PCB Component Quiz

by | Sep 29, 2020 | 10 comments

PCB components are the functional part of the board and designers should know everything about them. Take this quiz to test your knowledge on PCB components.

 

Results

Congratulations! You are ready for PCB assembly. It may still be worth your time going through our DFM Handbook.

Oops! It looks like components aren’t your strength. That’s ok, Sierra Circuits checks for component errors. And you can learn more in our DFM Handbook.

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#1. Can you spot the passive component?

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#2. What is impedance?

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#3. Utilization of 3D component models in the PCB layout can assist with:

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#4. What is Surface Mount Technology (SMT)?

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#5. The life cycle of an electronic component is an important attribute that should be considered during PCB assembly.

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#6. Identify the quad flat no-leads (QFN) package.

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#7. Why use a Ball Grid Array (BGA) in a circuit?

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#8. What are the factors that play a prominent role in components placement?

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#9. What is the function of a bypass capacitor?

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#10. What is the purpose of local fiducial marks with respect to component placement?

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#11. What do inaccurate BOMs lead to?

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BOM Checker by Sierra Circuits

10 Comments

  1. Jack Carroll

    The correct answer for #6 is “Neither of the above”. There is no picture of a QFN package. The QFP has leads.

    Reply
    • Rahul Shashikanth

      Hi Jack,

      Thank you for correcting us. We have made the changes to question #6.

      Reply
  2. Kadhem Alabdulmuhsin

    Q6 is wrong. The presented package is qfp not qfn

    Reply
    • Rahul Shashikanth

      Hi Kadhem,

      Thank you for bringing this to our notice. We have made the changes accordingly. Hope you like our content.

      Reply
  3. Jason D.

    #7 answer should be: BGAs have a higher density of connections than a conventional SMT package of the same size (they are mounted the same distance to the PCB surface).

    Reply
    • Yadav Venugopal

      Hi Jason,

      Thank you, we have marked the answer for question #7.

      Reply
  4. Louis Geoffroy

    question #5, it’s not during PCB assembly but during design of the schematic and architecture. At the PCB assembly, it’s too late.

    Reply
    • Rasika

      Thank you for noticing! We have made the necessary correction.

      Reply
  5. Joseph Cierniewski

    For question #2, a more accurate response would be:

    Impedance is the “vector” sum of the resistance and reactance of an electrical circuit measured in Ohms

    The arithmetic sum would be incorrect.

    Reply
    • Rasika

      Thank you for noticing! We have made the necessary correction.

      Reply

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