Etching medicinal liquid and surface roughening treatment method of aluminum substrate

Abstract

The invention discloses etching medicinal liquid which comprises the following raw materials in parts by weight: 10-20 parts of organic acid and 70-90 parts of deionized water. The etching medicine liquid is used for etching an aluminum substrate, the aluminum substrate is good in roughening effect, oil can be removed at the same time, and the oil removal process is simplified; and the etching medicine liquid can be removed only by heating, has no toxic or harmful effect on the periphery in a high-temperature state, and is good in environmental protection. According to a roughening treatment method of the aluminum substrate, the etching medicine liquid is used for etching and roughening, the process is simple, the roughening effect is good, the excessive etching medicine liquid can be volatilized and removed by heating, the removal process is simple, and an alkaline washing neutralization process is not needed.

Description

technical field [0001] The invention belongs to the field of aluminum substrate manufacturing, and in particular relates to an etching solution and a surface roughening treatment method for an aluminum substrate. Background technique [0002] Aluminum-based copper clad laminates, commonly known as aluminum substrates, have excellent electrical properties, heat dissipation, electromagnetic shielding, high withstand voltage, and bending processing. They are mainly used in high-power LED lighting, power supplies, TV backlights, automobiles, computers, and air conditioners. Modules, avionics, communications, medical, audio and other related industries. [0003] Modern electronic products are increasingly developing in the direction of miniaturization, high integration, and high performance. The power density of printed circuit boards is also increasing, and the heat dissipation of circuit boards has become a major problem. In the industry, the aluminum substrate is laminated wi...

AI Technical Summary

Problems solved by technology

For grinding plate, wire drawing, and anodizing treatment methods, the surface roughness of the treated aluminum substrate is poor in consistency, and the roughening effect is not ideal, while the cost of nano-processing is high, and the process is complicated and the production cycle is long; acid etching potion is used , the etching is difficult to control, the roughening effect is not ideal, and alkaline washing is required to remove excess acidic components, and the process is complex

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