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Dislocation density is the areal density of dislocations intersecting a plain, usually the free surface, given as number per cm2.

It may also be the volume density of dislocation line segments, given as the total length of dislocations divided by the containing volume (also 1/cm2), but this is rarely used in semiconductor physics, and more frequently found in engineering.

Dislocation density is typically measured by etching the free surface to form pits around the location at which the dislocation breeches the surface, and is termed etch pit density, or EPD.

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13y ago
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4mo ago

Dislocation density refers to the density or concentration of crystal defects called dislocations in a material. Dislocations are line defects in the crystal structure that affect the material's mechanical properties. High dislocation density can lead to increased strength and hardness in metals, but also reduced ductility and toughness.

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Q: What is dislocation density?
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What is a frank reed dislocation?

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