Flash-free mold structure for integrated circuit package
    61.
    发明授权
    Flash-free mold structure for integrated circuit package 失效
    无闪存模块结构用于集成电路封装

    公开(公告)号:US06290481B1

    公开(公告)日:2001-09-18

    申请号:US09574878

    申请日:2000-05-19

    Inventor: Chien-Ping Huang

    CPC classification number: B29C45/2701 H01L21/565 H01L2924/0002 H01L2924/00

    Abstract: A flash-free mold structure is designed for use in the molding of an encapsulant for encapsulating a semiconductor die. The flash-free mold structure includes a first molding piece and a second molding piece. The second molding piece is formed with a resin passage for an encapsulating material to flow therethrough during molding process. It is a characteristic feature of this flash-free mold structure that a cutaway portion, which can be either an one-step cutaway portion or a multi-step cutaway portion, is formed at the rim of the resin passage. The cutaway portion is dimensioned significantly smaller than the resin passage for the retarding the flow speed of the encapsulating material from the resin passage into the cutaway portion during the molding process, thereby preventing the encapsulating material from entering the fissure in the junction between the first and second molding pieces. The resin passage can be either a cull, a runner, or a subrunner defined by the first and second molding pieces. With this flash-free mold structure, the IC packaging quality can be assured and fabrication tools can be prevented from contamination.

    Abstract translation: 无闪光模具结构被设计用于模制用于封装半导体管芯的密封剂。 无闪光模具结构包括第一成型件和第二成型件。 第二成型件在模制过程中由用于密封材料的树脂通道形成为流过其中。 这种无闪光模具结构的特征在于,在树脂通道的边缘处形成有可以是一步切口部分或多段切口部分的切口部分。 切割部分的尺寸明显小于树脂通道,用于在模制过程中阻止封装材料从树脂通道进入切除部分的流动速度,从而防止封装材料在第一和第二部分之间的接合处进入裂缝 第二个成型件。 树脂通道可以是由第一和第二成型件限定的剔除,流道或辅助材料。 利用这种无闪光模具结构,可以确保IC封装质量,并可防止制造工具的污染。

    DRIVER HAVING DEAD-TIME COMPENSATION FUNCTION
    66.
    发明申请
    DRIVER HAVING DEAD-TIME COMPENSATION FUNCTION 有权
    具有死亡补偿功能的驾驶员

    公开(公告)号:US20130063059A1

    公开(公告)日:2013-03-14

    申请号:US13589936

    申请日:2012-08-20

    CPC classification number: H02P27/08 H02M2001/385

    Abstract: Proposed is a driver having dead-time compensation function. The driver having dead-time compensation function generates an output voltage according to a voltage command and a frequency command. The driver includes an inverter, an output current detector and a control unit. The inverter receives a DC voltage and operates with a pulse width modulation mode so that the driver outputs the output voltage and an output current. The output current detector detects the current value of the output current to generate a output current detecting signal. The control unit outputs a switching control signal to inverter according to the voltage command and the frequency command. The control unit corrects a reference command according to dead-time and the output current detecting signal related to the output current so that amplitude and waveform smoothness of the output voltage and the output current are compensated.

    Abstract translation: 建议是具有死区补偿功能的驾驶员。 具有死区补偿功能的驱动器根据电压指令和频率指令产生输出电压。 驱动器包括逆变器,输出电流检测器和控制单元。 逆变器接收直流电压并以脉冲宽度调制模式工作,以便驱动器输出输出电压和输出电流。 输出电流检测器检测输出电流的当前值以产生输出电流检测信号。 控制单元根据电压指令和频率指令向逆变器输出切换控制信号。 控制单元根据死区时间和与输出电流相关的输出电流检测信号来校正参考命令,从而补偿输出电压和输出电流的振幅和波形平滑度。

    PACKAGE STRUCTURE HAVING MICRO-ELECTROMECHANICAL ELEMENT
    68.
    发明申请
    PACKAGE STRUCTURE HAVING MICRO-ELECTROMECHANICAL ELEMENT 有权
    具有微电子元件的包装结构

    公开(公告)号:US20120241937A1

    公开(公告)日:2012-09-27

    申请号:US13492220

    申请日:2012-06-08

    Abstract: Proposed is a package structure having a micro-electromechanical (MEMS) element, including a chip having a plurality of electrical connecting pads and a MEMS element formed thereon; a lid disposed on the chip for covering the MEMS element; a stud bump disposed on each of the electrical connecting pads; an encapsulant formed on the chip with part of the stud bumps being exposed from the encapsulant; and a metal conductive layer formed on the encapsulant and connected to the stud bumps. The invention is characterized by completing the packaging process on the wafer directly to enable thinner and cheaper package structures to be fabricated within less time. This invention further provides a method for fabricating the package structure as described above.

    Abstract translation: 提出具有微机电(MEMS)元件的封装结构,其包括具有多个电连接焊盘和形成在其上的MEMS元件的芯片; 设置在所述芯片上用于覆盖所述MEMS元件的盖; 设置在每个电连接焊盘上的螺柱凸块; 形成在芯片上的密封剂,其中一部分柱状凸块从密封剂暴露出来; 以及金属导电层,形成在密封剂上并连接到凸块上。 本发明的特征在于直接完成晶片上的封装工艺,以便在更短的时间内制造更薄和更便宜的封装结构。 本发明还提供如上所述的用于制造封装结构的方法。

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