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    • 6. 发明授权
    • Methods of fabricating isolation regions of semiconductor devices and structures thereof
    • 制造半导体器件的隔离区域的方法及其结构
    • US08501632B2
    • 2013-08-06
    • US11312878
    • 2005-12-20
    • Chris StapelmannArmin Tilke
    • Chris StapelmannArmin Tilke
    • H01L21/31H01L21/469
    • H01L21/0228H01L21/0217H01L21/0234H01L21/02348H01L21/3105H01L21/3141H01L21/3185H01L21/76232
    • Methods of fabricating isolation regions of semiconductor devices and structures thereof are disclosed. A preferred embodiment includes forming at least one trench in a workpiece, and forming a thin nitride liner over sidewalls and a bottom surface of the at least one trench and over a top surface of the workpiece using atomic layer deposition (ALD). An insulating material is deposited over the top surface of the workpiece, filling the at least one trench. At least a portion of the insulating material is removed from over the top surface of the workpiece. After removing the at least a portion of insulating material from over the top surface of the workpiece, the thin nitride liner in the at least one trench is at least coplanar with the top surface of the workpiece. The thin nitride liner and the insulating material form an isolation region of the semiconductor device.
    • 公开了制造半导体器件的隔离区域的方法及其结构。 优选实施例包括在工件中形成至少一个沟槽,以及在所述至少一个沟槽的侧壁和底表面上以及使用原子层沉积(ALD)在工件的顶表面上方形成薄氮化物衬垫。 绝缘材料沉积在工件的顶表面上,填充至少一个沟槽。 绝缘材料的至少一部分从工件的顶表面上去除。 在从工件的上表面上除去绝缘材料的至少一部分之后,至少一个沟槽中的薄氮化物衬垫至少与工件的顶表面共面。 薄氮化物衬垫和绝缘材料形成半导体器件的隔离区域。