发明名称 Nonvolatile semiconductor memory device and related method
摘要 A nonvolatile memory device and a method for fabricating the nonvolatile memory device are disclosed. The method comprises forming a device isolation pattern comprising a first opening and a second opening wider than the first opening, wherein the first opening is formed in the second opening; and forming a gate insulating layer on a first portion of an active region of the substrate, wherein the first opening exposes the first portion of the active region of the substrate. The method further comprises forming a first conductive layer in the first and second openings and on the gate insulating layer, partially etching the first conductive layer to form a U-shaped floating gate electrode, forming a gate interlayer insulating layer on the U-shaped floating gate electrode, forming a second conductive layer on the gate interlayer insulating layer and the device isolation pattern, and patterning the second conductive layer.
申请公布号 US7514741(B2) 申请公布日期 2009.04.07
申请号 US20060491194 申请日期 2006.07.24
申请人 SAMSUNG ELECTRONICS CO., LTD. 发明人 LEE SEUNG-JUN;HAN DONG-GYUN
分类号 H01L27/115 主分类号 H01L27/115
代理机构 代理人
主权项
地址