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    • 8. 发明专利
    • SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE
    • JP2003158238A
    • 2003-05-30
    • JP2001354266
    • 2001-11-20
    • HITACHI LTD
    • SUWA MOTOHIROKATAGIRI MITSUAKINAKAMURA ATSUSHI
    • H01L25/18H01L25/04
    • PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit device that can reduce crosstalk caused by induction even without many extra circuit elements arranged. SOLUTION: Parallel wiring portions 10A, 10B, and 1A in which the flowing direction of signals is inverted are formed at part of a signal route by turning the signal route in the course of the route without using any active circuit element, such as the inverter, etc., which inverts the phase of real signals. Since no inverter is interposed in the courses of the parallel wiring portions, the portions constitute parts of real wiring and do not require any extra circuit element. When signals are transmitted from one side of each parallel wiring portion, the signals are turned in the course is transmission and the transmitting direction of the signals is inverted. When the flowing direction of an electric current flowing through the parallel conductors is inverted, magnetic fields in different directions cancel each other due to electromagnetism and the occurrence of electromagnetic waves is suppressed. The parallel wiring portions 10A, 10B, and 1A can relieve and, in addition, can suppress the occurrence of crosstalk to nearby other wiring.
    • 10. 发明专利
    • Semiconductor device
    • 半导体器件
    • JP2000077555A
    • 2000-03-14
    • JP26088398
    • 1998-08-31
    • Hitachi Ltd株式会社日立製作所
    • SHIRAISHI TOMOHIROMATSUNAGA TOSHIHIROSUWA MOTOHIROKUBOSONO MINORUNOSE FUJIAKITSUTSUMI YASUKISHIRAI MASAYUKIMIWA TAKASHI
    • H01L23/12
    • H01L2224/48091H01L2224/48227H01L2224/48465H01L2224/49171H01L2224/73265H01L2924/00014H01L2924/00
    • PROBLEM TO BE SOLVED: To ensure proper through-hole conductors and further reduce the pitch of the conductors.
      SOLUTION: A BGA 2 of a BGA.IC 1 is provided with a base 3 as a core 4. A ground conductor 5 is formed on the first major surface of the core 4, and an insulating film 9 is formed on the entire ground conductor 5, a plurality of signal lines 10 being formed on the insulating film 9 into a radial pattern. A bonding pad 11 is formed on the inside ends of the signal lines 10, and a pad 12 for bump is connected electrically with the outside ends of the signal lines 10 through the through-hole conductors 15 formed into narrow through- holes 14. Since the pitch of the signal lines can be reduced by forming the through-holes into narrow shape, the wiring density of the signal lines can be improved. In addition, the diameter of the through-holes is small but their length is large and sufficient areas can be ensured on the inner surface of the through-holes. Therefore, the through-hole conductors can be formed properly, and degradation in the electrical characteristics of the through-hole conductors can be prevented.
      COPYRIGHT: (C)2000,JPO
    • 要解决的问题:确保适当的通孔导体,进一步降低导体间距。 解决方案:BGA.IC1的BGA2具有基体3作为芯4.在芯体4的第一主表面上形成接地导体5,并且在整个接地导体上形成绝缘膜9 如图5所示,多个信号线10在绝缘膜9上形成为径向图案。 在信号线10的内侧形成有接合焊盘11,通过形成为窄通孔14的通孔导体15,将信号线10的外侧端部与凸起的焊盘12电连接。由于 可以通过将通孔形成为窄的形状来减小信号线的间距,可以提高信号线的配线密度。 此外,通孔的直径小,但是它们的长度大,并且在通孔的内表面上可以确保足够的面积。 因此,可以适当地形成通孔导体,并且可以防止通孔导体的电特性的劣化。