SURFACE ACOUSTIC WAVE DEVICE AND METHOD FOR FABRICATING THE SAME

    公开(公告)号:US20230009805A1

    公开(公告)日:2023-01-12

    申请号:US17393384

    申请日:2021-08-03

    Abstract: A method for fabricating a surface acoustic wave (SAW) device includes the steps of forming a first dielectric layer on a substrate, forming a piezoelectric layer on the first dielectric layer, forming a second dielectric layer on the piezoelectric layer, performing a photo-etching process to remove the second dielectric layer for forming a recess in the second dielectric layer, forming a metal layer in the recess, and then performing a planarizing process to remove the metal layer for forming an electrode in the recess.

    Semiconductor device and method for fabricating the same
    8.
    发明授权
    Semiconductor device and method for fabricating the same 有权
    半导体装置及其制造方法

    公开(公告)号:US09553026B1

    公开(公告)日:2017-01-24

    申请号:US14960447

    申请日:2015-12-07

    Abstract: A method for fabricating semiconductor device is disclosed. First, a substrate is provided, and a first mandrel, a second mandrel, a third mandrel, and a fourth mandrel are formed on the substrate. Preferably, the first mandrel and the second mandrel include a first gap therebetween, the second mandrel and the third mandrel include a second gap therebetween, and the third mandrel and the fourth mandrel include a third gap therebetween, in which the first gap is equivalent to the third gap but different from the second gap. Next, spacers are formed adjacent to the first mandrel, the second mandrel, the third mandrel, and the fourth mandrel, and the spacers in the first gap and the third gap are removed.

    Abstract translation: 公开了半导体器件的制造方法。 首先,设置基板,在基板上形成第一芯轴,第二心轴,第三心轴,第四心轴。 优选地,第一心轴和第二心轴包括其间的第一间隙,第二心轴和第三心轴在其间包括第二间隙,并且第三心轴和第四心轴在其间包括第三间隙,其中第一间隙等于 第三个差距,但与第二个差距不同。 接下来,在第一心轴,第二心轴,第三心轴和第四心轴附近形成间隔物,并且去除第一间隙和第三间隙中的间隔物。

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