SILVER POWDER, METHOD OF PRODUCING SILVER POWDER, AND CONDUCTIVE PASTE
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United States of America
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Issued Date -
Feb 6, 2025
app pub date -
Dec 2, 2022
filing date -
Dec 2, 2022
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Abstract
Provided are a silver powder that can reduce line resistance and a method of producing the same. The silver powder has a diameter at a cumulative value of 50% of 3 μm or more and a ratio of particles of 10 μm or larger of 10% or less. The silver powder includes flake-like particles having a major axis of 6 μm or more and irregularly shaped particles having a major axis of less than 6 μm, an average aspect ratio that is a ratio of average major axis relative to average thickness of the flake-like particles is 8 or more, and a shape factor that is a ratio of area of a circle having average maximum length of the irregularly shaped particles as a diameter relative to average particle area of the irregularly shaped particles is 1.7 to 1.9. Ignition loss is 0.1 wt % to 0.4 wt %.
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