Blog
How to Clean a PCB Before Soldering: A Practical Step-by-Step Guide
Learn how to clean a PCB before soldering without damaging pads or finishes. Follow safe steps for dust, oils, residue, tarnish, drying, and inspection.
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China Hard Gold PCB: Plating, Gold Fingers and RFQ Checks
Source a China hard gold PCB with practical checks for selective plating, gold fingers, drawings, inspection and comparable RFQs.
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China Prototype PCB: DFM, Files and First-Build Quote Checks
Plan a China prototype PCB order with practical DFM, file, specification, testing and first-build quote checks before production.
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PCB Thermal Relief: Spokes, Current and Soldering Checks
Learn when PCB thermal relief pads improve soldering, when solid connections are safer, and how to review spokes, current, vias and DFM rules.
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PCB Etch Factor: Undercut, Trace Width and CAM Compensation
Learn how PCB etch factor changes finished trace width, impedance and fine-line DFM, with formulas, examples and fabrication checks.
Blog
How Does PCB Layout Change the Heat Path?
A component does not simply release heat into open air. Heat must travel from the semiconductor junction or resistive element through the package, solder connection, PCB copper, vias, thermal interface, enclosure, heat sink, or surrounding air. PCB layout determines how continuous—or restrictive—that path becomes. Two boards using the same component Read more
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Laser Direct Imaging PCB Process: A Practical Step-by-Step Guide
Most articles about laser direct imaging, or LDI, start with the same promise: “LDI improves PCB accuracy, productivity, and yield.” That is not wrong. It is just incomplete. LDI does not magically fix every PCB manufacturing problem. It cannot compensate for poor copper preparation, unstable dry film, incorrect focus, weak Read more
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High Frequency PCB Design Guidelines: Stackup, Impedance, Routing and EMI Control
Designing a high frequency PCB is not the same as laying out a standard digital board. Once signals rise above a few hundred MHz, every physical dimension on the board — trace width, dielectric thickness, via geometry, reference plane continuity — starts to affect electrical performance in ways that a Read more
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What Is FR4? Meaning, PCB Material Properties and Quote Checks
Learn what FR4 means in PCB manufacturing, which properties matter, when standard FR4 is enough, and what to confirm before ordering.
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FR4 Printed Circuit Board: Material, Stackup and Manufacturing Checks
Understand how an FR4 printed circuit board is built, what to check in stackup and fabrication, and when standard FR4 needs review.