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Tin-containing alloy electroplating bath and electrolytic plating method using the electroplating bath

A technology of electrolytic electroplating and electroplating bath, which is applied in the field of tin-containing alloy electroplating bath and electrolytic electroplating using the electroplating bath, which can solve problems such as complex process and achieve the effects of inhibiting whisker generation, excellent oxidation resistance, and inhibiting discoloration

Active Publication Date: 2017-01-18
DAIWA FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with the case of using tin-lead alloy plating, the process of these methods is complicated

Method used

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  • Tin-containing alloy electroplating bath and electrolytic plating method using the electroplating bath
  • Tin-containing alloy electroplating bath and electrolytic plating method using the electroplating bath
  • Tin-containing alloy electroplating bath and electrolytic plating method using the electroplating bath

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Prepare a plating bath containing the following ingredients at the concentrations shown in Table 1. The prepared electroplating bath exhibited strong acidity.

[0071] Table 1

[0072] (Form 1)

[0073]

[0074] In the above electroplating bath, electrolytic plating is performed on the iron-based base material and the copper-based base material. Immerse the substrate in an electroplating bath at 25-30°C, use the substrate as a cathode, and make the current density 0.5-5.0A / dm 2 The electric current flowed for 1 to 2 minutes, and a coating film with a film thickness of 2.0 μm was obtained. Based on the total mass of the coating film, the content of gadolinium in the obtained coating film was 0.10% by mass.

[0075] Tests were conducted regarding the heat resistance, contact resistance value, Vickers hardness and salt water durability of the obtained plating films. The results are shown in Table 5.

Embodiment 2

[0077] Prepare a plating bath containing the following ingredients at the concentrations shown in Table 2. The prepared electroplating bath exhibited strong acidity.

[0078] Table 2

[0079] (Form 2)

[0080] tin oxide 35g / L Isopropanolsulfonic acid 120g / L Diethanolamine 50g / L gloss agent 5g / L L-Ascorbic Acid 1g / L Gadolinium oxide 0.6g / L

[0081] In the above electroplating bath, electrolytic plating is performed on the iron-based base material and the copper-based base material. Immerse the substrate in an electroplating bath at 25-30°C, use the substrate as a cathode, and make the current density 0.5-5.0A / dm 2 The electric current flowed for 1 to 2 minutes, and a coating film with a film thickness of 2.0 μm was obtained. Based on the total mass of the coating film, the content of gadolinium in the obtained coating film was 0.30% by mass.

[0082] Tests were conducted regarding the heat resistance, contact resistance val...

Embodiment 3

[0084] Prepare a plating bath containing the following ingredients at the concentrations shown in Table 3. The prepared electroplating bath exhibited strong acidity.

[0085] table 3

[0086] (Form 3)

[0087] tin oxide 35g / L Isopropanolsulfonic acid 120g / L Diethanolamine 50g / L gloss agent 5g / L L-Ascorbic Acid 1g / L Gadolinium oxide 9.5g / L

[0088] In the above electroplating bath, electrolytic plating is performed on the iron-based base material and the copper-based base material. Immerse the substrate in an electroplating bath at 25-30°C, use the substrate as a cathode, and make the current density 0.5-5.0A / dm 2 The electric current flowed for 1 to 2 minutes, and a coating film with a film thickness of 2.0 μm was obtained. Based on the total mass of the coating film, the content of gadolinium in the obtained coating film was 8.00% by mass.

[0089] Tests were conducted regarding the heat resistance, contact resistance val...

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Abstract

The invention provides a tin alloy electroplating bath capable of supplying tin alloy electroplating products which are suitable for electrical and electronic components and are excellent in oxidative resistance, and an electrolytic plating method using the electroplating bath. Particularly, through the electroplating bath and the electrolytic plating method using the electroplating bath, the tin alloy electroplating products which are excellent in oxidative resistance can be provided; and the electroplating bath is used for settling tin alloy on the surface of a substrate. The electroplating bath comprises (a) a tin compound, which contains 99.9wt%-46wt% of tin on the basis of the mass of all metals in the electroplating bath; (b) a gadolinium compound, which contains 0.1wt%-54wt% of gadolinium on the basis of the mass of all metals in the electroplating bath; (c) at least one complexing agent; and (d) a solvent.

Description

[0001] related application [0002] This application is a Chinese invention patent application with the application number 200980160631.7, the application date is July 31, 2009, and the invention title is "Tin-containing alloy electroplating bath, electrolytic electroplating method using the electroplating bath, and substrate deposited with the electrolytic coating" divisional application. technical field [0003] The present invention relates to a tin-containing alloy plating bath capable of supplying tin-containing alloy-plated articles suitable for electric and electronic parts, and an electrolytic plating method using the same. Background technique [0004] Generally, in various electronic devices such as automobiles, home appliances, and OA machines, copper alloys are used as base materials for electronic and electrical components such as connectors and terminals, in order to improve the functions of copper alloys, such as preventing rust and improving corrosion resista...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/60
CPCC25D3/56C25D3/60
Inventor 出分伸二松浦辉出分谦治
Owner DAIWA FINE CHEM
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