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spike definition

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1 : in an epitaxial wafer surface, a tall, thin dendrite or crystalline filament that often occurs at the center or recess. [ASTM F1241] 2 : an extreme structure that has a large ratio of height-to-base width and no apparent relation to epitaxial film thickness. Also see pyramid and mound.

See also:

Spectrochemical Series definition
Spontaneous Resolution definition
specification limits (spec limits) definition
Spectrometers (optical) definition
Spectrometers (optical) definition