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公开(公告)号:CA2673523A1
公开(公告)日:2008-07-10
申请号:CA2673523
申请日:2007-12-21
Applicant: SAINT GOBAIN CERAMICS
Inventor: CHINNAKARUPPAN PALANIAPPAN , RIZZUTO ROBERT A , VEDANTHAM RAMANUJAM , TANIKELLA BRAHMANANDAM V , CHERIAN ISAAC K
Abstract: A method of machining a sapphire substrate comprises grinding a first sur face of a sapphire substrate using a first fixed abrasive and grinding said first surface of the sapphire substrate using a second fixed abrasive, where in the second fixed abrasive has a smaller average grain size than the first fixed abrasive, and wherein the second, fixed abrasive is self -dressing.
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公开(公告)号:IN1903MUN2014A
公开(公告)日:2015-07-10
申请号:IN1903MUN2014
申请日:2014-09-24
Applicant: SAINT GOBAIN CERAMICS
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.
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公开(公告)号:PL2121242T3
公开(公告)日:2012-07-31
申请号:PL07855323
申请日:2007-12-21
Applicant: SAINT GOBAIN CERAMICS
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公开(公告)号:CA2673662C
公开(公告)日:2012-07-24
申请号:CA2673662
申请日:2007-12-21
Applicant: SAINT GOBAIN CERAMICS
Inventor: TANIKELLA BRAHMANANDAM V , SIMPSON MATTHEW A , CHINNAKARUPPAN PALANIAPPAN , RIZZUTO ROBERT A , VEDANTHAM RAMANUJAM
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/cm2, 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.
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公开(公告)号:UA97969C2
公开(公告)日:2012-04-10
申请号:UAA200906860
申请日:2007-12-21
Applicant: SAINT GOBAIN CERAMICS
Inventor: TANIKELLA BRAHMANANDAM V , SIMPSON MATTHEW A , CHINNAKARUPPAN PALANIAPPAN , RIZZUTO ROBERT A , CHERIAN ISAAC K , VEDANTHAM RAMANUJAM
IPC: C30B29/20
Abstract: Описанасапфирнаяоснова, котораяимеетв целомплоскуюповерхностьс кристаллографическойориентацией, выбраннойизгруппы, котораясостоитиза-плоскостной, r-плоскостной, m-плоскостнойи с-плоскостнойориентаций, ивеличиной nTTV неболее, чемприблизительно 0,037 мкм/см, где nTTV являетсяобщейвариациейтолщины, нормированнойк площадиповерхностиуказаннойв целомплоскойповерхности, гдеуказанаосноваимеетдиаметрнеменее, чемприблизительно .
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公开(公告)号:UA97126C2
公开(公告)日:2012-01-10
申请号:UAA200906861
申请日:2007-12-21
Applicant: SAINT GOBAIN CERAMICS
Inventor: TANIKELLA BRAHMANANDAM V , CHINNAKARUPPAN PALANIAPPAN , RIZZUTO ROBERT A , CHERIAN ISAAC K , VEDANTHAM RAMANUJAM
Abstract: Процессмеханическойобработкисапфирнойосновывключает: шлифовкупервойповерхностисапфирнойосновыс помощьюпервогофиксированногоабразиваи шлифованияуказаннойпервойповерхностисапфирнойосновыс помощьювторогофиксированногоабразива, гдевторойфиксированныйабразивимеетменьшийсреднийразмерзерна, чемпервыйфиксированныйабразиви являетсясамозатачивающимся.
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公开(公告)号:CA2673660A1
公开(公告)日:2008-07-10
申请号:CA2673660
申请日:2007-12-21
Applicant: SAINT GOBAIN CERAMICS
Inventor: CHERIAN ISAAC K , VEDANTHAM RAMANUJAM , CHINNAKARUPPAN PALANIAPPAN , SIMPSON MATTHEW A , TANIKELLA BRAHMANANDAM V , RIZZUTO ROBERT A
IPC: C30B29/20
Abstract: A sapphire substrate includes a generally planar surface having a crystal lographic 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 a bout 0.037 µm/cm2, wherein nTTV is total thickness variation normalized for surface area of the generally planar surface, the substrate having a diamete r not less than about 9.0 cm.
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