Solder Bridging Control on Fine Pitch Assemblies A solder bridge is a connection between two joints that should be separate. On a fine pitch assembly the joints are close together, the paste volume is small and the margin between a good joint and a bridge is narrow, so bridging is…

Panel Rail Design Rules The panel rail is the part of the panel that the machine holds, and it is often designed last, after the boards have been placed. That order of work is the reason so many panels handle badly: rails that are too narrow to support the panel,…

PCB Placement Nozzle Standards: Agreeing the Rules Electronics manufacturing has become a discipline of small details. Solder paste volumes, placement accuracy, temperature profiles and inspection limits all add up to the final result. This guide looks at PCB placement nozzle standards from the perspective of a PCBA factory floor, covering…

PCB Conveyor Handover: Passing It On Electronics manufacturing has become a discipline of small details. Solder paste volumes, placement accuracy, temperature profiles and inspection limits all add up to the final result. This guide looks at PCB conveyor handover from the perspective of a PCBA factory floor, covering handing over…

PCB Conveyor Specification: Writing It Down Precisely Modern electronics depend on boards that are assembled correctly the first time. Every product – a phone, a charger, a medical instrument or an industrial controller – relies on thousands of solder joints that must conduct current for years. This article explains PCB…

Cleaning After Hand Soldering Hand soldering leaves more residue than any machine process, because the operator applies flux locally, often more than the joint needs, and the heat source is a tip rather than a controlled profile. Some of that residue is harmless and some of it is not, and…

PCB Placement Nozzle Problems: When It Goes Wrong Electronics manufacturing has become a discipline of small details. Solder paste volumes, placement accuracy, temperature profiles and inspection limits all add up to the final result. This guide looks at PCB placement nozzle problems from the perspective of a PCBA factory floor,…

PCB Placement Nozzle Training: Teaching the Team Electronics manufacturing has become a discipline of small details. Solder paste volumes, placement accuracy, temperature profiles and inspection limits all add up to the final result. This guide looks at PCB placement nozzle training from the perspective of a PCBA factory floor, covering…

PCB Placement Nozzle Cost: What It Adds Up To Buyers and engineers often focus on the finished product and forget the production line behind it. In practice, most field failures can be traced back to process decisions made during assembly. Understanding PCB placement nozzle cost gives you a practical advantage…

Head In Pillow: Design Rules and Process Limits A head in pillow defect is a ball that has never fused with the solder on the pad. The ball sits on top of the paste, the paste melts and reflows into a fillet, and the ball remains solid on top of…