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    • 3. 发明申请
    • METHOD OF MAKING A NONVOLATILE MEMORY DEVICE
    • 制造非易失性存储器件的方法
    • WO2010005866A1
    • 2010-01-14
    • PCT/US2009/049518
    • 2009-07-02
    • SANDISK 3D LLCPING, Er-xuanTHAKUR, RandhirSCHEUGRAF, Klaus
    • PING, Er-xuanTHAKUR, RandhirSCHEUGRAF, Klaus
    • H01L27/10H01L27/102H01L21/768
    • H01L27/1021H01L21/7688H01L27/101
    • A method of making a semiconductor device includes forming a pillar shaped semiconductor device surrounded by an insulating layer (108) such that a contact hole (111) in the insulating layer exposes an upper surface of the semiconductor device. The method also includes forming a shadow mask layer (302) over the insulating layer (108) such that a portion of the shadow mask layer (302) overhangs a portion of the contact hole (111), forming a conductive layer such that a first portion (304) of the conductive layer is located on the upper surface of the semiconductor device exposed in the contact hole and a second portion (306) of the conductive layer is located over the shadow mask layer (302), and removing the shadow mask layer (302) and the second portion (306) of the conductive layer.
    • 制造半导体器件的方法包括形成由绝缘层(108)围绕的柱状半导体器件,使得绝缘层中的接触孔(111)露出半导体器件的上表面。 该方法还包括在绝缘层(108)上形成阴影掩模层(302),使得阴影掩模层(302)的一部分突出在接触孔(111)的一部分上,形成导电层,使得第一 导电层的部分(304)位于暴露在接触孔中的半导体器件的上表面上,导电层的第二部分(306)位于荫罩层(302)的上方,并且去除荫罩 层(302)和导电层的第二部分(306)。