Soldered FPC Gold Fingers: Design Rules That Prevent Cracks Soldering a flexible circuit directly to a rigid board is cheaper than fitting a connector and mechanically stronger once it is done, which is why so many compact products use it instead of a board-to-board pair. It is also easy to…

PCB Thermal Mass of An Assembly: Why Two Boards Behave Differently 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.…

PCB Solder Mask Color: Process and Inspection Effects The color of a printed circuit board is the color of its solder mask, and it is the first thing anyone notices and the last thing that determines how the board performs. Green dominates for reasons that are almost entirely about process…

FR4 vs Rogers PCB for RF Modules: Choosing a Laminate A radio circuit at two gigahertz can survive on ordinary laminate. The same circuit at twenty-four gigahertz cannot, and the reason is not the schematic but the material the traces are printed on. Choosing between a standard FR4 and a…

PCB Panel Support in Reflow: Holding the Panel Up 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 panel support in reflow from the perspective of a PCBA…

PCB Oven Temperature Uniformity: Is the Whole Belt the Same 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 oven temperature uniformity from the perspective of a PCBA…

PCB Profiler Accuracy Check: Trusting the Tool 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 profiler accuracy check from the perspective of a PCBA factory floor, covering…

PCB Thermocouple Attachment Method: Getting a True Reading 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 thermocouple attachment method from the perspective of a PCBA factory floor,…

PCB Oven Profile Verification: Proving the Oven Still Matches 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 Nitrogen Consumption in An Oven: What the Gas Costs 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 nitrogen consumption in an oven gives you…