Environment-friendly roughening treatment liquid suitable for copper surface and application of environment-friendly roughening treatment liquid

• Main Authors: FENG CHUNGUANG, HUANG ZHIQI, HAO YI, PENG HAIOU
• Format: Patent
• Language: Chinese; English
• Published: 21.10.2022
• Subjects: CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; PRINTED CIRCUITS

The invention discloses environment-friendly roughening treatment liquid suitable for a copper surface and application of the environment-friendly roughening treatment liquid, and relates to the field of printed circuit board production and processing. The roughening treatment fluid comprises the following components in mass concentration: 5-65 g/L of hydrogen peroxide, 20-100 g/L of sulfuric acid, 1-10 g/L of a hydrogen peroxide stabilizer, 1-10 g/L of a surfactant, 15-60 g/L of a copper ion complexing agent, 0.2-1 g/L of a corrosion inhibitor and the balance of deionized water. According to the environment-friendly roughening treatment fluid suitable for the copper surface, different types of hydrogen peroxide stabilizers are adopted for compounding, and hydrogen peroxide can be kept stable and not cracked; the cationic surface active agent and the nonionic surface active agent are compounded, so that the biodegradable performance is improved. After the surface of the copper foil is treated, the coarsening