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    • 1. 发明公开
    • BALL-GRID-ARRAY RADIO-FREQUENCY INTEGRATED-CIRCUIT PRINTED-CIRCUIT-BOARD ASSEMBLY FOR AUTOMATED VEHICLES
    • 用于自动化车辆的球栅阵列射频集成电路印制电路板组装
    • EP3309896A1
    • 2018-04-18
    • EP17194590.0
    • 2017-10-03
    • Delphi Technologies, Inc.
    • PURDEN, George, JSHI, ShawnZIMMERMAN, David, W
    • H01P3/12H01P5/107
    • H01P5/08H01L23/49827H01L23/49838H01L23/66H01L24/16H01L2223/6616H01L2223/6627H01L2224/16227H01P3/10H01P3/121H01P5/107H05K1/0219H05K1/111H05K1/115
    • A ball-grid-array printed-circuit-board assembly includes a die, a plurality of solder-balls (20), a substrate (26), a top-metal layer (38), and a bottom-metal layer (44). The die includes a signal-out-pad and a plurality of ground-pads arranged about the signal-out-pad. The top-metal layer (38), a plurality of vias (28) in the substrate (26), and the bottom-metal layer (44) cooperate to form a substrate-integrated-waveguide (50). The top-metal layer (38) is configured to define a u-shaped-slot between a signal-portion of the top-metal layer (38) aligned with the signal-out-pad and the substrate-integrated-waveguide (50), and a ground-portion of the top-metal layer (38) aligned with the plurality of ground-pads. The u-shaped-slot is characterized by a slot-length that is selected based on the frequency of a signal, and a slot-width that is selected based on the via-height (36) such that the signal generates an electric field directed across the u-shaped-slot whereby the signal is propagated from the signal-portion of the top-metal layer (38) into the substrate-integrated-waveguide (50).
    • 球栅阵列印刷电路板组件包括管芯,多个焊球(20),基板(26),顶金属层(38)和底金属层(44) 。 管芯包括信号输出焊盘和布置在信号输出焊盘周围的多个接地焊盘。 顶部金属层(38),衬底(26)中的多个通孔(28)和底部金属层(44)协作形成衬底集成波导(50)。 顶部金属层(38)被配置为在与信号输出焊盘对齐的顶部金属层(38)的信号部分和衬底集成波导(50)之间限定U形槽, 以及与多个接地焊盘对齐的顶部金属层(38)的接地部分。 u形槽的特征在于,根据信号的频率选择槽长度,并且基于通孔高度(36)选择槽宽度,使得信号产生被导向的电场 穿过U形槽,由此信号从顶部金属层(38)的信号部分传播到衬底集成波导(50)中。