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Ink-jet printing based conductive circuit printing process

A conductive circuit and inkjet printing technology, which is applied in printed circuit, printed circuit manufacturing, conductive pattern formation, etc., can solve the problems of narrow selection of printing substrates, poor conductivity of printed circuits, poor connection between conductive layer and substrate, etc. Achieve excellent mechanical properties, good insulation, and improved bonding force

Inactive Publication Date: 2017-09-08
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention overcomes the defects of poor electrical conductivity of the printed circuit, poor connection between the conductive layer and the substrate, and narrow selection of the printed substrate existing in the existing process of directly printing and curing the conductive circuit with the conductive ink

Method used

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  • Ink-jet printing based conductive circuit printing process
  • Ink-jet printing based conductive circuit printing process
  • Ink-jet printing based conductive circuit printing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A conductive circuit printing process based on inkjet printing, comprising the following steps:

[0033] (1) Substrate pretreatment: Treat the polyethylene terephthalate substrate with air plasma under the condition of air atmosphere and voltage of 50V for 10min, and then place the polyethylene terephthalate base at room temperature Put the material into the ethanol solution of 1wt% silane coupling agent and soak for 2 hours, rinse the polyethylene terephthalate base material with ethanol and dry it for later use;

[0034] (2) Ink preparation: use deionized water and ethanol with a volume ratio of 10:1 as solvents to prepare Pd(NO 3 ) 2 ink;

[0035] (3) Printing: Pd(NO) prepared in step (2) 3 ) 2 The ink is injected into the ink cartridge of the ME-10 type common inkjet printer, and the conductive circuit is printed on the base material processed through step (1), and it is naturally dried at room temperature after the printing is completed;

[0036] (4) Conductiv...

Embodiment 2

[0038] A conductive circuit printing process based on inkjet printing, comprising the following steps:

[0039] (1) Substrate pretreatment: Treat the acrylonitrile-butadiene-styrene plastic substrate with air plasma under the condition of air atmosphere and voltage of 200V for 8min, and then treat the acrylonitrile-butadiene-styrene plastic substrate at room temperature Put the plastic substrate into the ethanol solution of 10wt% silane coupling agent and soak for 24 hours, rinse the acrylonitrile-butadiene-styrene plastic substrate with ethanol and dry it for later use;

[0040] (2) Ink preparation: use deionized water and ethanol with a volume ratio of 2:1 as solvents to prepare AgNO with a concentration of 60mmol / L 3 ink;

[0041] (3) Printing: the AgNO prepared in step (2) 3 The ink is injected into the ink cartridge of the ME-10 type common inkjet printer, and the conductive circuit is printed on the base material processed through step (1), and it is naturally dried at r...

Embodiment 3

[0044] A conductive circuit printing process based on inkjet printing, comprising the following steps:

[0045] (1) Substrate pretreatment: treat the polyimide substrate with air plasma for 8 minutes under the condition of air atmosphere and voltage of 150V, then put the polyimide substrate into a concentration of 3wt% silane disulfide at room temperature Soak in the ethanol solution of the joint agent for 12h, rinse the polyimide substrate with ethanol and dry it for later use;

[0046] (2) Ink preparation: use deionized water and ethanol with a volume ratio of 1:10 as solvents to prepare AgNO with a concentration of 30mmol / L 3 ink;

[0047] (3) Printing: the AgNO prepared in step (2) 3 The ink is injected into the ink cartridge of the ME-10 type common inkjet printer, and the conductive circuit is printed on the base material processed through step (1), and it is naturally dried at room temperature after the printing is completed;

[0048] (4) Conductive pattern forming: ...

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Abstract

The invention discloses an ink-jet printing based conductive circuit printing process. The process comprises the following specific steps: (1) base material preprocessing, (2) ink preparation, (3) printing and (4) conductive pattern forming. In the step of base material preprocessing, the surface of a base material is processed by successively utilizing air plasmas and a silane coupling agent solution; in the step of ink preparation, catalyst salt is dissolved in a solvent so as to prepare catalytic ink; in the step of printing, the catalytic ink prepared in the step (2) is printed on the base material processed through the step (1) by an ink-jet printer; and in the step of conductive pattern forming, chemical copper plating is performed on the base material printed with the catalytic ink so as to prepare a clear conductive pattern. The process disclosed by the invention overcomes defects of poor conductivity of a printed circuit, poor connectivity between a conductive layer and a base material and narrow selection of the printing base material of an existing process in which a conductive circuit is printed by directly using conductive ink and solidified.

Description

technical field [0001] The invention relates to the technical field of printed electronics, in particular to a printing process for ink-jet printing catalytic ink containing a catalyst precursor on a pretreated organic carrier, and electroless copper plating to prepare clear electronic graphics. Background technique [0002] Conventional methods for forming conductive lines mainly include etching, screen printing, vacuum deposition, spin coating, etc. Although the above methods have been widely used, there are still problems such as complicated process, long processing time, waste of raw materials, and production. low rate and high cost. Moreover, as electronic devices become more and more miniaturized and multifunctional, the conductive lines of the printed circuit board also need to be extremely small and precise. [0003] Printed electronics technology using inkjet printing as a printing method has received extensive attention in recent years. Inkjet printing uses conduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/12H05K3/24
CPCH05K3/125H05K3/241H05K2203/095
Inventor 刘禹尹丛彬张婕姜晶陆云龙邓永强陈彦秋高维廉
Owner JIANGNAN UNIV
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