Impedance Control in PCB Manufacturing and TDR Testing As signal rates rise, the characteristic impedance of a trace stops being an incidental property and becomes a requirement. When the impedance along a path is not what the design intended, the signal reflects at the transition, rings, and closes the eye…

PCB Tin Whisker Growth: Thin Metal That Grows 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 tin whisker growth from the perspective of a PCBA factory floor,…

PCB Delamination Causes: When the Layers Part 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 delamination causes from the perspective of a PCBA factory floor, covering finding…

Expedited SMT Service with 24-Hour Turnaround Product development runs to a calendar in which a day matters. A prototype that is verified a day later moves the launch date, and projects are frequently stuck waiting for a handful of assembled boards. What those projects need is not a promise to…

PCB Acoustic Microscopy for Delamination: Listening for Gaps 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 acoustic microscopy for delamination from the perspective of a PCBA factory…

LGA Soldering and RF Test on a Positioning Terminal Board A positioning terminal board may start up and communicate normally and still take too long to acquire satellites, receive a weak signal or report an unstable position. Taking the module off the board at that point is a common reaction…

Odd-Shaped Panel Design for Game Controller Boards A game controller board is shaped by the shell, the buttons and the way the product is held, so curved edges, narrow necks and asymmetric outlines are normal. The board also carries a main controller, a wireless module, a crystal, connectors and the…

PCB Solder Ball Inspection: Checking the Balls by X-ray 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 BGA Voiding: Bubbles in the Ball 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 BGA voiding gives you a practical advantage when you choose…

Moisture Sensitive Device Management for Meter Boards A smart meter communication board carries a main controller, a wireless module, memory, isolation devices and power conversion, and a proportion of the soldering problems that appear on such a board do not originate in the reflow oven at all. When an integrated…