PCB Via Quiz

by | Aug 18, 2020 | 7 comments

The miniaturization of electronic devices was made possible thanks to the advancements in PCB via technology. Manufacturers get a bit dizzy when PCB designers don’t follow the rules concerning their via specs. Find out how well you know about this topic in this PCB via quiz.

 

Results

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#1. What is the ideal aspect ratio for microvia?

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#2. Why is a smaller aspect ratio better for vias?

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#3. What is the main difference between plated holes (PTH) and non-plated holes (NPTH)?

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#4. Which via should be used to save space on the outer layers of a PCB?

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#5. Which of these statements about via hole drilling is false?

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#6. What is the name of the pad around the hole in a via?

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#7. According to IPC standards, the diameter of buried and blind vias should be:

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#8. What is the main reason to choose via-in-pad over conventional vias?

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#9. Why does via-in-pad require a non-conductive epoxy fill?

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#10. When do you implement back-drilling?

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#11. Which of the following is not part of the PCB via finish process?

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#12. What is the purpose of DFM?

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#13. What is the difference between vias and pads?

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#14. What is the IPC standard for via size and tolerance?

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#15. Choose the correct statement for thermal vias.

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#16. Which of the following is a wrong statement regarding thermal management?

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#17. Select the standard that governs via construction in flex PCBs.

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#18. Which of the following is not a filling technique used to fill stacked vias?

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#19. Which is the cost-effective way to connect microvias from one layer to another?

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#20. Name the via structure used in the picture.

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#21. Which of the following is a wrong statement about vias used in flex PCBs?

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#22. Name the routing method where a via is offset from the pad and placed at the center of four pads.

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#23. What is the difference between via stitching and via shielding?

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#24. Which is not a function of via stitching?

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7 Comments

  1. Avatar

    Thanks For Sierra Circuits For Keeping Technical Content Running.

    Reply
  2. Avatar

    Thanks for Sierra Circuits in keeping Technical Content running

    Reply
  3. Avatar

    It appears that I have a lot to learn about via’s!! Thanks for the test, it is very interesting to see what you are doing.

    Reply
  4. Avatar

    Thank you for keeping Technical Content running and now I need to read more on DFM Handbook

    Reply
  5. Avatar

    Thank you

    Reply
  6. Avatar

    Fun quiz

    Reply
  7. Avatar

    Good Quiz

    Reply

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