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Glass substrate adhesion control

A technology of adhesion and glass flakes, applied in glass manufacturing equipment, glass transportation equipment, manufacturing tools, etc., can solve problems such as bottlenecks

Active Publication Date: 2020-11-06
CORNING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Uneven surface fit may be the most significant bottleneck in a successful patterning process

Method used

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  • Glass substrate adhesion control
  • Glass substrate adhesion control
  • Glass substrate adhesion control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0103] in targeting Figures 1 to 11 The device shown handles Eagle Glass substrate (100mm 2 ) (available from Corning Incorporated), using a 40 mm diameter roll with a sponge surface of a polyurethane compound having an open porous network and a hardness of about 5 Shore A, and a liquid etchant composition that reacts at room temperature (e.g., about 25°C) including 60% by weight of acetic acid, 10% by weight of NH 4 F and 30 weight percent H 2 O. The etchant composition contact time is 30 to 230 seconds, the roll speed is varied in the range of 5 mm / s to 150 mm / s, and the dipping roll depth D s (referred to as immersion level or immersion level in the figure) varies in the range of 2 mm to 10 mm.

Embodiment 2

[0111] in targeting Figures 1 to 11 The shown device handles a Lotus with the following dimensions TM NXT glass substrate (100mm 2 ) (available from Corning Incorporated), using a 40 mm diameter roll with a sponge surface of a polyurethane compound having an open porous network and a hardness of about 5 Shore A, and a liquid etchant composition at 40 ℃ including 0.35M NaF:1M H 3 PO 4 . The liquid etchant composition contact time ranges from 10 to 60 seconds, the roll speed varies from 25 mm / s to 150 mm / s, and the dip roll depth D s (called the level of impregnation) varies from 2 mm to 10 mm.

Embodiment 3

[0115] in targeting Figures 1 to 11 The device shown handles the ion exchange Glass 3 glass substrate (100mm 2 ) (available from Corning Incorporated), using a 40 mm diameter roll with a sponge surface of a polyurethane compound having an open porous network and a hardness of about 5 Shore A, and a liquid etchant composition at 40 ℃ including 0.35M NaF:1M H 3 PO 4 . The liquid etchant composition contact time ranged from 30 to 60 seconds, the roll speed was maintained at 125 mm / s, and the dip roll depth D s (referred to as the dipping level) was maintained at 6 mm.

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Abstract

Methods of processing or modifying a glass substrate such as a glass sheet are disclosed. A method includes contacting at least one of opposing major surfaces of the glass sheet with a fluid applicator apparatus and a liquid etchant composition including acetic acid, ammonium fluoride, and water, the contacting conducted at a predetermined transfer rate of the liquid etchant to the at least one ofthe opposing major surfaces. The predetermined liquid transfer rate is controlled to adjustably texture the at least one of the opposing major surfaces and provide a textured major surface, wherein when the textured major surface and a planar surface are placed in contact, there is an adhesion force between the textured major surface and the planar surface, and wherein the adhesion force is within a target adhesion force range.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of priority under 35 U.S.C. §119 to U.S. Provisional Application No. 62 / 639,707, filed March 7, 2018, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to controlling adhesion between a glass substrate having a planar surface and another article having a planar surface, and more particularly, to methods of controlling adhesion of a flat glass substrate to a planar surface. Background technique [0004] Planar surfaces that are in intimate contact with each other often adhere due to the interaction of several types of materials. Depending on the material systems involved, as well as geometric and / or constructional factors, the force required to separate two surfaces can vary from slight to dramatic. This can pose a significant challenge to flat panel display manufacturing processes, where large, highly flat and thin gla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C21/00C03C15/00C03B35/16
CPCC03C15/00C03C3/085C03C21/001C03B35/16C03C3/087C03C3/091
Inventor 加布里埃尔·P·阿格尼欧T·V·布朗静贺N·Z·哲列夫
Owner CORNING INC
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