Cadence Internship - Selection process and Questions

Cadence internship test involves the following processes

·        Screening round

·        Technical round

·        HR round

Screening round:

The screening round consists of 10 subjective questions to be solved in 60 minutes. The the following are the 10 questions asked:

1.      Design a T-flip flop using a D-flip flop.

2.      Design a counter using D flip flop(mod 10)

3.      Calculate the setup time and hold time for a given set of specifications. It had sub questions to calculate setup margin and hold margin.

4.      A motor witha circular sheet conneted to it. Circle is painted black and white equally. Two sensors are connected to the circle making an arc of 90 degree. Design a digital logic to find the direction of the motor if clock wise or anti clock wise.

5.      Two current sources are connected in series with a resistor in between them.Find the voltage between the resistor?

6.      There are N teams in a cricket match. How many matches have to be played to know the winner and the runner-up?

7.      Consider an ant on the corner of a match box(Solid). Find the shortest path for the ant to travel from the current position to the diagonally opposite corner. Case 1 with all side equal and Case 2 with different values for the sides.

8.      A code to identify its function.

9.      A network analysis problem to find out the voltage across a particular resistor.

10.   Which of the following are wrong. It had 4 options with the combinations of the following:

Setup time and Hold time - positive and negative.

I suggest going through these books for Digital Electronics preparation:

Technical round:

·        Questions on setup and hold time.

·        Questions on network analysis

·        On verilog coding- they may ask to write a code to generate a sequence and test bench for it.

·        Design a any counter!!

·        On opams(basics)

·        Blocking and non blocking assignments in verilog

HR round: (To read more about HR questions in other tech companies read here)

·        Not a big deal when you have cleared the above two rounds,

·        Basic questiosn on your domain interest.

·        Facilities provided by company- stipend(very good).

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.

Finally, Cadence Internship selection is very easy compared to others.

But, remember to brush up with basics of analog and digital before you go !!