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    • 2. 发明申请
    • LOW FIRING TEMPERATURE COPPER COMPOSITION
    • 低温度铜组合物
    • US20140178573A1
    • 2014-06-26
    • US14022641
    • 2013-09-10
    • Heraeus Precious Metals North America Conshohocken LLC
    • Samson SHAHBAZIMark CHALLINGSWORTHSteve GRABEYRyan PERSONS
    • H05K1/09H05K3/12
    • H05K1/092C03C8/14C09D5/24H01B1/22H05K3/12H05K3/1291
    • An electroconductive paste comprising first copper particles having a specific surface area of about 0.15-1.0 m2/g, second copper particles having a specific surface area of about 0.5-2.5 m2/g, glass frit and an organic vehicle. According to another embodiment of the invention, the first copper particles are about 60-80 wt. % of the paste, while the content of the second copper particles is up to about 20 wt. % of the paste. According to another embodiment, the glass frit is lead-free and is about 1-10 wt. % of the paste. Preferably, the glass frit comprises a boron-zinc-barium oxide glass frit. According to another embodiment, the paste further comprises copper oxide. Another embodiment of the invention relates to an electroconductive paste comprising about 60-95 wt. % copper component, a boron-zinc-barium oxide glass frit, and an organic vehicle.
    • 一种导电浆料,其包含比表面积约0.15-1.0m2 / g的第一铜颗粒,比表面积约0.5-2.5m2 / g的第二铜颗粒,玻璃料和有机载体。 根据本发明的另一个实施方案,第一铜颗粒是约60-80wt。 %的糊料,而第二铜颗粒的含量高达约20wt。 %的粘贴。 根据另一个实施方案,玻璃料是无铅的,为约1-10wt。 %的粘贴。 优选地,玻璃料包含硼 - 锌 - 氧化钡玻璃料。 根据另一个实施方案,糊料还包含氧化铜。 本发明的另一个实施方案涉及包含约60-95wt。 %铜成分,硼 - 锌 - 氧化钡玻璃料和有机载体。