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    • 15. 发明申请
    • METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
    • 制造半导体器件的方法
    • US20120122294A1
    • 2012-05-17
    • US13326499
    • 2011-12-15
    • Isao KamiokaJunichi ShiozawaRyu KatoYoshio Ozawa
    • Isao KamiokaJunichi ShiozawaRyu KatoYoshio Ozawa
    • H01L21/762H01L21/28
    • H01L29/7881H01L21/76208H01L27/11521H01L29/66825
    • In one embodiment, a method of manufacturing a semiconductor device includes successively forming first and second films to be processed on a semiconductor substrate. The method further includes removing a predetermined region of the second film by etching, to form a slit part including sidewall parts and a bottom part, the sidewall parts including side surfaces of the second film, and the bottom part including an upper surface of the first film. The method further includes supplying oxidizing ions or nitriding ions contained in plasma, generated by a microwave, a radio-frequency wave, or electron cyclotron resonance, to the sidewall parts and the bottom part of the slit part by applying a predetermined voltage to the semiconductor substrate, thereby performing anisotropic oxidation or anisotropic nitridation of the sidewall parts and the bottom part of the slit part.
    • 在一个实施例中,制造半导体器件的方法包括在半导体衬底上依次形成待处理的第一和第二膜。 该方法还包括通过蚀刻去除第二膜的预定区域,以形成包括侧壁部分和底部的狭缝部分,所述侧壁部分包括第二膜的侧表面,并且底部包括第一膜的上表面 电影。 该方法还包括通过向半导体施加预定电压将由微波,射频波或电子回旋共振产生的等离子体中包含的氧化离子或氮化离子供应到狭缝部分的侧壁部分和底部。 从而进行侧壁部和狭缝部的底部的各向异性氧化或各向异性氮化。