journal article·2025-09-24Open access

Development of a Low-Particle Emission Linear Atmospheric Plasma Device for Hydrophilization of Silicon Wafers

Sho Yoshida, Koki Hihara, Junnosuke Furuya, Taiki Osawa, Akane Yaida, Nobuhiko Nishiyama, Akitoshi Okino

Applied Sciences· Volume 15· Issue 19

Abstract

We developed a low-particle emission linear atmospheric plasma device for hydrophilizing silicon wafers, aiming to improve semiconductor manufacturing processes. The device generates a stable plasma curtain using argon or helium gas under specific frequency and power conditions, enabling large-area surface treatment without causing damage. Experimental results demonstrated uniform hydrophilization, characterized by a substantial reduction in water contact angle and minimal particle emission, outperforming conventional jet-type plasma systems. TOF-SIMS analysis confirmed the absence of metal contamination, validating the device’s cleanliness. This technology offers a promising alternative to wet chemical treatments, contributing to environmentally friendly and efficient wafer bonding processes.
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Research context

OpenAlex topics: Thin-Film Transistor Technologies · Silicon Nanostructures and Photoluminescence · ZnO doping and properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

FIRST, Institute of Innovative Research, Institute of Science Tokyo, J2-32, 4259 Nagatsuta, Midori-ku, Yokohama 226-8501, Japan

Department of Electrical and Electronic Engineering, Institute of Science Tokyo, Building No. 9, Ookayama, Meguro-ku, Tokyo 152-8552, Japan

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