Teradyne is expanding its semiconductor test portfolio into microLED manufacturing with Iris 100, a production-ready optical test platform designed to characterize individual emitters across large arrays.
Teradyne (NASDAQ: TER) said Iris 100 is designed to bring semiconductor-grade optical testing to high-volume microLED manufacturing. The system measures the spectral response, luminance and uniformity of individual emitters, addressing a testing challenge created by microLED devices that can contain hundreds of thousands to millions of pixels.
MicroLEDs are being developed for applications including augmented reality (AR) microdisplays and optical data interconnects used in AI data center architectures. Both applications require precise characterization of large numbers of individual emitters. While laboratory optical instruments can perform such measurements, Teradyne said they generally do not provide the throughput and cost economics needed for volume production.
Testing Millions of Emitters
Iris 100 combines a spectrometer with a high-resolution camera to measure optical characteristics across an array. Teradyne said parallelized testing and image-processing algorithms allow full-array characterization involving millions of microLEDs at production throughput.
The platform uses Teradyne’s IG-XL software to identify defects, including dead or stuck pixels and cluster defects, earlier in the manufacturing process. Its calibration workflow is NIST-traceable and is designed to provide absolute measurements that can be correlated across lots, wafers and manufacturing sites.
The system can support both wafer and final test, allowing manufacturers to integrate microLED testing into existing Teradyne test infrastructure. Teradyne also outlined a roadmap to add photodetector testing capabilities through the same test insertion.
“Both technologies demand per-emitter test at production throughput,” said Shannon Poulin, president of Teradyne’s Semiconductor Test division. He added that Iris 100 is designed to operate on test infrastructure already deployed by customers at scale.
Broader Photonics Strategy
The Iris 100 launch follows Teradyne’s introduction of Photon 100 earlier in 2026 for silicon photonics and co-packaged optics testing. The company also acquired photonic test specialist Quantifi Photonics in 2025, expanding its capabilities in optical testing.
The moves position Teradyne to address testing requirements emerging alongside the growth of optical technologies in computing and communications.
