The Qualcomm selection for job was done in 3 stages - first screening round - paper based with subjective questions, then face to face technical rounds - 2-3 rounds and finally the HR round.
Technical Round:
Technical Round:
- Design a Digital circuit for following functionality?
- X - input control
- Y - input clock
- Z - output
- Conditions: when X = 0 --> Z = 0
- Conditions : when X = 1 --> Z = Y and Z should be glitch free.
- Inverter Operation and layout.
- Difference between Mealey and Moore Machine.
- Draw a State diagram to detect the sequence"0011" with overlapping conditions.
- Explain delay Vs PVT conditions -
- Delay - voltage relations
- Delay Vs Temperature relations
- Delay Vs Process relations
- Write a verilog / VHDL code for the counter with reset condition.
- What happens if the delay is inside the sensitivity list and not ?
- Implement a XOR gate using Minimum number of gates/transistors.
- Implement using NAND gates.
- Implement using Pass transistors
- Implement using the AND, OR and NOR gates
- Compare the above implementations in terms of the power, area and speed.
- Advantages and disadvantages of these implementations.
- Which is best implementation?
- Explain the project done by you ? - From Motivation to Implementation.
- Can we combine analog ground and digital ground to the same point ?
- IF Yes then at what level of abstraction - board level or package level, chip level or small modules or RTL level ?
I suggest going through these books for Digital Electronics preparation:
- Tell me about yourself !!
- About project done that you would like to talk about where you have worked in a team and displayed your soft-skills for better results :-)
- Why Qualcomm?
- Why are your percentages consistently low?
- What are your hobbies?
- What if Intel offers you a job after your internship at Intel? Will, you chose Intel or Qualcomm!!
- This is a question that you need to be mindful about !!
- Tell me something about your family?
- What is your technical interest domain?
- Any questions from your side?
This is a book that I highly recommend for anyone to improve on their soft skills. This will not just help in your interviews but also in your day-to-day work.
