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How to Etch a PCB Board: Steps, Safety and Factory Limits
Learn how to etch a PCB board safely, from copper cleaning and resist transfer to etching checks, common failures and when to use factory fabrication.
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How to Trace a PCB Circuit: Tracks, Continuity and Repair Checks
Learn how to trace a PCB circuit by following visible tracks, using continuity mode correctly, marking nets, checking components and preparing repair or remake notes.
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The Complete PCB Design Guide for Beginners: From Schematic to Manufacturing
What You Actually Need to Know Before Starting A printed circuit board is a layered structure. At its simplest, you’re looking at three things working together: Most beginner projects use a two-layer board — copper on top, copper on the bottom, connected through drilled and plated holes called vias. That configuration covers the Read more
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How to Use EasyEDA for PCB Design: Schematic, Layout and Gerber Checks
Learn how to use EasyEDA for PCB design from schematic and footprint checks through layout, DRC, Gerber export and manufacturing review.
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PCB Components Identification Chart: Designators, Codes and Polarity
Use this PCB components identification chart to read reference designators, package clues, top markings, polarity and Pin 1, then confirm parts correctly.
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How to Clean a Corroded Circuit Board: Clean, Inspect and Test
Learn how to identify the residue, clean a corroded circuit board safely, inspect damaged traces and pads, and test it before controlled power-up.
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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 Test a PCB: Safe Steps, Multimeter Checks and Pass/Fail Results
Learn how to test a PCB safely with visual inspection, multimeter checks, controlled power-up, fault isolation and clear pass/fail evidence.
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Why Use Teflon (PTFE) for RF PCBs?
The Material Behind the Magic of Modern Wireless Every generation of wireless technology pushes frequencies higher, data rates faster, and tolerances tighter. The 5G New Radio bands above 24 GHz. Automotive radar operating at 77 GHz. Satellite links bouncing signals across vacuum and atmosphere simultaneously. In each of these domains, Read more