发明授权
US08163640B2 Metal gate compatible electrical fuse 失效
金属门兼容电保险丝

Metal gate compatible electrical fuse
摘要:
A dielectric material layer is formed on a metal gate layer for a metal gate electrode, and then lithographically patterned to form a dielectric material portion, followed by formation of a polycrystalline semiconductor layer thereupon. A semiconductor device employing a metal gate electrode is formed in a region of the semiconductor substrate containing a vertically abutting stack of the metal gate layer and the polycrystalline semiconductor layer. A material stack in the shape of an electrical fuse is formed in another region of the semiconductor substrate containing a vertical stack of the metal gate layer, the dielectric material portion, and the polycrystalline semiconductor layer. After metallization of the polycrystalline semiconductor layer, an electrical fuse containing a polycrystalline semiconductor portion and a metal semiconductor alloy portion is formed over the dielectric material portion that separates the electrical fuse from the metal gate layer.
公开/授权文献
信息查询
0/0