4.7 Article

Experimental study of smear formation and removal in heat-assisted magnetic recording

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Experimental Study of Material Pick Up on Heat-Assisted Magnetic Recording (HAMR) Heads

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Summary: Heat-assisted magnetic recording (HAMR) is a next generation recording technology with high temperature writing conditions that introduce reliability challenges for the head disk interface (HDI), particularly in material buildup or smear. Research has shown that material transfer is mainly driven by high temperature and mechanical interactions between the head and media, and optimizing the media process can reduce smear formation. This study aims to understand the smear formation mechanism and explore methods to mitigate smear for HAMR drives.

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