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Detection of Multiple Ions in Circuit Board

Detection of Multiple Ions in Circuit Board

The density of the electrical components on the PCB circuit board is high, and the residual separation on the surface will cause the possibility of separation migration, resulting in open circuit, short circuit and other phenomena. If there is acid residue on the surface of the circuit board, it wil…

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Determination of Chloride in High-purity Phosphoric Acid

Determination of Chloride in High-purity Phosphoric Acid

Electronic grade phosphoric acid belongs to high-purity phosphoric acid and is a widely used ultra-high purity chemical reagent in the electronics industry. It is mainly used for wet cleaning and wet etching of chips, including cleaning before substrate coating, etching and final debonding during ph…

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