Blog
Rigid-Flex PCB Manufacturing Process: Controls and Tests
See how rigid-flex PCBs are built, which process controls prevent transition and plating failures, and what test evidence to request before ordering.
Blog
How to Make a Multilayer PCB: Stackup, Lamination and DFM Checks
See how multilayer PCBs are designed, imaged, laminated, drilled, plated, finished, and tested, plus the files and DFM checks needed before fabrication.
Blog
PCB FR4 Material Guide: Properties, Stackup and Quote Checks
Choose PCB FR4 material by matching Tg, Dk, Df, thickness, copper and application risk to the actual board requirement.
Blog
4 Layer PCB Stackup: Signal, Ground, Power and DFM Checks
Learn a practical 4 layer PCB stackup, when to use signal-ground-power-signal layers, what to check for impedance, copper balance, vias and fabrication.
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PCB Material Specification: Stackup, Properties and Substitution Checks
Learn how to specify PCB laminate, stackup, electrical and thermal properties, approved substitutes, fabrication notes, and supplier evidence.
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PCB Substrates Explained: Core, Prepreg, Materials and Selection
Learn what PCB substrates are, how core and prepreg differ, which material properties matter, and how to specify a verifiable stackup for fabrication.
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How to Make Multilayer PCB: Stackup, Lamination and DFM Checks
Learn how multilayer PCB boards are made, from stackup and inner layers to lamination, drilling, plating, testing and buyer DFM checks.
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How to Measure PCB Trace Impedance: TDR, Coupons and DFM Checks
Learn how to measure PCB trace impedance with TDR, test coupons, stackup data, tolerance checks, and controlled impedance DFM review.
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How to Tell How Many Layers a PCB Has: Vias, Edges and Stackup Checks
Learn how to tell how many layers a PCB has using edge inspection, vias, light checks, stackup clues, and when to ask a manufacturer for confirmation.
Blog
How to Choose PCB Copper Thickness: Current, Heat and Quote Checks
Learn how to choose PCB copper thickness by current load, trace width, temperature rise, via plating, layer stackup and manufacturing cost.