Process for controlling insulating film thickness across a semiconductor wafer
    1.
    发明授权
    Process for controlling insulating film thickness across a semiconductor wafer 失效
    用于控制半导体晶片上的绝缘膜厚度的工艺

    公开(公告)号:US3899372A

    公开(公告)日:1975-08-12

    申请号:US41151873

    申请日:1973-10-31

    Applicant: IBM

    Abstract: The invention is a process of fabricating semiconductor devices including an insulating film across the surface that has a planar configuration. Alternatively, the film may be of uniform thickness and non-planar configuration. Both the planar and uniform thickness characteristics of the insulating film permit openings to be formed therein without over etching a defined surface area and conductors to be formed thereon without broadening. An important feature of the invention is utilizing the differential growth rate of films on semiconductor surfaces and/or selection of a suitable initial film thickness as a diffusion mask. The initial film thickness also contributes to a planar or uniform film thickness or other configuration across the device.

    Abstract translation: 本发明是制造半导体器件的方法,该半导体器件包括跨过表面的绝缘膜,该绝缘膜具有平面构型。 或者,膜可以具有均匀的厚度和非平面构造。 绝缘膜的平面和均匀厚度特性都允许在其中形成开口,而不会过度蚀刻限定的表面积,并且在其上形成的导体不会变宽。 本发明的一个重要特征是利用半导体表面上的膜的差分生长速率和/或适当的初始膜厚度的选择作为扩散掩模。 初始膜厚度还有助于平面或均匀的膜厚度或跨装置的其它构型。

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