Sumitomo Metal Mining Develops 100nm Nano Copper Powder with Good Oxidation-resistant

September 18, 2025
Sumitomo Metal Mining Co., Ltd.

Tokyo, Japan - Sumitomo Metal Mining Co., Ltd. (TSE: 5713) has announced the successful development of a 100nm oxidation-resistant nano copper powder. This innovative material is expected to play a key role in power semiconductor applications, particularly as a bonding material. In addition, the company is accelerating sample evaluations of its previously developed 200nm grade with multiple customers toward product qualification, while preparing for mass production targeted for the fiscal year ending March 31, 2027.

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