Method of verifying a mask for a mask ROM
    24.
    发明授权
    Method of verifying a mask for a mask ROM 有权
    验证掩模ROM掩模的方法

    公开(公告)号:US06773937B1

    公开(公告)日:2004-08-10

    申请号:US10661482

    申请日:2003-09-15

    CPC classification number: H01L27/1126 H01L22/34 H01L27/11253

    Abstract: In a method to verify a mask for a mask ROM, a serial of random codes that are exclusive to each other are implanted into a plurality of wafers manufactured by a same process with the mask or a plurality of die regions in a single wafer manufactured by a same process with the mask, and then the test results derived from the implanted wafers or die regions are compared to determine if the mask is defective.

    Abstract translation: 在用于验证掩模ROM的掩模的方法中,将彼此排他的一系列随机码植入到通过与单个晶片制造的掩模或多个管芯区域相同的工艺制造的多个晶片中, 与掩模相同的处理,然后比较从植入的晶片或管芯区域得到的测试结果,以确定掩模是否有缺陷。

    Oil seal for a door closing device
    25.
    发明授权
    Oil seal for a door closing device 失效
    闭门装置的油封

    公开(公告)号:US06412785B1

    公开(公告)日:2002-07-02

    申请号:US09657575

    申请日:2000-09-08

    Applicant: Ming-Yu Lin

    Inventor: Ming-Yu Lin

    CPC classification number: E05F3/10 E05F3/04 E05F3/102 E05Y2900/132

    Abstract: A door closing device. The device includes a main body, a shaft, an annular cover mounted in the main body, and a planar gasket. Two ends of the shaft are rotatably supported in the annular cover by a collar. The planar gasket is mounted around the shaft and between the collar and a peripheral edge defining a central annular hole of the annular cover. The planar gasket includes an inner diameter approximately the same as an outer diameter of the shaft and an outer diameter approximately the same as an inner diameter of the annular cover. The planar gasket further includes two opposed planar surfaces.

    Abstract translation: 门关闭装置。 该装置包括主体,轴,安装在主体中的环形盖和平面垫圈。 轴的两端通过轴环可旋转地支撑在环形盖中。 平面垫圈安装在轴周围并且在轴环和限定环形盖的中心环形孔的周边边缘之间。 平面垫圈包括与轴的外径大致相同的内径和与环形盖的内径大致相同的外径。 平面垫圈还包括两个相对的平面表面。

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