Tempering method of large-size ultra-thin glass

An ultra-thin glass, large-scale technology, used in glass tempering, glass cutting devices, glass manufacturing equipment, etc., can solve the problem of product bending deformation, lack of good chemical tempering technology, prone to fragments, creases and surface pits and other problems, to achieve the effect of great feasibility

Pending Publication Date: 2022-07-22
WGTECH JIANGXI
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Problems solved by technology

[0005] In the traditional tempering process, the general process for chemical strengthening of small-sized ultra-thin glass substrates below 8 inches is thinning, cutting, and chemical strengthening processes. Ultra-thin products, because the product is too thin and the size is too large, the product is easy to bend and deform, so it is very easy to have bad risks such as fragments, creases and surface pits during the product tempering process
[0006] At present, there is no good chemical tempering technology for large-scale tempered products with a thickness below 50um and a size above 500*400mm

Method used

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  • Tempering method of large-size ultra-thin glass
  • Tempering method of large-size ultra-thin glass
  • Tempering method of large-size ultra-thin glass

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Embodiment Construction

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] Based on the content recorded in the background art, when the ultra-thin glass with a size of 500*400 or more and a thickness of less than 50um is directly tempered by the traditional process, the fragmentation rate is almost 100%, and the size of the ultra-thin glass is relatively large. , there will also be adverse risks such as creases when tempering.

[0046] Based on this, the present invention provides a large-scale ultra...

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Abstract

The invention provides a tempering method of large-size ultrathin glass, which can realize chemical strengthening of an ultrathin glass substrate with the size of more than 400 * 500 and the thickness of less than 50 microns through the technological process of primary etching, primary cutting, primary tempering, secondary etching, secondary cutting and secondary tempering. And greater feasibility is provided for the display application of the large-size ultra-thin glass substrate.

Description

technical field [0001] The invention relates to the technical field of semiconductor technology, and more particularly, to a method for tempering large-sized ultra-thin glass. Background technique [0002] Ultra Thin Glass (UTG for short) mainly refers to glass white sheets with a thickness of less than 30um, which are mainly used in optoelectronic industries such as folding screens and displays. [0003] With the release and promotion of the Samsung Fold series, the folding screen mobile phone has gradually become a popular product in the market. The UTG raw material used in it is not only conducive to reducing the thickness of the fuselage (the thickness is generally 30um), making the fuselage lighter and lighter. At the same time, due to its excellent bending performance, UTG can meet the bending performance of folding screen mobile phones. [0004] With the wide application of UTG products, UTG products are gradually developing to large sizes, and are gradually applied ...

Claims

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Application Information

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IPC IPC(8): C03B27/00C03B27/02C03B27/03C03B33/02C03C15/00
CPCC03B27/00C03B27/02C03B27/03C03B33/02C03C15/00
Inventor 张迅易伟华谢凯立杨会良蓝芬廖小虎
Owner WGTECH JIANGXI
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