| abstract |
The present invention provides a cleaning agent for effectively removing only the anisotropic conductive film (ACF) applied to the PCB without damaging other parts in order to reuse the PCB (Printed Circuit Board). In order to clean only the ACF, it is most preferable to apply an appropriate amount to the ACF site by increasing the viscosity so that the cleaner does not flow down, and then wiping it with a brush after a certain time. In the present invention, a cleaning composition suitable for this purpose is prepared by mixing trichloroethylene or tetrachloroethylene which is effective in removing ACF, and adding additives such as thickener, methanol, and surfactant thereto. |