Thin glass substrate, method and apparatus for its production

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United States of America Patent

PATENT NO 12005687
APP PUB NO 20230191741A1
SERIAL NO

18171925

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A thin glass substrate, as well as a method and an apparatus are provided. The glass substrate has a glass having first and second main surfaces and elongated elevations on one of the main surfaces. The elevations rise in a normal direction, have a longitudinal extent that is greater than two times a transverse extent, and have a height, on average, that is less than 100 nm, and with a transverse extent of the elevation smaller than 40 mm. The method includes melting a glass, hot forming the glass, and adjusting a viscosity of the glass so that for the viscosity η1 for a first stretch over a first distance of up to 1.5 m downstream of a flow rate control component and y1 indicating a second distance to a location immediately downstream the flow rate control component the equation lg η1(y1)/dPa·s=(lg η01/dPa·s+a1(y1)) applies.

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Patent Owner(s)

Patent OwnerAddress
SCHOTT AGGERMANY MAINZ MAINZ RHINELAND-PALATINATE

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alkemper, Jochen Klein-Winternheim, DE 48 423
Dietrich, Rüdiger Jena, DE 10 16
Klippe, Lutz Wiesbaden, DE 23 698
Kunert, Christian Wiesbaden, DE 33 214
Meister, Michael Mainz, DE 17 161
Schmiady, Thomas Jena, DE 8 6
Vogl, Armin Jena, DE 17 209
Zachau, Thilo Neuengoenna, DE 30 252

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