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    • 7. 发明授权
    • Method for forming trench isolation regions
    • 形成沟槽隔离区域的方法
    • US06387776B1
    • 2002-05-14
    • US09520716
    • 2000-03-08
    • Jong-Seung YiTae Wook SeoJin-Ho Jeon
    • Jong-Seung YiTae Wook SeoJin-Ho Jeon
    • H01L2176
    • H01L21/76232
    • A method for forming trench isolation regions in a semiconductor device reliably electrically isolates a device and enhances a device density. The method for forming trench isolation regions includes forming a trench on a surface of a semiconductor device with a predetermined depth; forming a nitride liner layer on the surface of the semiconductor including the trench, forming a gas distribution region which is uniformly distributed on the nitride liner layer; and forming an insulation layer by filling the trench after said forming of the gas distribution region. The gas distribution region is preferably formed by introducing an ozone gas. The insulation layer is preferably formed by simultaneously introducing ozone gas and TEOS(Tetra Ethyl Ortho-Silicate) chemical.
    • 在半导体器件中形成沟槽隔离区域的方法可靠地电隔离器件并提高器件密度。 用于形成沟槽隔离区的方法包括在半导体器件的表面上形成具有预定深度的沟槽; 在包括沟槽的半导体的表面上形成氮化物衬垫层,形成均匀分布在氮化物衬垫层上的气体分布区域; 以及在形成气体分配区域之后通过填充沟槽来形成绝缘层。 优选通过引入臭氧气体来形成气体分布区域。 绝缘层优选通过同时引入臭氧气体和TEOS(四乙基正硅酸盐)化学品而形成。