What causes anisotropic etching?

When ions bombard the surface perpendicularly, the etch rate in the vertical direction caused by assisted reactions is drastically higher than horizontal directions caused by radicals. Therefore, an anisotropic etch profile is accomplished through ion-assisted reactions.

What is anisotropic wet etching?

Definition. Anisotropic etching is a subtractive microfabrication technique that aims to preferentially remove a material in specific directions to obtain intricate and often flat shapes. Wet techniques exploit the crystalline properties of a structure to etch in directions governed by crystallographic orientation.

What is the meaning of isotropic and anisotropic?

isotropic: Properties of a material are identical in all directions. anisotropic: Properties of a material depend on the direction; for example, wood. In a piece of wood, you can see lines going in one direction; this direction is referred to as “with the grain”.

What is optical anisotropy?

[′äp·tə·kəl ‚an·ə′sä·trə·pē] (optics) The behavior of a medium, or of a single molecule, whose effect on electromagnetic radiation depends on the direction of propagation of the radiation.

What is difference between isotopic and anisotropic?

Isotropic refers to the properties of a material which is independent of the direction whereas anisotropic is direction-dependent.

Who discovered optical anisotropy?

BARTHOLINUS
It was found by BARTHOLINUS with calcite in 1670, and later was carefully investigated by HUYGENS. He explained the phenomenology of double refraction by assuming that the incident wave gives rise to two waves.

Does anisotropic filtering affect FPS?

Generally, anisotropic filtering can noticeably affect framerate and it takes up video memory from your video card, though the impact will vary from one computer to another. When the in-game camera views textures from an oblique angle, they tend to become distorted without anisotropic filtering.

What is anisotropy material?

Anisotropy (/ˌæn. ə-, ˌæn. aɪˈsɒtr. əp. i/) is the property of a material which allows it to change or assume different properties in different directions as opposed to isotropy.

What is isotropic etching process?

Isotropic etching is a method commonly used in semiconductors to remove material from a substrate via a chemical process using an etchant substance. Unlike anisotropic etching, isotropic etching does not etch in a single direction, but rather etches in multiple directions within the substrate.