Photo-curing ink-jet resist for printing circuit board and preparation method thereof

A printed circuit board and resist technology, which is applied in the field of light-curing inkjet resist and its preparation, can solve the problems of unfavorable PCB board resolution, slow photo-curing speed of etching-resistant ink, etc., and achieves good etching resistance, The effect of good alkali solubility and simple production process

Inactive Publication Date: 2010-02-10
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the light curing speed of this anti-etching ink is slow, which is not conducive to improving the resolution of the PCB board

Method used

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  • Photo-curing ink-jet resist for printing circuit board and preparation method thereof
  • Photo-curing ink-jet resist for printing circuit board and preparation method thereof
  • Photo-curing ink-jet resist for printing circuit board and preparation method thereof

Examples

Experimental program
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Embodiment 1～10

[0038] See Table 1 for the mass percentage of each component of the new photocurable inkjet resist prepared for printed circuit board (PCB). First, mix carboxyl-containing acrylate oligomers, acrylate low-viscosity resins, acrylate active monomers, and vinyl ether active monomers evenly, then add a photoinitiator under yellow light conditions, and heat up to 50 ℃ to fully dissolve the photoinitiator, then lower it to room temperature and add the dye in proportion, use a stirring, sand milling, and dispersing multipurpose machine to stir for 2 hours until the mixture is uniform, add leveling agent, wetting and dispersing agent, polymerization inhibitor, defoaming agent The agent is mixed evenly and obtained by filtration.

[0039] Use an inkjet printer to spray on the surface of the substrate, and then perform photocuring to obtain an experimental sample.

[0040] Table 1 The components and dosage (mass percentage concentration) of the new photocurable inkjet resist for PCB bo...

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Abstract

The invention relates to light-cured ink-jet resist for a print circuit board and a preparation method thereof. By adopting the solidification way of mixing acrylic oligomer containing carboxyl, acrylic low viscosity resin as well as free radical and cation, the resist has good film detachment, short solidification time and high resolving capability; the technology of ink-jet can be adopted to spray the ink-jet resist on the special area of a copper-clad plate and an anti-etching image can be formed after light-curing. The manufactured solidified film has high hardness and good flexibility aswell as good anti-etching property.

Description

Technical field: [0001] The invention relates to a photocurable inkjet resist for printed circuit boards and a preparation method thereof. Background technique: [0002] Photoresist, also known as photoresist, is mainly used in the microfabrication process of integrated circuits and semiconductor discrete devices in the electronics industry. The first photoresist used by humans in the electronics industry was the polyvinyl alcohol cinnamate and its derivatives photoresist system synthesized by Eastman-Kodak Company in 1954. In 1958, the same company developed cyclized rubber—biazide photoresist, which made the industrialization of integrated circuit production a reality. [0003] The traditional manufacturing process of printed circuit board (PCB) includes substrate processing, gluing, pre-baking, exposure, middle-baking, developing, post-baking, and degumming. In the production process, multiple or even dozens of photolithography operations are often required, and the abo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/027G03F7/028G03F7/004
Inventor 魏杰王玥
Owner BEIJING UNIV OF CHEM TECH
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