Production method of sapphire touch screen panel

A production method, sapphire technology, applied in stone processing equipment, fine working devices, machine tools suitable for grinding workpiece edges, etc., can solve the problems of poor touch screen quality and low yield, and achieve good uniformity and wafer structure Effects of integrity, viscosity, and interfacial film property stabilization

Active Publication Date: 2017-01-04
溧阳畅宇科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the touch screen of this invention still has the problems of poor quality and low yield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The production method of the sapphire touch screen panel of the present embodiment specifically includes the following steps:

[0030] Step 1. Crystal ingot; take the C-oriented sapphire crystal, and then use the rod-extracting machine to extract the rod, so as to obtain the C-oriented crystal ingot;

[0031] Step 2, crystal cutting: use diamond wire cutting equipment to cut the ingot, so as to obtain the wafer;

[0032] Step 3: Take the slice by laser; put the polished wafer into the laser cutting machine and pass through the protective gas, and cut the wafer into the corresponding size according to the requirement;

[0033] Step 4. Grinding; use a grinding machine to grind the wafer; when grinding, add grinding liquid, the grinding disc pressurizes the wafer to 0.022Mpa, and the speed of the grinding disc is 1200rpm / min; after the grinding is completed, clean it with absolute ethanol; The grinding liquid components include by weight percentage: 2% cubic boron nitride...

Embodiment 2

[0040] The production method of the sapphire touch screen panel of the present embodiment specifically includes the following steps:

[0041] Step 1. Crystal ingot; take the C-oriented sapphire crystal, and then use the rod-extracting machine to extract the rod, so as to obtain the C-oriented crystal ingot;

[0042] Step 2, crystal cutting: use diamond wire cutting equipment to cut the ingot, so as to obtain the wafer;

[0043] Step 3: Take the slice by laser; put the polished wafer into the laser cutting machine and pass through the protective gas, and cut the wafer into the corresponding size according to the requirement;

[0044] Step 4. Grinding; use a grinding machine to grind the wafer; when grinding, add grinding liquid, the grinding disc pressurizes the wafer to 0.02Mpa, and the speed of the grinding disc is 1000rpm / min; after the grinding is completed, clean it with absolute ethanol; The grinding liquid components include by weight percentage: 0.5% cubic boron nitrid...

Embodiment 3

[0050] The production method of the sapphire touch screen panel of the present embodiment specifically includes the following steps:

[0051] Step 1. Crystal ingot; take the C-oriented sapphire crystal, and then use the rod-extracting machine to extract the rod, so as to obtain the C-oriented crystal ingot;

[0052] Step 2, crystal cutting: use diamond wire cutting equipment to cut the ingot, so as to obtain the wafer;

[0053] Step 3: Take the slice by laser; put the polished wafer into the laser cutting machine and pass through the protective gas, and cut the wafer into the corresponding size according to the requirement;

[0054] Step 4. Grinding; use a grinding machine to grind the wafer; when grinding, add grinding liquid, the grinding disc pressurizes the wafer to 0.02Mpa, and the speed of the grinding disc is 1100rpm / min; after the grinding is completed, clean it with absolute ethanol; The grinding liquid components include by weight percentage: 1% cubic boron nitride ...

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Abstract

The invention relates to a production method for sapphire touch screen panels. The specific steps comprise: crystal rod picking, crystal cutting, laser wafer taking, grinding, chamfering, annealing, double-sided polishing, printing ink coating, and heat drying. The production method for sapphire touch screen panels is high in finished wafer quality, low in percent defective, and high in production efficiency.

Description

technical field [0001] The invention relates to a production method of a sapphire sheet, in particular to a production method of a sapphire touch screen panel, and belongs to the technical field of sapphire processing. Background technique [0002] In modern life, electronic products such as mobile phones and tablet computers have become indispensable electronic products for people, and large screens have become the development trend of electronic products such as mobile phones, which requires higher and higher strength and light transmittance of touch screen panels. . [0003] With the advancement of technology, touch screen panels made of sapphire are used more and more widely. Sapphire has very good thermal properties, excellent electrical properties and dielectric properties, can maintain high strength at high temperatures, excellent thermal properties and transmittance, and is chemically resistant. The touch screen panel made of sapphire has high definition, good thre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28D5/00B28D5/04B23K26/38B24B37/08B24B37/04B24B9/06
Inventor 苏凤坚刘俊郝正平
Owner 溧阳畅宇科技有限公司
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