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What Is PCB Design? From Schematic to a Physical Board
Understand PCB design through a simple resistor circuit: match schematic pins to physical pads, follow copper connections, and separate design-rule checks from functional proof.
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What is a Varistor? What is its Role on a PCB?
The image above shows a real varistor. You might mistake them for capacitors. However, varistors and capacitors don’t have much in common besides their size and design. Varistors are used to suppress voltage surges, a function capacitors cannot perform. A varistor is a resistor whose resistance changes with the voltage Read more
Automotive PCB
Bare PCB Board: Specifications and Assembly Handoff Checks
Understand what a bare PCB board includes, confirm fabrication specifications, read test evidence, and check the handoff before component assembly.
Automotive PCB
EMS PCB Assembly: Scope, Responsibilities and RFQ Checks
Define EMS PCB assembly scope, assign sourcing and test responsibilities, compare quote inclusions, and prepare a controlled handoff before production.
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What is FCT in PCB Manufacturing?
Introduction If you work in the printed circuit board (PCB) industry or simply use electronic devices, you know that post-production testing is crucial before any device reaches the market. Functional Circuit Test (FCT) is a key step in the PCB Assembly (PCBA) quality control process and a fundamental skill that Read more
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What Is a Ceramic PCB? Heat Paths and Material Selection
Learn how a ceramic PCB moves heat, compare substrate choices, work through a thermal-resistance example, and prepare the right data for design review.
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HDI PCBs: Manufacturing Requirements and Reliability Checks
Understand HDI PCB manufacturing requirements, what inspection and electrical tests can show, and which records to request before accepting a production lot.
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How to Repair a PCB: Fault Checks, Fixes and Verification
Learn how to assess PCB damage, choose a repair method, avoid misleading meter readings, and verify the result before returning a board to service.
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What Are Flexible PCBs? Structure, Uses and Bend Limits
Learn how flexible PCBs are built, when they fit a product, and why installation bends differ from repeated motion. Includes a practical review checklist.
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FR4 Substrate Material: Properties, Limits and Uses
Understand what FR4 substrate material is, how its properties affect a PCB, and which electrical, thermal and mechanical limits to check before selection.