Nickel plating solution composition, brightener and preparing method of brightener
A technology of brightener and nickel plating solution, which is applied in the direction of liquid chemical plating, coating, metal material coating technology, etc. Issues such as corrosion and hardness
Active Publication Date: 2020-06-05
SHANGHAI SINYANG SEMICON MATERIALS
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- Summary
- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0005] The technical problem to be solved in the present invention is to overcome the disadvantages that the additives in the traditional electroless nickel plating solution are not friendly to the environment and personal health, and the environment-friendly additives cannot reach the ideal brightness level, gloss, corrosion resistance and hardness. , and provide a brightener, a nickel plating solution composition and a preparation method thereof
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0068] Add petroleum ether 10ml in the reactor, heat to 65 ℃, then add the compound shown in formula I in the reactor (n is 3, R 1a , R 1b , R 1c , R 1e , R 1d , R 1f and R 1g Cyclopentyl) 2.04g (2.1mmol), and heated to dissolve; add suitable petroleum ether 10ml in another container, heat to 85 ° C, and then add an appropriate amount of diphenylmethane diisocyanate 0.25g ( 1 mmol). Finally, add the petroleum ether solution dissolved in isocyanate into the reactor dissolved in the compound shown in formula I, fully stir the reaction for 20 minutes, filter, wash, and dry to obtain brightener D1.
Embodiment 2
[0070] Repeat the method of Example 1 according to the solvent and raw materials in Table 1 to obtain brightener D2.
Embodiment 3
[0072] Repeat the method of Example 1 according to the solvent and raw materials in Table 1 to obtain brightener D3.
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Abstract
The invention discloses a nickel plating solution composition, a brightener and a preparing method of the brightener. The nickel plating solution composition comprises following components including 2-10 g / L of nickel salt, 10-45 g / L of a reducing agent, 20-60 g / L of a complexing agent, 0.5-8 mg / L of the brightener and water, wherein the brightener is a urea compound generated through the reactionof amidogen and isocyanate, the pH of the nickel plating solution composition is 4-6, and the mass volume content of various components refers to the mass volume content before adjustment of the pH of the nickel plating solution composition into 4-6. The nickel plating solution composition has excellent stability, and a clad layer formed by the nickel plating solution composition during nickel plating has excellent uniform brightness, glossiness, corrosion resistance and surface microhardness.
Description
technical field [0001] The invention relates to a nickel plating solution composition, a brightener and a preparation method thereof. Background technique [0002] Electroless nickel plating is a new surface treatment technology. It uses oxidation-reduction reaction to deposit a uniform, dense, smooth and smooth alloy coating on the surface of metal materials, and the coating has excellent corrosion resistance and wear resistance. Therefore, It is widely used in industry, such as electronic components, auto parts and other fields. For example, when bumps are formed on electrodes on a semiconductor wafer to be bonded to other semiconductor chips, a bottom barrier metal layer made of nickel or the like is formed on the semiconductor wafer using an electroless plating process before the bumps are formed. In the process of forming the bottom barrier metal layer, the electroless nickel film needs to have good uniformity and appearance. In the electroless nickel plating process,...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C23C18/34C08G18/61C08G18/71C08G18/76
CPCC23C18/34C08G18/61C08G18/7671C08G18/715C08G18/7657
Inventor 王溯孙红旗
Owner SHANGHAI SINYANG SEMICON MATERIALS