Food-grade citric acid is processed using proprietary high-purity technology and analytical techniques to reduce metal impurities to below 1 ppb. It is primarily used in the electronics field.

■ Low toxicity, relatively easy-to-handle organic acid with extremely low metal corrosion potential
■ Forms complexes with metal ions such as Fe (chelation effect)
■ Efficiently removes contaminants, oxides, and heavy metals like Cu adhering to substrates
■ Controls the zeta potential of substrates and particles to induce mutual repulsion (lift-off effect)
■ Consistent quality and stable supply through integrated production from raw materials

Applications

● P-CMP cleaner
●Etching solution/stripper solution
● CMP slurry
● Semiconductor substrate cleaner
● Others

※ We handle various high-purity organic acids; please consult us.