Product

SE-400Y

Applicable Processes: Pre-treatment before lamination, pre-treatment before solder resist application, post-laser hole cleaning, and pre- and post-treatment for black holes/shadows.

Product Description

SE-400Y is a high-end single-agent micro-etching solution from Wechsler. It successfully replaces traditional products containing cyclohexylamine and p-hydroxybenzoic acid. This product belongs to the sulfuric acid/hydrogen peroxide system, contains no aromatic hydrocarbons, and has extremely low COD (Chemical Oxygen Demand) and ammonia nitrogen levels, greatly simplifying wastewater treatment processes. It can be directly diluted with pure water, and the micro-etching capacity of newly opened tank solutions is comparable to that of old tank solutions, allowing direct integration with existing production lines.

Core Advantages

• Environmental Compliance: Contains no aromatic hydrocarbons, simplifying wastewater treatment and meeting the stringent environmental emission standards of modern factories.

• Improved Quality: Effectively improves the shrinkage phenomenon of adhesive residue within holes and addresses issues such as undercut, enhancing board surface quality.

• Stable Performance: Stable and controllable micro-etching capacity, high copper dissolution, and long tank life.

• Excellent appearance: The copper surface is micro-etched evenly and retains its luster, avoiding the problem of the copper surface becoming dull due to traditional chemical etching, and reducing complaints about poor appearance.