发明名称 Method for forming landing pad
摘要 The present invention provides a method for landing pads in the semiconductor devices, comprising the following steps: providing a semiconductor substrates with a plurality of active regions, a plurality of gate structures above the active regions and a plurality of source/drain regions, while each gate structure comprises a top cap layer and sidewall spacers; forming a conductive layer over the substrate; removing a portion of the conductive layer above the gate structure using the top cap layer of the gate structure as a stop layer, so that a height of the conductive layer is lower than a height of the gate structure; forming a patterned mask layer, right above the active regions, over the substrate; performing an etching step to define the conductive layer above the active regions; and removing the patterned mask layer and forming landing pads on the active regions.
申请公布号 US6479355(B2) 申请公布日期 2002.11.12
申请号 US20010784235 申请日期 2001.02.13
申请人 UNITED MICROELECTRONICS CORP. 发明人 WU KING-LUNG;LIN KUN-CHI
分类号 H01L21/768;H01L21/8234;(IPC1-7):H01L21/336 主分类号 H01L21/768
代理机构 代理人
主权项
地址