltraFLEXplus platform for combined optical and electrical testing.
MicroLED technology underpins two of the fastest-moving areas in advanced electronics: augmented reality (AR) microdisplays and optical data interconnects for AI data centre architectures. Both depend on devices containing hundreds of thousands to millions of individual emitters, each of which must be characterised with production-level precision and throughput. Benchtop optical instruments can characterise these devices in the laboratory, but cannot deliver the throughput and cost per unit required for volume manufacturing.
Iris 100 was engineered for high-volume precision manufacturing. Its spectrometer and high-resolution camera measure the array’s spectral response, alongside per-pixel luminance and uniformity. Advanced test parallelisation and image-processing algorithms enable high-throughput characterisation of a full array containing millions of microLEDs. Using Teradyne’s widely adopted IG-XL software, Iris 100 detects optical defects, including dead or stuck pixels and cluster defects, early in the manufacturing process. Its NIST-traceable calibration workflow enables absolute measurements that can be correlated across batches, wafers and manufacturing sites.
“MicroLED is shifting from lab to volume production for both AR microdisplays and, increasingly, optical interconnects, which are becoming foundational to how AI data centres scale beyond copper,” said Shannon Poulin, president of the Semiconductor Test division at Teradyne. “Both technologies demand per-emitter test at production throughput, and Iris 100 delivers that on test infrastructure our customers already run at scale.”
Iris 100 follows the introduction of Teradyne Photon 100 for silicon photonics and co-packaged optics testing earlier this year, and the acquisition of photonic test specialist Quantifi Photonics in 2025. It extends Teradyne’s capabilities across the full spectrum of emerging optical testing requirements.
Iris 100 supports wafer and final testing, allowing manufacturers to add microLED testing to their existing equipment fleets, with plans to support photodetector testing within the same test insertion.
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