- 专利标题: Glass substrates with strategically imprinted B-side features and methods for manufacturing the same
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申请号: US13218932申请日: 2011-08-26
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公开(公告)号: US09676649B2公开(公告)日: 2017-06-13
- 发明人: Michael Sean Dobbins , James Robert Lim , Hung Cheng (Henry) Lu , Wanda Janina Walczak , Liming Wang , Ruchirej Yongsunthon
- 申请人: Michael Sean Dobbins , James Robert Lim , Hung Cheng (Henry) Lu , Wanda Janina Walczak , Liming Wang , Ruchirej Yongsunthon
- 申请人地址: US NY Corning
- 专利权人: Corning Incorporated
- 当前专利权人: Corning Incorporated
- 当前专利权人地址: US NY Corning
- 代理商 Thomas R. Beall; Matthew J. Mason; Jeffrey A. Schmidt
- 主分类号: B32B3/30
- IPC分类号: B32B3/30 ; C03B17/06 ; C03B23/02 ; C03C19/00 ; H01L29/786 ; G02F1/1333
摘要:
Glass substrates and methods for forming glass substrates are disclosed. The glass substrates include a planar A-side surface having a surface roughness Ra1 of less than 0.5 nm and a planar B-side having a surface roughness Ra2 wherein the ratio Ra2:Ra1 is greater than or equal to about 1.5. A plurality of texturing features are formed in the B-side surface. The plurality of texturing features have a peak-to-valley height H such that 0.05 μm≦H≦3.75 μm. The texturing features are distributed in the B-side surface such that a center-to-center pitch P between adjacent texturing features is at least 1.5 mm in at least one direction. The plurality of texturing features are formed in the B-side surface while the glass substrate is at a temperature T1, wherein 600° C.≦T1≦1200° C. and a viscosity of the glass substrate is from greater than 150,000 Poise and less than 1013 Poise.
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