PCB Flex Circuit Stiffener Bonding: Adding Stiffness to a Flex 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 flex circuit stiffener bonding gives you a…

Control Board PCB Design Principles for Noise Immunity A control board is a small computer surrounded by the things it controls, and its reliability depends on how well the layout keeps the noisy parts of that arrangement away from the sensitive ones. The rules are not complicated, and most of…

PCB Rigid Flex Bend Test: Bending the Board on Purpose 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…

PCB Edge Bonding for Flex: Gluing the Flex to the Board 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 EMC Problems: Finding the EMI Source and the Coupling Path When a product fails an EMC test, the temptation is to reach for the enclosure and the cables first and start wrapping. That approach sometimes works and never explains itself, and it produces a product whose compliance depends on…

PCB Underfill Flow Time: Waiting for the Resin 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 underfill flow time from the perspective of a PCBA factory floor,…

What Drives PCB Manufacturing Cost: Layers, Vias and Materials Layout effort goes into placement and routing, and the cost that the layout creates is usually noticed later, when the quotation arrives. Most of that cost is decided by a small number of choices, and almost all of them can be…

PCB Staking Material Selection: Gluing Heavy Parts Down 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 staking material selection gives you a practical advantage when…

Panelization for Assembly: V-Cut, Tabs and Tooling Strips Surface mount lines handle panels, not single boards. A bare board that is 60 mm by 40 mm cannot be fed through a printer, a placer and a reflow oven on its own, so it is built as part of an array…

PCB Coating Thickness on Edges: The Hard Places to Cover 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 coating thickness on edges from the perspective of a…