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    • 7. 发明专利
    • Substrate, manufacturing method for the same, semiconductor device and electronic apparatus
    • 基板,其制造方法,半导体器件和电子设备
    • JP2014013810A
    • 2014-01-23
    • JP2012150345
    • 2012-07-04
    • Seiko Epson Corpセイコーエプソン株式会社
    • YODA TAKESHI
    • H01L21/3205H01L21/768H01L23/12H01L23/522
    • H01L23/481H01L21/76804H01L21/76898H01L2224/0401H01L2224/0557H01L2224/05572H01L2224/13009H01L2924/00014H05K1/024H01L2924/00012H01L2224/05552
    • PROBLEM TO BE SOLVED: To provide a substrate in which reliability of electrical and mechanical connection is improved.SOLUTION: A substrate, laminated structure, 10 includes: a first insulation layer 14 provided on a base substrate 12; a second insulation layer 15 provided on the first insulation layer 14; a third insulation layer 16 provided on the second insulation layer 15; and a pad electrode 17 provided on the third insulation layer 16. In the substrate 10, a hole that passes through the base substrate 12, the first insulation layer 14, the second insulation layer 15 and the third insulation layer 16 and reaches the pad electrode 17 from a second opposite side surface of the base substrate 12 is formed, and the substrate 10 has a fourth insulation layer 24 covering an inner wall of the hole and a conductor 32 that is connected to the pad electrode 17 and is covered with the fourth insulation layer 24 in the hole. A diameter of the first insulation layer 14 is larger than a diameter of the second insulation layer 15 in the hole. The first insulation layer 14 and the second insulation layer 15 are formed of different materials from each other, and the second insulation layer 15 and the third insulation layer 16 are formed of different materials from each other.
    • 要解决的问题:提供一种提高机电连接可靠性的基板。解决方案:基板层压结构10包括:设置在基底基板12上的第一绝缘层14; 设置在第一绝缘层14上的第二绝缘层15; 设置在第二绝缘层15上的第三绝缘层16; 以及设置在第三绝缘层16上的焊盘电极17.在基板10中,穿过基底12,第一绝缘层14,第二绝缘层15和第三绝缘层16并到达焊盘电极的孔 形成从基底基板12的第二相对侧面的基板10,并且基板10具有覆盖孔的内壁的第四绝缘层24和连接到焊盘电极17并被第四绝缘层覆盖的导体32 绝缘层24在孔中。 第一绝缘层14的直径大于孔中的第二绝缘层15的直径。 第一绝缘层14和第二绝缘层15由彼此不同的材料形成,并且第二绝缘层15和第三绝缘层16由彼此不同的材料形成。