Unlock instant, AI-driven research and patent intelligence for your innovation.

A preparation method of silicon carbide reinforced aluminum matrix composite material for electronic packaging

A composite material, reinforced aluminum-based technology, applied in metal material coating process, liquid chemical plating, coating and other directions, can solve problems such as overheating, failure, etc., to improve application prospects, dense tissue, and improve wettability. Effect

Inactive Publication Date: 2016-05-18
NANCHANG HANGKONG UNIVERSITY
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a method for preparing a silicon carbide reinforced aluminum matrix composite material for electronic packaging, so as to solve the problem of failure caused by overheating in current electronic packaging products

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
  • A preparation method of silicon carbide reinforced aluminum matrix composite material for electronic packaging
  • A preparation method of silicon carbide reinforced aluminum matrix composite material for electronic packaging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) SiCp particles with a particle size of about 100 μm are selected as raw materials. First, roughen the SiCp particles, pickle the surface of the particles with an aqueous solution of HF acid with a volume fraction of 20%; then carry out sensitization treatment, the formula of the sensitization solution is: stannous chloride 20g / l, 38% concentrated hydrochloric acid The volume fraction is 4%, and the solvent is distilled water. Taking the preparation of 500ml sensitizing solution as an example, add 10g of stannous chloride to 20ml of 37% concentrated hydrochloric acid, then add it into distilled water for dilution, and keep stirring to obtain a clear solution. After the sensitization solution was prepared, the coarsened SiCp particles were added and stirred for 10 min. Then carry out activation treatment, the formula of activation solution is: 5g / l silver nitrate, appropriate amount of ammonia water (adjust solution to clear), solvent is distilled water. Take the pr...

Embodiment 2

[0028](1) SiCp particles with a particle size of about 150 μm are selected as raw materials and pretreated. First, roughen the SiCp particles, pickle the surface of the particles with an aqueous solution of HF acid with a volume fraction of 20%; then perform sensitization treatment, and the formula of the sensitization solution is: stannous chloride 15g / l, 38% concentrated hydrochloric acid The volume fraction is 6%, and the solvent is distilled water. Taking the preparation of 500ml sensitizing solution as an example, add 7.5g of stannous chloride to 30ml of 37% concentrated hydrochloric acid, then add it into distilled water for dilution, and keep stirring to obtain a clear solution. After the sensitization solution was prepared, the coarsened SiCp particles were added and stirred for 12 minutes. Then carry out activation treatment, the formula of activation solution is: 6g / l silver nitrate, appropriate amount of ammonia water (adjust solution to clarification), solvent is ...

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

A method for preparing silicon carbide-reinforced aluminum-based composite materials for electronic packaging. First, the surface of silicon carbide particles (SiCp) is pretreated in five steps of roughening, sensitization, activation, degumming and drying, and then 5-12.5g Copper sulfate / l, 10-20g / l EDTA, 5-15g / l potassium sodium tartrate, formaldehyde with a volume fraction of 1.2-1.5%, and methanol with a volume fraction of 0.7-0.9%, at a pH value of 11- Under the conditions of 12.5 and 35-47 °C, the surface of SiCp was plated with copper, and then the aluminum matrix composite material with a volume fraction of SiCp of 50-55% was prepared by the pressureless infiltration method. The process of the invention is simple, reliable and environmentally friendly, and the prepared SiCp / Al composite material has high specific strength and specific stiffness, good wear resistance, low thermal expansion coefficient, and greatly improved thermal conductivity, which can well solve the problem of electronic packaging materials The problem of electronic components failing due to excessive temperature.

Description

technical field [0001] The invention relates to the preparation of a metal-based composite material, in particular to a method for preparing a silicon carbide-reinforced aluminum-based composite material for electronic packaging, and the method belongs to the technical field of metal materials. Background technique [0002] Silicon carbide reinforced aluminum matrix composite (SiCp / Al) is a kind of ceramic particle reinforced metal matrix composite, which has the excellent properties of both metal and ceramic. The main advantages of SiCp / Al are high specific strength, specific stiffness, wear resistance, low expansion, high thermal conductivity, and it has been widely used in many different fields. Due to its high wear resistance, SiCp / Al composite materials are used in the manufacture of automobile brake discs, brake rotors, engine pistons, etc. in the automotive industry; due to their high specific strength and specific stiffness, they are used in the aerospace field Prod...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/10C22C1/02C22C21/00C23C18/38C25D3/38
Inventor 李多生郜友彬周贤良左敦稳华小珍俞应炜邹爱华叶志国董应虎陈庆军
Owner NANCHANG HANGKONG UNIVERSITY