Intelligent machines and process for production of monocrystalline products with goniometer continual feedback
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United States of America Patent
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Sep 4, 2012
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app pub date -
May 25, 2010
filing date -
May 25, 2010
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Abstract
The present invention consists of an x-ray goniometer which is positioned directly adjacent to processing machines used in the cutting, milling, drilling and shaping of crystal boules and crystal ingots, used in conjunction with an adjustable tilt platform capable of pitch, yaw and roll movement, to allow in-situ measurement and automatic adjustment of crystal orientation with respect to the processing machine. The goniometer may be secured to either the tool itself or a portion of the machine which is adjacent the piece to be worked. Various embodiments include an x-ray goniometer and adjustable tilt platform incorporated into a core drilling machine, wire saw, surface grinder, polishing apparatus, or orientation flat or notch grinder. Incorporating an x-ray goniometer and adjustable tilt platform directly into a crystal processing machine results in a significant decrease in overall processing time and labor, and a significant increase in precision when processing crystal ingots into a final product, such as a notched wafer.
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