Single-crystal – oriented-crystal – and epitaxy growth processes; – Processes of growth from liquid or supercritical state – Having pulling during growth
Patent
1998-06-04
2000-08-22
Garrett, Felisa
Single-crystal, oriented-crystal, and epitaxy growth processes;
Processes of growth from liquid or supercritical state
Having pulling during growth
117201, 117202, C30B 1520
Patent
active
061066125
ABSTRACT:
A level detector detects the level of an approximately flat surface of a substance in a container. The level detector illuminates a portion of the surface, and detects the location of the illuminated portion on the surface. Based on detecting the location of the illuminated portion, the level detector generates a signal related to the level of the surface, which can represent the level of the surface in a direction perpendicular to the surface. A method for determining a level of a surface of a substance in a container includes illuminating a portion of the surface, detecting a location of the illuminated portion on the surface, and generating a signal related to the level of the surface based on the result of detecting the location of the illuminated portion.
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Garrett Felisa
SEH America Inc.
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