Electronic circuit board manufacturing technology advances daily. Etching agents are also required to deliver advanced performance. We are working to develop a succession of etching agents for next-generation technologies, and to move into new product fields.

"ADEKA AFES SYSTEM" is an automatic controller that regularly analyzes etching solutions and automatically feeds separately-prepared reactivating agents and water in necessary quantities based on ORP (oxidation-reduction potential), ion index (concentration of free hydrochloric acids) and specific gravity. This offers the user a number of positive outcomes including stable production of fine patterns and marked improvements in yields, etc.

TFE-Series are an epoch-making and new etchant for fine pattern etching.
This new etchant offers a breakthrough in subtractive etching process.

Among our functional products are metal surface treatment agents for electronic components and stabilizers for alkaline hydrogen peroxide solution.

We produce high-purity Hydrogen peroxide, used in the manufacture of electronic and semiconductor devices and silicon wafers, from industrial Hydrogen peroxide in a continuous process, entirely within one factory site. Our stringent quality control system delivers a stable supply of dependable high-purity Hydrogen peroxide.

There was a time, starting at the beginning of printed circuit boards for industrial applications, in which ammonium persulfate, a base, was used as the etching agent. Outside electronics-related fields, sodium and potassium persulfate were widely used in fields such as chemicals and fibers.