Router Bit Wear and Depanel Edge Quality Depaneling a panel with a router removes material rather than shearing it, which gives a clean edge and allows almost any outline to be cut. The cut is made by a small carbide bit spinning at high speed while the panel is moved…

Selective Soldering Fixture Design Requirements Selective soldering solders one joint or one group of joints at a time, so the board has to be in the same place for every one of them. That is the fixture job, and it has to do it while the board is heated locally,…

AOI Program Tuning: Cutting False Calls Without Escapes An AOI program is a set of decisions about what an acceptable joint looks like, written as tolerances on measurements the machine can make. The machine does not see a good joint; it sees the area of a fillet, the position of…

Wave Solder Fluxer Setup and Spray Control The fluxer decides how much chemistry reaches the joint before the wave. Too little and the oxides are not removed, so the alloy beads instead of wetting; too much and the board leaves the machine with residue, spatter and a flux that has…

Solder Paste Metal Content And Powder Size Explained Solder paste is an alloy powder suspended in a flux vehicle, and the ratio between the two is the single number that most influences how the paste prints. Suppliers quote that ratio as metal content by weight, which is convenient for them…

PCB Shop Humidity Control: A Practical Manufacturing Guide 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 Shop Humidity Checklist: Design and Assembly Considerations 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 shop humidity checklist gives you a practical advantage when…

PCB Shop Humidity Problems: A Practical Manufacturing Guide 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 shop humidity problems gives you a practical advantage when…

PCB Shop Humidity Traceability: Key Process and Quality Checks 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…

PCB Shop Humidity Improvement: Key Process and Quality Checks 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 shop humidity improvement from the perspective of a PCBA factory…