Single crystals and methods for fabricating same

Details Single crystals and methods for fabricating same Single crystals and methods for fabricating same

2008-03-25

2008-03-25

McNeil, Jennifer (Department: 1794)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S220000, C428S213000, C428S332000, C117S922000, C117S944000

Reexamination Certificate

active

10820468

ABSTRACT:
Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a maximum thickness variation, and as-formed crystals may have a generally symmetrical neck portion, particularly related to the transition from the neck to the main body of the crystal. Methods and for forming such crystals and an apparatus for carrying out the methods are disclosed as well.

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