Characterizing Semiconductor Structures with IR PiFM - AZoM

This article explores the application of infrared photothermal deflection microscopy (IR PiFM) for characterizing advanced semiconductor structures. As semiconductor devices evolve toward smaller proc... Read original →

The successful deployment of IR PiFM for 3nm chip analysis signals a paradigm shift in semiconductor metrology—from destructive, high-resolution electron microscopy toward non-destructive, chemically sensitive infrared mapping. This will force EDA and process control platforms to integrate vibrational spectroscopy data streams, enabling faster yield learning loops. Foundries like TSMC (Taiwan, China) and Samsung benefit from reduced failure analysis costs, yet face supply chain vulnerability: IR PiFM systems are dominated by U.S. vendors (e.g., Anasys), raising export control risks under tightening tech restrictions. Intel is likely to fast-track in-house PiFM adoption to accelerate its 20A/18A node ramp, while SMIC may struggle with N+3/N+4 validation without access. Within 18 months, IR PiFM could become standard for sub-3nm characterization, triggering urgent demand for domestic alternatives—especially as China prioritizes metrology tool localization, potentially channeling state capital into homegrown AFM players with nano-IR capabilities.