A method of applying calixarene to process printed circuit boards

A printed circuit board and calixarene technology, which is applied in the field of printed circuit board processing, can solve the problems of waste of metal materials and not being widely used, so as to improve utilization rate, eliminate steric hindrance effect and reduce oxidation reaction Effect

Active Publication Date: 2019-04-02
GUANGDONG CHENGDE ELECTRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the waste of a large amount of metal materials caused by the traditional reduction method and silk screen method, and silver is a precious metal, it has not been widely used in the processing of printed circuit boards.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The method for making printed circuit board of the present invention comprises the steps:

[0049] (1) Preparation of printing solution

[0050] a) under normal temperature and pressure, respectively add calixarene and organic solvent into a container with a stirring device, and continue stirring for 10 minutes to obtain a calixarene solution, and the mass percentage of calixarene in the solution is 2%;

[0051] b) Under normal temperature and pressure, add the liquid silver paste and the calixarene solution obtained in step a into a container with a dispersing device, and continue to disperse for 10 minutes at a speed of 400 rpm, and then discharge to obtain a printing solution. The mass ratio of silver particles to calixarene in the primary printing liquid is 2:1;

[0052] (2) Substrate pretreatment

[0053] c) Drill and clean the substrate according to the circuit requirements, and place the substrate on the screen printing table of the screen printing machine;

...

Embodiment 2

[0062] The method for making printed circuit board of the present invention comprises the steps:

[0063] (1) Preparation of printing solution

[0064] a) under normal temperature and pressure, respectively add calixarene and organic solvent into a container with a stirring device, and continue stirring for 30 minutes to obtain a calixarene solution, and the mass percentage of calixarene in the solution is 20%;

[0065] b) Under normal temperature and pressure, add the liquid silver paste and the calixarene solution obtained in step a into a container with a dispersing device, and continue to disperse for 40 minutes at a speed of 900 rpm, and then discharge to obtain a printing solution. The mass ratio of silver particles to calixarene in the primary printing liquid is 6:1;

[0066] (2) Substrate pretreatment

[0067] c) Drill and clean the substrate according to the circuit requirements, and place the substrate on the screen printing table of the screen printing machine;

...

Embodiment 3

[0076] The method for making printed circuit board of the present invention comprises the steps:

[0077] (1) Preparation of printing solution

[0078] a) under normal temperature and pressure, respectively add calixarene and organic solvent into a container with a stirring device, and continue stirring for 15 minutes to obtain a calixarene solution, and the mass percentage of calixarene in the solution is 6%;

[0079] b) Under normal temperature and pressure, add the liquid silver paste and the calixarene solution obtained in step a into a container with a dispersing device, and continue to disperse for 15 minutes at a speed of 500 rpm, and then discharge to obtain a printing solution. The mass ratio of silver particles to calixarene in the primary printing solution is 3:1;

[0080] (2) Substrate pretreatment

[0081] c) Drill and clean the substrate according to the circuit requirements, and place the substrate on the screen printing table of the screen printing machine; ...

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PUM

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Abstract

The invention discloses a method for processing a printed circuit board by applying calixarene. The method comprises the following steps that a) calixarene and an organic solvent are added to a container equipped with a stirring device under the normal temperature and the normal pressure and continuously stirred so as to obtain a calixarene solution; b) liquid silver paste and the calixarene soluation are added to a container equipped with a dispersing device under the normal temperature and the normal pressure and continuously dispersed and then discharged so as to obtain primary printing liquid; c) drilling and cleaning and other processing are performed on a substrate according to the line requirements and the substrate is arranged on a screen printing machine; d) printing liquid is added to the screen printing machine, and the primary printing liquid is coated on the substrate; and e) the substrate is arranged in a baking oven to be baked and then naturally cooled to the normal temperature and then the printed circuit board manufactured by applying calixarene can be obtained. The method for processing the printed circuit board by applying calixarene is high in environmental protection performance and can enhance the adhesive force of silver particles on the substrate so as to effectively reduce the processing cost of the printed circuit board.

Description

technical field [0001] The invention relates to the field of processing printed circuit boards, in particular to a method for processing printed circuit boards with calixarene, which has good environmental performance and excellent quality stability. Background technique [0002] With the continuous development of the economy, printed circuit boards are increasingly widely used in household appliances, industrial electronics and other industries. Because the printed circuit board has the advantages of greatly reducing the processing cost of electronic products, strong industrial reproducibility, high degree of automation and high production efficiency, it is favored by the majority of electrical and electronic industry manufacturers. However, there are two major technical deficiencies in the existing printed circuit board production process. First, traditional printed circuit boards are usually processed by a reduction method, which is mainly composed of cleaning, laminatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/12
CPCH05K3/1233H05K3/1283H05K2203/1476
Inventor 吴子坚刘镇权陈世荣程静邬通芳
Owner GUANGDONG CHENGDE ELECTRONICS TECH CO LTD
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