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

Nickel colloid catalyst solution for electroless nickel or nickel alloy plating, and electroless nickel or nickel alloy plating method

A technology of electroless nickel plating and nickel alloy, applied in liquid chemical plating, metal material coating process, coating and other directions, can solve problems such as chemical plating not mentioned

Active Publication Date: 2017-02-22
ISHIHARA CHEM
View PDF10 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] However, the chemical coating is not mentioned in the examples

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nickel colloid catalyst solution for electroless nickel or nickel alloy plating, and electroless nickel or nickel alloy plating method
  • Nickel colloid catalyst solution for electroless nickel or nickel alloy plating, and electroless nickel or nickel alloy plating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 13

[0130] Examples 13 to 14 are based on Example 9, Example 13 is an example of changing the type of nickel salt, and Example 14 is an example of using a borohydride compound and hypophosphorous acid as a reducing agent.

[0131] In addition, as mentioned above, Examples 21 to 22 are examples of the electroless nickel-cobalt alloy plating method. Among them, in Example 21, after the pretreatment process of decontamination and neutralization, the adsorption promotion→catalyst application→chemical Each process of the coating film, the pretreatment process, the adsorption promotion process, and the catalyst application process are based on the above-mentioned Example 1. Embodiment 22 is based on the above-mentioned embodiment 21, and is an example in which the nickel colloid catalyst solution is changed from embodiment 1 to the catalyst solution of embodiment 18.

[0132]On the other hand, among the following Comparative Examples 1 to 3, Comparative Example 1 is a blank example in w...

Embodiment 1

[0134] The electroless nickel plating method of the present invention is characterized in that the steps of adsorption promotion→catalyst application→electroless plating are sequentially carried out, and this Example 1 is an example of further performing the pretreatment steps of decontamination and neutralization before the adsorption promotion step.

[0135] That is, after pretreatment under the following condition (p), adsorption promotion is performed under condition (a), catalyst application is performed under condition (b), and then electroless nickel-phosphorus plating is performed under condition (c).

[0136] (p) Pretreatment process

[0137] First, on a double-sided copper-clad glass-epoxy resin substrate (FR-4 manufactured by Panasonic Electric Works Co., Ltd., thickness: 1.0 mm), remove 35 μm of copper foil by dissolving and desmearing / neutralizing substrate as the sample substrate.

[0138] The compositions of the desmutting treatment liquid and the neutralizatio...

Embodiment 2

[0175] Based on above-mentioned embodiment 1, prepare nickel colloidal catalyst liquid according to following composition, except that, the preparation method of nickel colloidal catalyst liquid and electroless nickel plating liquid and the processing condition of each operation are set to be identical with embodiment 1.

[0176] (b) Preparation of nickel colloidal catalyst solution

[0177] [nickel solution]

[0178] Nickel sulfate (as Ni 2+ 0.1 mol / L): 0.1 mol / L

[0179] Citric acid: 0.15 mol / L

[0180] [reducing agent solution]

[0181] Sodium borohydride: 0.2 mol / L

[0182] [Preparation conditions of nickel colloidal catalyst solution]

[0183] Same as Example 1.

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

After performing a preliminary adsorption promoting treatment by immersing a non-conductive substrate in a solution containing a surfactant, the non-conductive substrate is provided with a catalyst by means of a nickel colloid catalyst solution for electroless nickel plating, said nickel colloid catalyst solution containing (A) a soluble copper salt, (B) a reducing agent and (C) a colloid stabilizer, and electroless nickel plating is subsequently carried out. Since a catalyst is provided by means of a catalyst solution having excellent long-term stability after enhancing the catalytic activity by a preliminary treatment for promoting adsorption and the electroless plating is subsequently carried out, it becomes possible to obtain a uniform nickel coating film that is free from deposition unevenness. In cases where the present invention is applied to a nickel alloy plating method instead of the above-described nickel plating method, a nickel alloy coating film having excellent uniformity is able to be obtained.

Description

technical field [0001] The present invention relates to a nickel colloid catalyst solution used as a catalyst for pretreatment when performing electroless nickel or nickel alloy plating on a non-conductive substrate, and an electroless nickel or nickel alloy plating method using the catalyst solution, providing a nickel colloid catalyst A nickel colloid catalyst solution for electroless nickel or nickel alloy plating and an electroless nickel or nickel alloy plating method that have excellent stability over time of the solution and can form a nickel or nickel alloy film with a uniform and non-stained appearance. Background technique [0002] In order to represent resin substrates such as glass-epoxy resin, glass-polyimide resin, epoxy resin, polyimide resin, polycarbonate resin, ABS resin, PET resin, etc., including glass substrates, ceramic substrates, etc. Electroless nickel or nickel alloy plating is carried out on the non-conductive substrate inside. The conventional met...

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): C23C18/30C23C18/32
CPCC23C18/30C23C18/32C23C18/1639C23C18/34C23C18/36C23C18/50
Inventor 内田卫田中薰川端爱
Owner ISHIHARA CHEM
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