Requirements for Rework and Repair Technology of Bad SMT
In the SMT processing process, sometimes there will be defects such as misalignment and bridging. If such defects occur, the PCB needs to be reworked and repaired. So what are the requirements for the rework and repair technology of bad SMT? 1. Operators should wear anti-static wrist straps or bracelets. 2. It is generally required to use an anti-static constant temperature electric soldering iron. If you use a common electric soldering iron, the ground must be good. 3. When repairing chip components, a 15-20W low-power electric soldering iron should be used, and the temperature of the soldering iron tip should be controlled below 250 ℃ . 4. The soldering time should not be too long, otherwise it is easy to burn out the components. soldering times of the same solder joint shall not exceed two times. ...