Silver powder, method of producing silver powder, and conductive paste
AssigneeDowa Electronics Materials Co., Ltd.
InventorsTaro Torigoe, Hiroaki Koubu, Fumiya Abe, Minami Kanasugi
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AssigneeDowa Electronics Materials Co., Ltd.
InventorsTaro Torigoe, Hiroaki Koubu, Fumiya Abe, Minami Kanasugi
Estimating the term…
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 %.
A silver powder that in a volume-based particle size distribution measured using a laser diffraction/scattering particle size distribution measurement instrument, 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, wherein
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