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Glass touch screen silver wire sintering process

A technology of touch screen and glass, which is applied in the field of silver wire sintering of glass touch screen of large-size notebook computer, can solve the problems of increasing the adhesion of silver wire, etc., and achieve the effect of solving adhesion and simple operation method

Inactive Publication Date: 2012-05-30
TIANJIN ZHONGHUAN HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on this aspect in China. Based on some relevant foreign literature and previous work experience, we have invented a silver wire sintering process for glass touch screens, which increases the adhesion of silver wires on the glass and realizes the glass touch screen. Production

Method used

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Embodiment Construction

[0014] In order to understand the present invention more clearly, describe the present invention in detail in conjunction with example: process step is as follows:

[0015] 1. The stress value of the selected ITO conductive glass is 400Mpa ~ 650Mpa, SiO 2 The thickness of the film layer is ≥300?, the thickness of the ITO film layer is 120±30?, the surface resistance is 350~500Ω / □, the size is 332.9mm*248mm*2.3mmm; the selected silver paste is DuPont 7713; the selected vacuum sintering furnace is L1211II horizontal type vacuum furnace;

[0016] 2. Put the silver printed glass into the oven and bake at 135°C for 15 minutes;

[0017] 3. Take the baked glass out of the oven and put it into the vacuum sintering furnace. The distance between the glass and the glass should be greater than 5 cm, otherwise the quality of the sintered silver wire will be affected;

[0018] 4. After the vacuum in the furnace is evacuated to below 3Pa, the temperature of the furnace is raised to 250°C a...

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PUM

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Abstract

The invention relates to a glass touch screen silver wire sintering process, which comprises the following steps of: placing silver wire printed glass into a baking oven, baking at the temperature of 135 DEG C for 15 minutes, taking the baked glass out from the baking oven, putting into a vacuum sintering furnace with the distance between glass and glass being greater than 5 centimeters, vacuumizing the furnace until the pressure is blew 3Pa, rising the furnace temperature to 250 DEG C at the speed of 10 DEG C / minute, rising the furnace temperature to 325 DEG C at the speed of 5 DEG C / minute, sintering for 10 minutes, rising the furnace temperature to 520 DEG C at the speed of 3 DEG C / minute, sintering for 8 minutes, rising the furnace temperature to 300 DEG C at the speed of 10 DEG C / minute, lowering the furnace temperature to room temperature at the speed of 20 DEG C / minute, inflating the furnace to air pressure outside, opening the furnace door, and taking out the glass. The process provided by the invention has the following advantages: it is the first time to provide a glass touch screen silver wire sintering process at home so as to solve the adhesion problem of silver wire on glass; and the operation method is simple, rapid and energy saving.

Description

technical field [0001] The invention relates to a silver wire sintering process for a glass touch screen, in particular to the silver wire sintering for a large-size notebook computer glass touch screen. Background technique [0002] The launch of the iPhone in recent years has driven the development of touch screen technology. This technology is also being gradually applied to other portable electronic products. As the scale of the mobile phone market continues to increase, and the requirements for smart and convenient mobile phones are getting higher and higher, touch screens, as the most friendly human-machine interface, will be more and more popular in mobile phones. In addition to mobile phones, the application of touch screens in the field of automotive electronics is also becoming more and more extensive. With the rapid development of the automobile industry, people have higher and higher requirements for car entertainment information systems, and car navigation sy...

Claims

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Application Information

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IPC IPC(8): C03C17/06
Inventor 王宪结陈丽婕马颖
Owner TIANJIN ZHONGHUAN HI TECH