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Ink jet printing method for preparing metal film

A metal thin film, inkjet printing technology, applied in the direction of copying/marking method, printing, ink, etc., to achieve the effect of uniform distribution, high graphic precision and short cycle

Inactive Publication Date: 2005-05-04
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of inkjet printing technology to prepare metal thin films has not been reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Preparation of gold wire

[0016] Operate as follows: 1) take 1g of compound AuCl that can be heated and decomposed to generate metal gold Au 3 As raw material, it is dissolved in 50ml deionized water, the weight ratio of said raw material and deionized water is 2: 100; 2) add sodium lauryl sulfate 0.1g, the addition is 0.2% of deionized water weight, To control the viscosity of the ink to 50mPa s (room temperature), the surface tension to 30mNm -1 Prepare gold ink; 3) inject the ink into the ink cartridge, and deposit it on the substrate according to a predetermined pattern using conventional inkjet printing technology; 4) heat-treat the film layer deposited on the substrate at 250°C to form A thin film of gold with a predetermined pattern.

Embodiment 2

[0018] Preparation of silver wire

[0019] Operate as follows: 1) get 2g of the compound AgNO that can be heated and decomposed to generate metal Ag 3 As raw material, it is dissolved in 50ml organic solvent dehydrated alcohol, and the weight ratio of described raw material and organic solvent is 4: 100; 2) add cetyltrimethylammonium bromide 0.1g, the addition amount is organic solvent 0.2% of the weight to control the viscosity of the ink to be 40mPa·s (room temperature) and the surface tension to be 40mNm -1 Formulated as silver ink; 3) inject the ink into the ink cartridge, and deposit it on the substrate according to a predetermined pattern using conventional inkjet printing technology; 4) heat-treat the film layer deposited on the substrate at 500°C, and react to form A thin film of silver with a predetermined pattern.

Embodiment 3

[0021] Preparation of copper wires by inkjet printing-assisted electroless plating process:

[0022] Operate as follows: 1) take 1g of compound AuCl which can be heated and decomposed to generate metal 3 As a raw material, it is dissolved in 50ml deionized water, and the weight ratio of the raw material to water or organic solvent is 2: 100; 2) Add 0.2g of nonionic surfactant dodecyldiethanolamine, and the amount of addition is water Or 0.4% of the weight of the organic solvent to control the viscosity of the ink to be 30mPa·s (room temperature) and the surface tension to be 30mNm -1 Prepare gold ink; 3) inject the ink into the ink cartridge, and deposit it on the substrate according to a predetermined pattern using conventional inkjet printing technology; 4) heat-treat the film layer deposited on the substrate at 250°C to form gold film.

[0023] The substrate is put into a conventional electroless copper plating solution, and copper is deposited on the surface of the gold ...

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Abstract

The method for preparing metal film by using ink-jet printing process includes the following steps: 1. using the compound which can be heated and decomposed into metal as raw material and dissolving it in solvent, the weight ration of the described raw material and solvent in 1-20:100; 2. adding additive to regulate the properties of viscosity, surface tension and drying speed, its added quantityis 0.1-5% of weight of solvent, the controlled solution viscosity is 20-60 mPa.s, surface tension is 20-50 mNm(-1), and preparing ink-jet ink; 3. injecting the above-mentioned ink into ink box, adopting conventional ink-jet printing process to make the ink deposit on the substrate according to the predefined pattern; 4. heating film layer deposited on the substrate at 200-600 deg.C to form metal film.

Description

technical field [0001] The invention relates to a metal thin film preparation technology, in particular to a method for preparing a metal thin film by inkjet printing. Background technique [0002] Metal thin films are widely used, especially in the field of microelectronics, metal thin films with certain graphics and physical and chemical properties constitute the basis of almost all microelectronic devices. The metal film is not only used to connect wires and contacts, but also can be used to complete various functions such as sensing, catalysis, and electromagnetic shielding. The current conventional metal thin film preparation process generally requires processes such as coating and etching, and the preparation process is complicated and the cost is high. [0003] Inkjet printing technology is one of the main technologies commonly used in modern office printing. According to the inkjet method, it is divided into two types: continuous type and random type. Continuous in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/005B41M5/00C09D11/30C09D11/52
Inventor 赵岩郝传勇
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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