Rogers RT/duroid 5880: PTFE Laminate Guide What RT/duroid 5880 Is RT/duroid 5880 is a polytetrafluoroethylene composite reinforced with randomly oriented micro glass fibres. Its reputation comes from two published numbers: a dielectric constant of approximately 2.2 and a loss tangent of about 0.0009 at ten gigahertz, both of which stay…

PCB Solder Mask Over Bare Copper: Covering the Exposed Copper 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 Fiducial Mark Contrast Design: Process Details and Inspection Points 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 fiducial mark contrast design from the perspective of a…

Power Bank PCB: Charging, Protection and Layout What the Board Does A power bank board manages energy in both directions. On the input side it takes power from a USB charger, charges the lithium cell safely and reports the charge state. On the output side it boosts the cell voltage…

SMT Reflow Profile Verification Frequency: How Often to Verify 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 SMT reflow profile verification frequency from the perspective of a PCBA…

Arlon PCB Materials: Grades, Properties and Selection What Arlon Materials Are Arlon is a family of high performance laminates rather than a single material. The name covers several different resin systems made for different problems: radio frequency circuits that need a low and stable dielectric constant, high speed digital boards…

Megtron 6 PCB: High Speed Low Loss Laminate What Megtron 6 Is Megtron 6 is a high speed, low loss laminate used for boards that carry fast serial links or high frequency signals. It is a filled resin system reinforced with glass fabric, and its value is in two electrical…

PCB Legend Curing Oven: From Prototype to Volume Production 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 legend curing oven from the perspective of a PCBA factory…

Switching Power Supply PCB: Layout Rules That Work Why the Layout Decides the Supply A switching supply is a schematic that almost never works as drawn. The circuit is simple, an inductor, a switch, a diode or a synchronous rectifier, a controller and a handful of capacitors, but the currents…

PCB Drilling Entry Material Selection: The Right Cover Sheet 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 drilling entry material selection from the perspective of a PCBA…