公开(公告)号：US09777398B2

公开(公告)日：2017-10-03

申请号：US13626412

申请日：2012-09-25

Applicant: Apple Inc.

Inventor： Benjamin J. Pope ,  Christopher D. Prest ,  Dale N. Memering ,  Scott A. Meyers

IPC: C30B15/36 ,  B28D5/00 ,  C30B15/34 ,  C30B29/20

CPC classification number: C30B15/36 ,  B28D5/00 ,  C30B15/34 ,  C30B29/20 ,  Y10T117/1044

Abstract: Systems and method for creating crystalline parts having a desired primary and secondary crystallographic orientations are provided. One embodiment may take the form of a method of manufacturing a part having a crystalline structure. The method includes melting aluminum oxide and drawing the melted aluminum oxide up a slit. Additionally, the method includes orienting the seed crystal relative to a growth apparatus such that a crystalline structure grows having a desired primary plane and a desired secondary plane orientation. Moreover, the method includes pulling the crystal as it forms to create a ribbon shaped crystalline structure and cutting a part from the crystalline structure.