Crucible molds
AssigneeGlobalWafers Co., Ltd.
InventorsRichard Joseph Phillips, Salvador Zepeda, Patrick Fredrick Boegemann, III, William Luter
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Abstract
Methods for forming a unitized crucible assembly for holding a melt of silicon for forming a silicon ingot are disclosed. In some embodiments, the methods involve a porous crucible mold having a channel network with a bottom channel, an outer sidewall channel that extends from the bottom channel, and a central weir channel that extends from the bottom channel. A slip slurry may be added to the channel network and the liquid carrier of the slip slurry may be drawn into the mold. The resulting green body may be sintered to form the crucible assembly.
Claims9
A crucible mold comprising:
- a lower portion;
- an upper portion disposed above the lower portion, the upper portion forming:
- a central weir channel;
- and
- an inner weir channel;
- wherein the upper portion and lower portion together form:
- a bottom channel;
- and
- a sidewall channel fluidly connected to the bottom channel, wherein the central weir channel and inner weir channel extend from the bottom channel;
- and
- a central weir peg that extends laterally across the central weir channel to form an opening in a central weir of a crucible formed from the mold.
Dependencies are inferred from the claim text.