Methods of fabricating semiconductor devices
    3.
    发明授权
    Methods of fabricating semiconductor devices 有权
    制造半导体器件的方法

    公开(公告)号:US09590073B2

    公开(公告)日:2017-03-07

    申请号:US14815225

    申请日:2015-07-31

    Abstract: Semiconductor devices and methods of fabricating semiconductor devices are provided. The methods may include forming an interlayer insulation layer on a substrate. The interlayer insulation layer may surround a dummy silicon gate and may expose a top surface of the dummy silicon gate. The methods may also include recessing a portion of the interlayer insulation layer such that a portion of the dummy silicon gate protrudes above a top surface of the recessed interlayer insulation layer and forming an etch stop layer on the recessed interlayer insulation layer. A top surface of the etch stop layer may be coplanarly positioned with the top surface of the dummy silicon gate. The methods may further include forming a trench exposing the substrate by removing the dummy silicon gate using the etch stop layer as a mask.

    Abstract translation: 提供了制造半导体器件的半导体器件和方法。 所述方法可以包括在基底上形成层间绝缘层。 层间绝缘层可以包围虚拟硅栅极并且可以暴露虚拟硅栅极的顶表面。 所述方法还可以包括使所述层间绝缘层的一部分凹陷,使得所述虚拟硅栅极的一部分突出于所述凹陷层间绝缘层的顶表面之上,并在所述凹陷层间绝缘层上形成蚀刻停止层。 蚀刻停止层的顶表面可以与虚拟硅栅极的顶表面共面定位。 所述方法还可以包括通过使用蚀刻停止层作为掩模去除伪硅栅极来形成暴露衬底的沟槽。

    Methods for fabricating semiconductor devices
    4.
    发明授权
    Methods for fabricating semiconductor devices 有权
    制造半导体器件的方法

    公开(公告)号:US08796107B2

    公开(公告)日:2014-08-05

    申请号:US13679345

    申请日:2012-11-16

    Abstract: Provided are methods for fabricating a semiconductor device. The methods include forming a hard mask pattern on a semiconductor substrate, forming a first trench having a first width and a second trench having a second width on the semiconductor substrate using the hard mask pattern as a mask, forming an oxide film on the hard mask pattern and the first and second trenches, forming first and second isolation films on the first and second trenches by planarizing the oxide film until the hard mask pattern is exposed, and etching the first isolation film by a first thickness by performing dry cleaning on the semiconductor substrate and etching the second isolation film by a second thickness different from the first thickness.

    Abstract translation: 提供了制造半导体器件的方法。 所述方法包括在半导体衬底上形成硬掩模图案,使用硬掩模图案作为掩模,在半导体衬底上形成具有第一宽度的第一沟槽和具有第二宽度的第二沟槽,在硬掩模上形成氧化物膜 图案和第一沟槽和第二沟槽,通过平坦化氧化膜直到硬掩模图案露出来在第一和第二沟槽上形成第一和第二隔离膜,并且通过对半导体进行干洗来蚀刻第一隔离膜第一厚度第一厚度 衬底并用不同于第一厚度的第二厚度蚀刻第二隔离膜。

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