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    • 11. 发明专利
    • Flux for cream solder, and cream solder
    • 用于奶油焊接的焊剂,以及烧结焊料
    • JP2008110364A
    • 2008-05-15
    • JP2006294007
    • 2006-10-30
    • Arakawa Chem Ind Co Ltd荒川化学工業株式会社
    • IWAMURA EIJIMASUDA YOSHINORIMOMOKI MASAYOSHI
    • B23K35/363B23K35/22B23K35/26C22C13/00
    • PROBLEM TO BE SOLVED: To provide a flux composition which can improve the cleaning property of a flux or can eliminate a cleaning process by improving a flux base.
      SOLUTION: In the flux for cream solder, which flux contains the flux base, a solvent, a thixotropic agent, and an active material, the flux base contains resin (A) having a phenol hydroxyl radical containing a polyhydroxy compound having a total content of 45% or more of a tri-nuclear compound and a tetra-nuclear compound obtained by reacting ortho-phenol (a) having one hydroxyl radical, formaldehyde (b), and phenol (c) having two or more functional groups with each other.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供可以提高助焊剂清洁性能的焊剂组合物,或者可以通过改善焊剂基来消除清洗过程。 解决方案:在助焊剂中,助熔剂包含助熔剂,溶剂,触变剂和活性物质,助熔剂基质含有具有苯酚羟基自由基的树脂(A),其含有多羟基化合物,其具有 通过使具有两个以上官能团的具有一个羟基自由基的邻苯酚(a),甲醛(b)和苯酚(c))反应得到的三核化合物和四核化合物的总含量为45%以上, 彼此。 版权所有(C)2008,JPO&INPIT
    • 14. 发明专利
    • Flux for cream solder, and cream solder
    • 用于奶油焊接的焊剂,以及烧结焊料
    • JP2008110380A
    • 2008-05-15
    • JP2006295221
    • 2006-10-31
    • Arakawa Chem Ind Co Ltd荒川化学工業株式会社
    • IWAMURA EIJIMASUDA YOSHINORIMOMOKI MASAYOSHI
    • B23K35/363B23K35/22B23K35/26C22C13/00H05K3/34
    • PROBLEM TO BE SOLVED: To provide flux composition and cream solder, by which flux composition and cream solder, the release property in screen printing can be remarkably improved, and further the generation of voids in a solder joint portion can be suppressed.
      SOLUTION: The flux for the cream solder, which flux contains 0.05 to 10 vol.% of at least one of spheroidal polymer fine particles to be selected from the group consisting of polyimide fine particles, polyurea fine particles, benzoguanimine fine particles, acrylic cross linking fine particles, and styrenic crosslinking fine particles, and the cream solder, which contains solder particles and the flux for the cream solder, are used.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供助焊剂组合物和膏状焊料,通过其可以显着提高焊剂组合物和膏状焊料的丝网印刷中的剥离性能,并且可以抑制焊接部分中的空隙的产生。 < P>解决方案:该焊膏的焊剂含有0.05〜10体积%的选自聚酰亚胺微粒,聚脲微粒,苯并胍亚胺微粒的球状聚合物微粒中的至少一种, 丙烯酸交联微粒和苯乙烯交联微粒,以及包含焊料颗粒的膏状焊剂和用于膏状焊剂的焊剂。 版权所有(C)2008,JPO&INPIT