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    • 3. 发明公开
    • 플립칩용 솔더범프 제조 방법과 이를 위한 금속 전기도금액
    • 用于制造用于卷筒纸和金属电镀溶液的焊膏的方法
    • KR1020150080398A
    • 2015-07-09
    • KR1020140066301
    • 2014-05-30
    • 주식회사 에이피씨티주식회사 엠에스씨
    • 고정우오정훈손진호이형근박규빈박현국방태조김동현
    • C25D3/56
    • C25D3/56
    • 플립칩패키지의솔더범프제조를위한주석계전기도금액과이 전기도금액을이용한연속도금공정의솔더범프제조방법을개시한다. 본발명의주석계전기도금액은메탄술폰산주석, 메탄술폰산은, 메탄술폰산과방향족폴리옥시알킬렌계에테르및 물을함유한다. 본발명의솔더범프제조방법은 (1) 전극패드가개방된보호층과금속기저층(UBM)을갖는실리콘웨이퍼에황산계구리또는구리/니켈전기도금액으로도금하여상기금속기저층위에구리또는구리/니켈필라범프를형성하는단계와 (2) 이러한구리도금단계완료후 12 시간이내에상기주석계전기도금액을이용하여솔더범프를형성하는단계를포함한다.
    • 本说明书公开了一种用于制造用于倒装芯片封装的焊料凸块的锡基电镀溶液以及使用该电镀溶液的连续电镀工艺中制造焊料凸块的方法。 根据本发明,锡基电镀溶液包括甲磺酸锡,甲磺酸银,甲磺酸锡,芳香族聚氧化烯醚和水。 根据本发明,用于制造焊料凸块的方法包括:通过电镀具有金属基层(UBM)的硅树脂晶片和金属基层(UBM)的硅晶片和金属基层的顶部上形成铜或铜/镍柱凸块的步骤(1) 具有带有硫酸基铜或铜/镍电镀溶液的开放电极焊盘的保护层; 以及在镀铜步骤完成后十二小时内使用锡基电镀溶液形成焊料凸块的步骤(2)。
    • 6. 发明授权
    • 주석-은 합금 도금액의 제조방법
    • 生产SN-AG合金镀层溶液的方法
    • KR101342408B1
    • 2013-12-17
    • KR1020120067141
    • 2012-06-22
    • 주식회사 에이피씨티김동현
    • 방태조김동현오정훈손진호육영란이형근
    • C25D3/56C25D3/60C25D3/64
    • C25D3/60C25D3/64
    • The present invention relates to a method for producing an Sn-Ag alloy plating solution comprising methanesulphonic tin, methanesulphonic silver, methanesulphonic, nonionic surfactant and additive. The producing method comprises the following steps: a first step of removing and refining positive ion metal impurities in methanesulphonic and nonionic surfactant using at least one refining method among the refining methods through diatomite filtering method, activated carbon method, and positive ion exchange processing method, while removing positive ion metal impurities released to equal to or below 100 ppm of Pb, Fe, Cu, Ni, Bi, P, K ion; a second step of producing methanesulphonic tin and methanesulphonic silver by melting tin and silver into methanesulphonic in which the impurities are removed through an electrolyic method; a third step of producing a composing solution by adding additives comprising methanesulphonic tin, methanesulphonic silver, methanesulphonic, nonionic surfactant, an antioxidant, and complexing agent; and a forth step of filtering the composing solution. Through these steps, the present invention can produce a plating solution of which the silver extraction content is constant and of which the plated film is even by producing the plating solution with filtered materials while removing the positive metal impurities from them. [Reference numerals] (AA) Remove cation metal impurities in methanesulphonic/nonionic surfactant;(BB) Generate methanesulphonic tin/methanesulphonic silver;(CC) Genarate a mixture by adding methanesulphonic, methanesulphonic tin, methanesulphonic silver, nonionic surfactant, and an additive;(DD) Filter a mixed liquid
    • 本发明涉及一种生产包含甲磺酸锡,甲磺酸银,甲磺酸,非离子表面活性剂和添加剂的Sn-Ag合金电镀液的方法。 该制造方法包括以下步骤:通过硅藻土过滤法,活性炭法和正离子交换处理法,在精制方法中使用至少一种精炼方法除去和精制甲磺酸和非离子表面活性剂中的正离子金属杂质的第一步骤, 同时去除释放到Pb,Fe,Cu,Ni,Bi,P,K离子等于或低于100ppm的正离子金属杂质; 通过将锡和银熔化成甲磺酸生产甲磺酸锡和甲磺酸银的第二步,其中杂质通过电解方法除去; 通过添加包含甲磺酸锡,甲磺酸银,甲磺酸,非离子表面活性剂,抗氧化剂和络合剂的添加剂制备组合溶液的第三步骤; 以及过滤组合溶液的第四步骤。 通过这些步骤,本发明可以制造银提取量恒定的镀液,并且通过用过滤材料制造镀液,同时从中除去正的金属杂质,其镀膜均匀。 (AA)除去甲磺酸/非离子表面活性剂中的阳离子金属杂质;(BB)产生甲磺酸锡/甲磺酸银;(CC)通过加入甲磺酸,甲磺酸锡,甲磺酸银,非离子表面活性剂和添加剂,混合混合物; (DD)过滤混合液体