| 摘要 |
PURPOSE:To enable the defectless electroless plating on an insulator by adding a surfactant to a sensitization treating liquid or activation treating liquid and pretreating the insulator with this liquid. CONSTITUTION:The insulator is pretreated with the sensitization treating liquid and the activation treating liquid at the time of subjecting the surface of the insulator to electroless plating. The surfactant is added to at least either of the sensitization treating liquid and the activation treating liquid. For example, polyethylene glycol, sodium lauryl sulfate, tetramethyl ammonium chloride, etc., are used for the surfactant. The defect diameter after the electroless plating is thereby diminished to about <=10mum. |
