Air purifier
    21.
    发明授权

    公开(公告)号:US06645266B2

    公开(公告)日:2003-11-11

    申请号:US09983137

    申请日:2001-10-23

    申请人: Ping Huang

    发明人: Ping Huang

    IPC分类号: B01D5000

    摘要: An air purifier has a housing, a motor, a fan, a filtering net, and a power plug. The motor and the fan are positioned in the housing. The filtering net is joined to the front of the housing. The power plug includes a rotatable member and a pair of conductive members; the conductive members have ring-shaped portions concentrically arranged in a chamber of the housing, and are electrically connected to the motor; the rotatable member is rotatably received in the chamber, and has a pair of copper strips, which stick out at outer ends for connection with a power socket, and which constantly touch a respective one of the concentric ring-shaped portions from inner ends in the rotation of the rotatable member for adjustment of the position of the air purifier.

    Air purifier with a rotatable plug
    22.
    发明授权

    公开(公告)号:US06579333B2

    公开(公告)日:2003-06-17

    申请号:US09899254

    申请日:2001-07-06

    申请人: Ping Huang

    发明人: Ping Huang

    IPC分类号: B01D3530

    摘要: An air purifier has a rotatable power plug capable to be inserted directly into a common socket and to be turned around to suit to different directions and positions of various sockets to increase facility in use. Besides, the body of the air purifier is provided with a bulb inside and a bulb switch on an upper side to turn on or turn off the bulb, thus also serving as a lamp lighting at night.

    Air purifier
    23.
    外观设计

    公开(公告)号:USD435097S

    公开(公告)日:2000-12-12

    申请号:US122728

    申请日:2000-05-03

    申请人: Ping Huang

    设计人: Ping Huang

    Air purifier
    24.
    外观设计

    公开(公告)号:USD434128S

    公开(公告)日:2000-11-21

    申请号:US122726

    申请日:2000-05-03

    申请人: Ping Huang

    设计人: Ping Huang

    PACKAGING METHOD OF MOLDED WAFER LEVEL CHIP SCALE PACKAGE (WLCSP)
    28.
    发明申请
    PACKAGING METHOD OF MOLDED WAFER LEVEL CHIP SCALE PACKAGE (WLCSP) 有权
    模压水平切片尺寸包装(WLCSP)的包装方法

    公开(公告)号:US20130210195A1

    公开(公告)日:2013-08-15

    申请号:US13547358

    申请日:2012-07-12

    IPC分类号: H01L21/78

    摘要: A WLCSP method comprises: depositing a metal bump on bonding pads of chips; forming a first packaging layer at front surface of wafer to cover metal bumps while forming an un-covered ring at the edge of wafer to expose the ends of each scribe line located between two adjacent chips; thinning first packaging layer to expose metal bumps; forming a groove on front surface of first packaging layer along each scribe line by cutting along a straight line extended by two ends of scribe line exposed on front surface of un-covered ring; grinding back surface of wafer to form a recessed space and a support ring at the edge of the wafer; depositing a metal layer at bottom surface of wafer in recessed space; cutting off the edge portion of wafer; and separating individual chips from wafer by cutting through first packaging layer, the wafer and metal layer along groove.

    摘要翻译: WLCSP方法包括:在芯片的焊盘上沉积金属凸块; 在晶片的前表面形成第一包装层以覆盖金属凸块,同时在晶片边缘形成未覆盖的环,以露出位于两个相邻芯片之间的每个划线的端部; 稀释第一包装层以暴露金属凸块; 通过沿着未被覆盖的环的前表面上暴露的划线的两端延伸的直线切割沿着每个划线在第一包装层的前表面上形成凹槽; 研磨晶片的后表面以在晶片的边缘处形成凹陷空间和支撑环; 在凹陷空间中在晶片的底面沉积金属层; 切断晶片的边缘部分; 以及通过沿着沟槽切割第一包装层,晶片和金属层,从晶片分离单个芯片。

    WAFER LEVEL PACKAGING METHOD OF ENCAPSULATING THE BOTTOM AND SIDE OF A SEMICONDUCTOR CHIP
    30.
    发明申请
    WAFER LEVEL PACKAGING METHOD OF ENCAPSULATING THE BOTTOM AND SIDE OF A SEMICONDUCTOR CHIP 有权
    封装半导体芯片底部和底部的水平包装方法

    公开(公告)号:US20130095612A1

    公开(公告)日:2013-04-18

    申请号:US13273168

    申请日:2011-10-13

    IPC分类号: H01L21/82

    摘要: A chip-scale packaging method, with bottom and side of a semiconductor chip encapsulated, includes the following steps: attaching backside of a thinned semiconductor wafer to a dicing tape; separating individual chips by cutting from front side of the wafer at scribe line but not cut through the dicing tape; flipping and attaching the wafer onto a top surface of a double-sided tape, then removing the dicing tape; attaching bottom surface of the double-sided tape on a supporting plate; filling the space between adjacent chips and covering the whole wafer backside with a molding material; flipping the whole structure and remove the supporting plate; placing solder balls at corresponding positions on electrodes of each chip and performing backflow treatment; finally separating individual chip packages by cutting through molding material at the space between adjacent chip packages with molding material encapsulating the bottom and side of each individual semiconductor chip.

    摘要翻译: 封装了半导体芯片的底部和侧面的芯片级封装方法包括以下步骤:将薄化的半导体晶片的背面安装到切割带上; 通过在切割线处切割晶片的正面而不切割切割带来分离各个芯片; 翻转并将晶片连接到双面胶带的顶表面上,然后移除切割胶带; 将双面胶带的底面附着在支撑板上; 填充相邻芯片之间的空间并用模制材料覆盖整个晶片背面; 翻转整个结构并拆下支撑板; 将焊球放置在每个芯片的电极上的相应位置,并执行回流处理; 最后通过在封装每个单独的半导体芯片的底部和侧面的成型材料之间切割相邻芯片封装之间的空间处的模制材料来分离单个芯片封装。