I attended this recruitment via a referral and was invited to take a test at their office in Hyderabad.

The first step was a written test. It consisted of basic digital design concepts, Verilog, a question from analog, and a question from Unix. Out of 25 questions, 10 were multiple-choice, and 15 were descriptive.

After being selected for the interview round, three technical rounds of interviews took place. Each round lasted around 50 minutes to 1 hour. As I struggled in the interview process, the third round lasted about 25 minutes.

The interview process focused on testing basic digital design concepts and the approach to problem-solving. They asked about multiplexers, flip-flops, latches, counters, and shift registers, among other topics. They also asked about Verilog.

My performance was not good, as I was unable to answer questions related to Verilog. They also inquired if I had taken training from VLSI training institutes.

Each of the three technical interview rounds consisted of a panel of two members.

I have just graduated with a B.Tech.

First Round:

1. Asked about college.
2. Implement a 7:1 Mux using 2:1 Muxes.
3. Why is Verilog used in this field?
4. Difference between a latch and a flip-flop (with waveforms).
5. You had C in engineering; why didn't you include it on your resume? C has more use, right?
6. About the Major Project (Why is it not related to VLSI?).
7. Frequency Division Circuit.
8. What is the default value of a wire?
9. What is the default value of a reg?
10. Convert one hexadecimal number to binary.

Second Round:

1. Tell me about yourself. (I was enrolled in a program; asked about that program in detail.)
2. Design an asynchronous flip-flop in Verilog.
3. What is setup time and hold time?
4. What are the different types of delay and explain them?
5. Differences between RISC and CISC.
6. What are the applications of counters?
7. What is a shift register? Explain its operation with a suitable circuit diagram.
8. Pseudocode for finding prime numbers from 1 to 100.
9. What is LFSR?
10. What is pipelining? How is it implemented?
11. Could you draw the symbol of a CMOS inverter?
12. What is CMOS?
13. Do you really know Python?
14. What did you do in MATLAB?
15. Certifications are not enough. Did you do any project related to this?

Third Round:

1. Gave an AND-OR circuit and asked to convert it into a MUX.
2. Difference between a latch and a flip-flop.
3. Draw a latch using only NAND gates.
4. Draw a D latch.
5. Pseudocode for checking a string within the contents of a file in a directory of files.
6. Is MATLAB a tool or a language?