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    • 6. 发明申请
    • Printed circuit board unit and printed wiring board
    • 印刷电路板单元和印刷线路板
    • US20080225500A1
    • 2008-09-18
    • US12073369
    • 2008-03-04
    • Yasuhide KurodaTetsuji Ishikawa
    • Yasuhide KurodaTetsuji Ishikawa
    • H05K7/12
    • H05K3/3442H05K1/111H05K2201/09381H05K2201/10636Y02P70/611Y02P70/613
    • An electronic component has a pair of electrically-conductive terminals. Electrically-conductive pads are opposed to each other on the surface of a substrate at the inner edges defined along parallel first reference lines. Solder is placed on the electrically-conductive pads for bonding the electrically-conductive terminals to the electrically-conductive pads, respectively. The electrically-conductive pad includes protruding sections formed continuous with a main section having the side edges along parallel second reference lines intersecting with the first reference lines. The protruding sections protrude outside the second reference lines along corresponding one of the first reference line. The surface tensions of the melted solder on the main section and the protruding sections are balanced with each other. The electronic component is thus prevented from standing up. The electronic component is prevented from suffering from tombstone phenomenon.
    • 电子部件具有一对导电端子。 导电焊盘在沿着平行的第一参考线限定的内边缘处在基板的表面上彼此相对。 焊料放置在导电焊盘上,用于将导电端子分别连接到导电焊盘。 导电垫包括与主部分连续形成的突出部分,该主部分具有沿与第一参考线交叉的平行的第二参考线的侧边缘。 突出部分沿着第一参考线中的相应一个突出到第二参考线的外侧。 主体部分和突出部分上熔化的焊料的表面张力彼此平衡。 因此防止电子部件站起来。 防止电子部件遭受墓碑现象。
    • 7. 发明申请
    • Coil package and bias tee package
    • 线圈封装和偏置三通封装
    • US20070164843A1
    • 2007-07-19
    • US11366625
    • 2006-03-03
    • Takatoshi YagisawaTadashi IkeuchiYasuhide KurodaTszshing Cheung
    • Takatoshi YagisawaTadashi IkeuchiYasuhide KurodaTszshing Cheung
    • H01F27/02
    • H01F5/00H01F27/027H01F2005/006H01Q1/36H01Q19/09H05K1/0243
    • A coil package which makes it easy to handle a high-frequency cone/pyramid-shaped coil and enhance frequency characteristics without degrading the characteristics of the coil. The cone/pyramid-shaped coil has a conical or pyramidal shape formed by wiring a conductor wire around an outer peripheral surface of a core such that the winding diameter of the coil progressively decreases from one end to the other end of the coil. The coil and a dielectric substrate are integrated with each other by forming a hole for inserting a tip portion of the coil in the dielectric substrate, making the bottom of the hole and a back surface of the dielectric substrate electrically continuous by a via, placing the coil in the hole by directing a small-diameter side of the cone/pyramid-shaped coil to the hole, electrically connecting the bottom of the hole and a tip-side lead wire extending from the coil to each other, and connecting an electrode on a large-diameter side of the coil to an electrode on the dielectric substrate.
    • 一种线圈封装,使其易于处理高频锥/棱锥形线圈并增强频率特性,而不会降低线圈的特性。 锥形/棱锥形线圈具有锥形或棱锥形状,其通过将导体线布置在芯的外周表面上而形成,使得线圈的卷绕直径从线圈的一端逐渐减小到另一端。 线圈和电介质基板通过形成用于将线圈的尖端部分插入电介质基板的孔而彼此一体化,使得孔的底部和电介质基板的后表面通过通孔电连续, 通过将锥形/锥体形的线圈的小直径侧引导到孔中,将孔的底部电连接到彼此的线圈和从线圈延伸的尖端侧引线,并将电极 线圈的大直径侧到电介质基板上的电极。
    • 9. 发明授权
    • Coil package and bias tee package
    • 线圈封装和偏置三通封装
    • US07443279B2
    • 2008-10-28
    • US11366625
    • 2006-03-03
    • Takatoshi YagisawaTadashi IkeuchiYasuhide KurodaTszshing Cheung
    • Takatoshi YagisawaTadashi IkeuchiYasuhide KurodaTszshing Cheung
    • H01F27/28H03H7/00
    • H01F5/00H01F27/027H01F2005/006H01Q1/36H01Q19/09H05K1/0243
    • A coil package which makes it easy to handle a high-frequency cone/pyramid-shaped coil and enhance frequency characteristics without degrading the characteristics of the coil. The cone/pyramid-shaped coil has a conical or pyramidal shape formed by wiring a conductor wire around an outer peripheral surface of a core such that the winding diameter of the coil progressively decreases from one end to the other end of the coil. The coil and a dielectric substrate are integrated with each other by forming a hole for inserting a tip portion of the coil in the dielectric substrate, making the bottom of the hole and a back surface of the dielectric substrate electrically continuous by a via, placing the coil in the hole by directing a small-diameter side of the cone/pyramid-shaped coil to the hole, electrically connecting the bottom of the hole and a tip-side lead wire extending from the coil to each other, and connecting an electrode on a large-diameter side of the coil to an electrode on the dielectric substrate.
    • 一种线圈封装,使其易于处理高频锥/棱锥形线圈并增强频率特性,而不会降低线圈的特性。 锥形/棱锥形线圈具有锥形或棱锥形状,其通过将导体线布置在芯的外周表面上而形成,使得线圈的卷绕直径从线圈的一端逐渐减小到另一端。 线圈和电介质基板通过形成用于将线圈的尖端部分插入电介质基板的孔而彼此一体化,使得孔的底部和电介质基板的后表面通过通孔电连续, 通过将锥形/锥体形的线圈的小直径侧引导到孔中,将孔的底部电连接到彼此的线圈和从线圈延伸的尖端侧引线,并将电极 线圈的大直径侧到电介质基板上的电极。
    • 10. 发明授权
    • Sample resistance measurement device
    • 采样电阻测量装置
    • US07360439B2
    • 2008-04-22
    • US11496520
    • 2006-08-01
    • Yasuhide KurodaKenichiro Tsubone
    • Yasuhide KurodaKenichiro Tsubone
    • G01B7/16
    • G01M7/025G01R31/048G01R31/2817H05K2203/162
    • In a circuit, as the bridge resistance of one side of a Wheatstone bridge circuit, a distortion gauge (fixed reference resistance) of which variation caused by environmental conditions is suppressed and a sample having a resistance component ΔR varied by the environmental conditions are connected in series. A constant bridge input voltage Ei is applied from a constant-voltage power supply to the Wheatstone bridge circuit, a bridge output voltage Eo corresponding to resistance variation of the sample is input to a dynamic distortion amplifier, and a carrier wave signal of a predetermined frequency is output. A measured resistance computing unit samples peak levels of the carrier wave signal output from the dynamic distortion amplifier so as to detect the bridge output voltage Eo, and calculates the resistance of the sample based on the detected bridge output voltage.
    • 在电路中,作为惠斯通电桥电路的一侧的桥接电阻,抑制了由环境条件引起的变化的变形量规(固定参考电阻),并且将具有由环境条件变化的电阻分量ΔRR的样品连接在 系列。 从恒压电源向惠斯登电桥电路施加恒定桥输入电压Ei,将与采样电阻变化对应的桥输出电压Eo输入到动态失真放大器,将预定频率的载波信号 被输出。 测量电阻计算单元对从动态失真放大器输出的载波信号的峰值电平进行采样,以检测桥输出电压Eo,并根据检测到的桥输出电压来计算采样电阻。