PCB Design interview questions
Stackup, layout, and the decisions that determine whether a board works.
Interviewers rarely ask you to define anything here. They describe a symptom, a measurement, or a constraint and watch how you reason. The 5 concepts below are what a strong answer draws on, and they are exactly what this product weights up when a job posting mentions pcb, layout, altium.
What interviewers probe
- Stackup & Layer Planning
- Layer count, plane placement, and controlled impedance.
- Grounding StrategyCore
- Ground planes, splits, stitching, and analog/digital partitioning.
- Component Placement
- Placement driven by current loops, thermal paths, and test access.
- Schematic Review
- Reading a schematic critically and catching the error before fabrication.
- Design Rules & Constraints
- Clearance, trace width for current, via strategy, and manufacturability limits.
Understand these first
These sit underneath pcb design and come from other topics. If this material keeps failing to stick, the gap is usually here rather than in the topic itself.
How this topic gets weighted
A posting that mentions pcb, layout, altium pushes pcb design up the curriculum, and the weighting is shown with the quote from the posting that caused it. Two candidates preparing for different roles get genuinely different plans from the same taxonomy — and because mastery is stored per concept rather than per application, what you learn here still counts on your next one.
Related topics
Practice pcb design against a real posting
Paste the job description you are actually interviewing for. The curriculum weights this topic against everything else the role needs, and the scheduler serves the questions that close your gaps fastest.