Four key points of esd protection circuit and pcb design

1.What is ESD? ESD stands for electrostatic discharge. Many materials can conduct electricity and accumulate charge. ESD occurs due to triboelectric charging (friction between materials) or electrostatic induction. Whenever this happens, an object develops a fixed charge (static electricity) on its surface. When this object is placed too close to another charged object or material,…

Dry film masking holes appear broken Many customers believe that after the occurrence of broken holes, the film temperature and pressure should be increased to enhance the bonding force. In fact, this view is incorrect. Because the temperature and pressure are too high, the solvent of the resist is excessively volatilized and dried. The film…