Cleaning agent for surface treatment on flexible circuit board

Abstract

The invention discloses a cleaning agent for surface treatment on a flexible circuit board. The cleaning agent is prepared from the following components of, in percentage by mass, 2.5-8% of aliphaticdibasic acid, 5-12% of triethanolamine, 0.2-5% of ethylene glycol butyl ether, 0.2-5% of 1,2-propylene glycol, 2-8% of a polymer of epoxypropane and oxirane, 2-8% of a polymer of isomeric alkyl epoxypropane and oxirane, 2-8% of 2-phenoxyethanol and 60-68.8% of pure water. The product obtained from the invention is low in cost, good in cleaning effect and high in cleaning capability.

Description

technical field [0001] The invention relates to the technical field of printed circuit boards, in particular to a cleaning agent for surface treatment of flexible circuit boards of printed circuit board HDI products. Background technique [0002] Flexible circuit board, also known as "soft board," is a printed circuit made of flexible insulating substrates, commonly known as FPC in the industry, and is made of flexible insulating substrates (mainly polyimide or polyester film) Printed circuit boards have many advantages that rigid printed circuit boards do not have. Flexible circuits provide excellent electrical performance, can meet the design needs of smaller and higher density mounting, and also help reduce assembly processes and enhance reliability. Flexible circuit boards are the only solution to meet the miniaturization and mobility requirements of electronic products. It can be bent, wound, and folded freely, and can withstand millions of dynamic bendings without da...

AI Technical Summary

Problems solved by technology

[0005] At present, there is a lack of a cleaning agent for surface treatment of flexible circuit boards with good cleaning effect

Images