Component Design Engineer Interview Questions | Glassdoor

Component Design Engineer Interview Questions

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Which is preferred NAND or NOR? And why?

2 Answers

Nor gate because it's 1 transistor to construct. Nand gate requires 2...slower and more space taken up.

Nand is Preffered over Nor... The logical effort for a NAND gate is 4/3 and that for a NOR gate is 5/3. The lower the logical effort the better the gate. So a NAND gate is preferred over a NOR gate. If we have two different ways of realizing a boolean function, the type, which has a lower logical effort associated with it, is the better one. Therefore, the NAND gate is better in terms of its ability to drive its output while reducing the load at its input. A NAND gate is preferred over a NOR gate in implementing CMOS logic because, the area occupied by the NOR gate is larger and the associated capacitance is larger for NOR gate, thereby exhibiting more delay for the circuit. If we have NAND logic then the parallel connection of transistor will increase the capacitance linearly increasing the delay. In The series connection of transistors, the delay is quadraticaly proportional to the number of elements in the chain

Oscillator from nand gate?

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Most of the questions are expected and easy and are related the job role.

1 Answer

How many flops in FSM if you have 4 states

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Describe all the steps I would take to verify a hardware block.

1 Answer

In addition to technical questions there is alos behavioral questions asked. One example is "tell me about a time when you had to do something different from what the conventional approach suggested".

1 Answer

In Verilog what is the difference between a blocking and non-blocking statement?

1 Answer

I was asked what options one might have to rectify a max timing path.

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I was asked to draw the circuit diagram of a comparator and then describe how it functions on the circuit level.

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How to fix the hold-time violation after the chip was fabricated?

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