Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Composite type colloidal palladium composition and preparation method thereof

A technology of colloidal palladium and composition, which is applied in the field of composite colloidal palladium composition and its preparation, can solve problems such as unsatisfactory adhesion, and achieve the effect of improving adhesion and lifting

Inactive Publication Date: 2018-12-07
GUANGDONG LEAR ELECTROCHEM LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a composite colloidal palladium composition and a preparation method thereof in order to overcome the technical deficiency that the adhesion of the existing activation solution colloidal particles on the surface of the substrate is not ideal enough. The colloidal palladium composition can be used as an activation solution to improve the adhesion between the colloidal particles and the surface of the substrate, which is conducive to improving the bonding force between the substrate and the plating layer after electroless copper deposition

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 Preparation of composite colloidal palladium composition

[0028] Raw material composition: deionized water, palladium chloride, cobalt chloride, alkaline silica sol (purchased from Huihe WELL brand S-830 alkaline silica sol), hydrazine and surfactant OP-10; among them, 1L Deionized water contains 15g palladium chloride, 8g cobalt chloride, 80g silica sol, 60g hydrazine, and 2g surfactant OP-10.

[0029] Preparation:

[0030] S21. Dissolve palladium chloride and cobalt chloride in deionized water, then add surfactant OP-10 and stir to dissolve to obtain solution 1;

[0031] S22. Stir the solution 1, and add alkaline silica sol (purchased from Huihe WELL brand S-830 alkaline silica sol) while stirring, alkaline silica sol (purchased from Huihe WELL brand S-830) 830 alkaline silica sol) after adding, continue stirring for 40min to obtain solution 2;

[0032] S23. Stir the solution 2, and add hydrazine while stirring. After the hydrazine is added, continue ...

Embodiment 2

[0033] Embodiment 2 Preparation of composite colloidal palladium composition

[0034] Raw material composition: deionized water, palladium chloride, cobalt chloride, alkaline silica sol (purchased from Huihe WELL brand S-830 alkaline silica sol), hydrazine and surfactant OP-10; among them, 1L Deionized water contains 10g palladium chloride, 10g cobalt chloride, 60g silica sol, 40g hydrazine, and 1g surfactant OP-10.

[0035] Preparation:

[0036] S21. Dissolve palladium chloride and cobalt chloride in deionized water, then add surfactant OP-10 and stir to dissolve to obtain solution 1;

[0037] S22. Stir the solution 1, and add alkaline silica sol (purchased from Huihe WELL brand S-830 alkaline silica sol) while stirring, alkaline silica sol (purchased from Huihe WELL brand S-830) 830 alkaline silica sol) after adding, continue stirring for 40min to obtain solution 2;

[0038] S23. Stir the solution 2, and add hydrazine while stirring. After the hydrazine is added, continue...

Embodiment 3

[0039] Embodiment 3 Preparation of composite colloidal palladium composition

[0040] Raw material composition: deionized water, palladium chloride, cobalt chloride, alkaline silica sol (purchased from Huihe WELL brand S-830 alkaline silica sol), hydrazine and surfactant OP-10; among them, 1L Deionized water contains 20g palladium chloride, 5g cobalt chloride, 100g silica sol, 100g hydrazine, and 5g surfactant OP-10.

[0041] Preparation:

[0042] S21. Dissolve palladium chloride and cobalt chloride in deionized water, then add surfactant OP-10 and stir to dissolve to obtain solution 1;

[0043] S22. Stir the solution 1, and add alkaline silica sol (purchased from Huihe WELL brand S-830 alkaline silica sol) while stirring, alkaline silica sol (purchased from Huihe WELL brand S-830) 830 alkaline silica sol) after adding, continue stirring for 40min to obtain solution 2;

[0044] S23. Stir the solution 2, and add hydrazine while stirring. After the hydrazine is added, continu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of colloidal chemistry, in particular to a composite type colloidal palladium composition and a preparation method thereof. The composite colloidal palladium composition comprises the following raw material components of deionized water, palladium chloride, cobalt chloride, silica sol, hydrazine and a surfactant, wherein 1 L of the deionized water contains 10-20 g of the palladium chloride, 5-10 g of the cobalt chloride, 60-100 g of the silica sol, 40-100 g of the hydrazine and 1-5 g of the surfactant. The composition uses the palladium chloride andthe cobalt chloride as raw materials, then the silica sol is added, then the composite colloidal palladium composition containing colloidal metal palladium and metal cobalt particles is obtained through reduction by the method, the composite type colloidal palladium composition is used as an activating solution for electroless copper precipitation so that the adhesion capability of the colloidalparticles and the surface of a base material can be improved, and then the binding force between the base material and a coating layer is improved after the chemical copper deposition is facilitated.

Description

technical field [0001] The invention relates to the technical field of colloid chemistry, in particular to a composite colloidal palladium composition and a preparation method thereof. Background technique [0002] Electroless copper plating is a process in circuit board manufacturing, usually also called copper sinking or porosity (PTH), which is an autocatalytic redox reaction. First, it is treated with an activation solution (usually an activation solution containing colloidal palladium), so that a layer of active particles is adsorbed on the surface of the insulating substrate, usually metal palladium particles, and copper ions are firstly absorbed on these active metal palladium particles. Reduction, and these reduced metal copper crystal nuclei themselves become the catalytic layer of copper ions, so that the reduction reaction of copper continues on the surface of these new copper crystal nuclei. [0003] Although the existing activation solution can meet the require...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C23C18/18C23C18/38
CPCC23C18/1879C23C18/38
Inventor 曾令习王群陈广
Owner GUANGDONG LEAR ELECTROCHEM LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com