The plasma etching is the etching process produces the more anisotropic etching in fabrication.
What is anisotropic?
In contrast to isotropy, a material's ability to alter or take on various qualities in different directions
What is etching process ?
Chemical etching is a type of engraving that removes material from metal while also etching a permanent image using a high-pressure, high-temperature chemical spray. To generate the desired picture, the material's surface is covered with a mask or resist, which is then carefully peeled off, revealing the metal.
Therefore, plasma etching is the etching process produces the more anisotropic etching in fabrication.
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