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公开(公告)号：WO2008083073A1
公开(公告)日：2008-07-10
申请号：PCT/US2007/088550
申请日：2007-12-21
Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC. , TANIKELLA, Brahmanandam V. , SIMPSON, Matthew A. , CHINNAKARUPPAN, Palaniappan , RIZZUTO, Robert A. , CHERIAN, Isaac K. , VEDANTHAM, Ramanujam
Inventor： TANIKELLA, Brahmanandam V. , SIMPSON, Matthew A. , CHINNAKARUPPAN, Palaniappan , RIZZUTO, Robert A. , CHERIAN, Isaac K. , VEDANTHAM, Ramanujam
IPC: C30B29/20
CPC classification number: C30B29/20
Abstract: A sapphire substrate includes a generally planar surface having a crystallographic orientation selected from the group consisting of a-plane, r-plane, m-plane, and c-plane orientations, and having a nTTV of not greater than about 0.037 µm/cm 2 , wherein nTTV is total thickness variation normalized for surface area of the generally planar surface, the substrate having a diameter not less than about 9.0 cm.
Abstract translation: 蓝宝石衬底包括具有选自由a面，r面，m面和c面取向组成的组的结晶取向，且具有不大于约0.037μm/ cm 2的nTTV的大致平坦的表面， SUP> 2，其中nTTV是对于大体上平坦的表面的表面积归一化的总厚度变化，所述基底具有不小于约9.0cm的直径。
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公开(公告)号：WO2008083081A2
公开(公告)日：2008-07-10
申请号：PCT/US2007/088576
申请日：2007-12-21
Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC. , TANIKELLA, Brahmanandam V. , SIMPSON, Matthew A. , CHINNAKARUPPAN, Palaniappan , RIZZUTO, Robert A. , VEDANTHAM, Ramanujam
Inventor： TANIKELLA, Brahmanandam V. , SIMPSON, Matthew A. , CHINNAKARUPPAN, Palaniappan , RIZZUTO, Robert A. , VEDANTHAM, Ramanujam
CPC classification number: B24B7/228 , Y10T428/257 , Y10T428/26
Abstract: A sapphire substrate includes a generally planar surface having a crystallographic orientation selected from the group consisting of a-plane, r-plane, m-plane, and c-plane orientations, and having a nTTV of not greater than about 0.037 µm/cm 2 , wherein nTTV is total thickness variation normalized for surface area of teh generally planar surface, the substrate having a diameter not less than about 9.0 cm.
Abstract translation: 蓝宝石衬底包括具有从由a面，r面，m面和c面取向组成的组中选择的晶体学取向的大致平面表面，并且nTTV不是 大于约0.037微米/平方厘米，其中nTTV是总厚度变化归一化为大致平面表面的表面积，该基底的直径不小于约9.0厘米。
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公开(公告)号：WO2008083081A3
公开(公告)日：2008-11-06
申请号：PCT/US2007088576
申请日：2007-12-21
Applicant: SAINT GOBAIN CERAMICS , TANIKELLA BRAHMANANDAM V , SIMPSON MATTHEW A , CHINNAKARUPPAN PALANIAPPAN , RIZZUTO ROBERT A , VEDANTHAM RAMANUJAM
Inventor： TANIKELLA BRAHMANANDAM V , SIMPSON MATTHEW A , CHINNAKARUPPAN PALANIAPPAN , RIZZUTO ROBERT A , VEDANTHAM RAMANUJAM
CPC classification number: B24B7/228 , Y10T428/257 , Y10T428/26
Abstract: A sapphire substrate includes a generally planar surface having a crystallographic orientation selected from the group consisting of a-plane, r-plane, m-plane, and c-plane orientations, and having a nTTV of not greater than about 0.037 µm/cm 2 , wherein nTTV is total thickness variation normalized for surface area of teh generally planar surface, the substrate having a diameter not less than about 9.0 cm.
Abstract translation: 蓝宝石衬底包括具有选自由a面，r面，m面和c面取向组成的组的结晶取向，且具有不大于约0.037μm/ cm 2的nTTV的大致平坦的表面， SUP> 2，其中nTTV是对于大致平坦表面的表面积归一化的总厚度变化，所述基底具有不小于约9.0cm的直径。
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公开(公告)号：WO2008083071A1
公开(公告)日：2008-07-10
申请号：PCT/US2007/088548
申请日：2007-12-21
Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC. , TANIKELLA, Brahmanandam, V. , CHINNAKARUPPAN, Palaniappan , RIZZUTO, Robert, A. , CHERIAN, Isaac, K. , VEDANTHAM, Ramanujam
Inventor： TANIKELLA, Brahmanandam, V. , CHINNAKARUPPAN, Palaniappan , RIZZUTO, Robert, A. , CHERIAN, Isaac, K. , VEDANTHAM, Ramanujam
Abstract: A method of machining a sapphire substrate comprises grinding a first surface of a sapphire substrate using a first fixed abrasive and grinding said first surface of the sapphire substrate using a second fixed abrasive, wherein the second fixed abrasive has a smaller average grain size than the first fixed abrasive, and wherein the second, fixed abrasive is self -dressing.
Abstract translation: 一种加工蓝宝石衬底的方法包括使用第一固定磨料研磨蓝宝石衬底的第一表面并使用第二固定磨料研磨蓝宝石衬底的第一表面，其中第二固定磨料具有比第一固定磨料更小的平均粒度 固定磨料，其中第二固定磨料是自压的。
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