METHOD OF PRODUCING FREE-STANDING NET-SHAPE SAPPHIRE
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United States of America Patent
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app pub date -
Nov 4, 2014
filing date -
Apr 29, 2014
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Abandoned
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Abstract
A method for producing one or more free-standing aluminum oxide windows or laminates by using a substrate of aluminum oxide and one or more sacrificial layers that each separates one or more deposited aluminum oxide layer. The sacrificial layer may be decomposed to producing one or more a free-standing aluminum oxide windows. The free-standing windows or laminates are substantially in finished form requiring little or no post growth processing. The produced windows or laminates may be hard, scratch resistant net-shaped sapphire ready for use in cell phones, electronic devices, a tablet computer, watches, glass applications, or the like.
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