Conductive film repairing method

A conductive film and conductive grid technology, which is applied in liquid chemical plating, metal material coating process, coating, etc., can solve the problems of conductive grid disconnection, uneven filling of conductive ink, micro deformation of base film, etc., and achieve High reliability, excellent uniformity of resistivity, and high success rate

Pending Publication Date: 2021-07-23
SUZHOU WEIYEDA TOUCH TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the UV imprinting method, the micro-deformation of the base film caused by uneven filling of the conductive ink or sintering may cause one or more disconnections of the conductive grid.

Method used

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Examples

Experimental program
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Embodiment 1

[0041] The mixed chemical solution 30 of the present embodiment is composed of the following substances in terms of mass percentage: copper sulfate 1.2%, potassium sodium tartrate 1.0%, sodium hydroxide 1.2%, formaldehyde 1.0%, and the temperature of the mixed chemical solution 30 is controlled to be 30-35 ℃, let stand for 1h.

Embodiment 2

[0043] The mixed chemical solution 30 of the present embodiment is composed of the following substances in terms of mass percentage: copper sulfate 1.2%, potassium sodium tartrate 1.0%, sodium hydroxide 1.2%, formaldehyde 1.0%, and the temperature of the mixed chemical solution 30 is controlled to be 35-40 ℃, let stand for 1h.

Embodiment 3

[0045] The mixed chemical solution 30 of the present embodiment is composed of the following substances in terms of mass percentage: copper sulfate 1.2%, potassium sodium tartrate 1.0%, sodium hydroxide 1.2%, formaldehyde 1.3%, and the temperature of the mixed chemical solution 30 is controlled to be 30-35 ℃, let stand for 1h.

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PUM

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Abstract

The invention relates to a conductive film repairing method which comprises the following steps of providing a conductive film to be repaired, wherein the conductive film comprises a base film, a structural layer and a conductive mesh, the structural layer and the conductive mesh are located on the base film; the structural layer is provided with a pattern groove, and the conductive mesh is formed by filling the pattern groove with a metal material; carrying out sensitization treatment on the conductive film; placing the conductive film subjected to sensitization treatment in a chemical copper plating solution; adding a reducing solution under a stirring condition; and carrying out standing, so that a deposited copper layer is formed on the surface of the conductive mesh, and the deposited copper layer is further filled in gaps with poor circuit breaking in the conductive mesh. According to the conductive film repairing method provided by the invention, sensitization and chemical copper plating are carried out on the surface of the conductive film, silver or gold in the conductive mesh plays a catalytic role in the process, a high reduction reaction rate exists nearby the conductive mesh, batch repairing can be carried out on the poor circuit breaking of the conductive mesh, the success rate is high, the efficiency is high, and automatic repairing can be achieved.

Description

technical field [0001] The invention relates to the technical field of conductive thin films, in particular to a method for repairing conductive films. Background technique [0002] Due to its high transmittance and good conductivity, transparent conductive films are widely used in touch screens, electromagnetic shielding, photovoltaic devices and other fields. With the development of science and technology, more and more electronic devices are becoming more and more flexible and thin With the development of globalization, the demand for transparent conductive films is increasing. Among them, ITO (Indium tin oxide, indium tin oxide) conductive film and nano-silver wire conductive film are the most widely used transparent conductive films at present. [0003] In order to increase the flexibility of the conductive film and reduce the cost, the UV imprinting method is increasingly used in the manufacture of the transparent conductive film. In the UV imprinting method, the mol...

Claims

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Application Information

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IPC IPC(8): C23C18/40C23C18/28
CPCC23C18/405C23C18/285
Inventor 刘麟跃基亮亮周小红
Owner SUZHOU WEIYEDA TOUCH TECH
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