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Samsung R&D Hardware Interview Questions, Process, and Tips
Top Samsung R&D Hardware Interview Questions and Answers
- Q1. How to divide the frequency of the clock by two?
- Q2. Design a sequential circuit to detect a sequence 001001?Explain it?How can you reduce the minimum number of states in this design?
- Q3. How to divide the frequency of the clock by three?
Samsung R&D Hardware Interview Experiences
2 interviews found
Moazzam Hussain
Interview Questionnaire
22 Questions
- Q1. How to divide the frequency of the clock by two?
- Ans.
To divide the frequency of the clock by two, use a flip-flop circuit.
Use a D flip-flop or a JK flip-flop.
Connect the output of the flip-flop to the input of the clock signal.
The output of the flip-flop will be half the frequency of the input clock signal.
- Q2. How to divide the frequency of the clock by three?
- Ans.
To divide the frequency of the clock by three, use a counter with a divide-by-three function.
Use a counter IC with a divide-by-three function
Connect the clock signal to the counter input
Use the output of the counter as the new clock signal
- Q3. What is FSM and explain the differences between the Mealy and Moore machines?
- Ans.
FSM stands for Finite State Machine. Mealy and Moore machines are two types of FSMs with differences in output.
FSM is a mathematical model used to describe the behavior of a system with a finite number of states.
Mealy machines produce outputs based on both the current state and the inputs.
Moore machines produce outputs based only on the current state.
Mealy machines have more flexibility in generating outputs, while Moo...
- Q4. Design a sequential circuit to detect a sequence 001001?Explain it?How can you reduce the minimum number of states in this design?
- Ans.
Design a sequential circuit to detect the sequence 001001 and reduce the minimum number of states.
Use a state diagram to visualize the circuit
Implement the circuit using flip-flops and logic gates
Use Karnaugh maps to simplify the circuit
Consider using a Mealy or Moore machine
- Q5. I was asked two simple puzzles too!
- Q6. I was asked questions on my project.The tools I used,the design etc
- Q7. What is FPGA and what are its advantages?
- Ans.
FPGA stands for Field Programmable Gate Array. It is a type of integrated circuit that can be programmed after manufacturing.
FPGAs offer flexibility and can be reprogrammed for different applications
They can be used to accelerate certain tasks such as image processing or cryptography
FPGAs can be more power-efficient than traditional CPUs for certain applications
Examples of FPGA manufacturers include Xilinx and Intel (f
- Q8. What is CMOS?Why CMOS?Distinguish the advantages and disadvantages of it?compare it with BJT
- Ans.
CMOS is a type of semiconductor technology used in digital circuits.
CMOS stands for Complementary Metal-Oxide-Semiconductor.
It uses both p-type and n-type MOSFETs to achieve low power consumption and high noise immunity.
Advantages include low power consumption, high noise immunity, and compatibility with digital circuits.
Disadvantages include higher cost and lower speed compared to other technologies.
BJT (Bipolar Junct...
- Q9. Draw the CMOS inverter circuit and derive the transfer characteristics of inverter.What are the regions of operations of it?
- Ans.
Answering a question about CMOS inverter circuit and its transfer characteristics.
The CMOS inverter circuit consists of a PMOS and an NMOS transistor connected in series.
The transfer characteristics of the inverter can be derived by plotting the output voltage against the input voltage.
The regions of operation of the inverter are the cutoff region, the linear region, and the saturation region.
In the cutoff region, both...
- Q10. Derive the current equation of MOS transistor current equations?Both saturation and linear regions!
- Ans.
The current equation of a MOS transistor describes its behavior in both saturation and linear regions.
The current equation in saturation region is given by Ids = 0.5 * k * (Vgs - Vth)^2
The current equation in linear region is given by Ids = k * ((Vgs - Vth) * Vds - 0.5 * Vds^2)
Ids represents the drain current, Vgs is the gate-to-source voltage, Vth is the threshold voltage, Vds is the drain-to-source voltage, and k is ...
- Q11. Questions on L-C-R circuits
- Q12. Questions on flipflops?Like Make a T flipflop from JK flipflop,D flipflop
- Q13. Questions on inductor and capacitor?Their differences?And few other related questions
- Q14. Tell me about yourself?
- Ans.
I am a highly skilled and experienced R&D Hardware professional with a passion for innovation and problem-solving.
I have a Bachelor's degree in Electrical Engineering and a Master's degree in R&D Hardware.
I have worked for 8 years in the R&D department of a leading technology company, where I designed and developed cutting-edge hardware solutions.
I am proficient in various hardware design tools and have a strong unders...
- Q15. Your strengths and weakness?
- Ans.
My strengths include problem-solving, attention to detail, and technical expertise. My weaknesses include public speaking and time management.
Strength: Problem-solving - I have a strong ability to analyze complex problems and find innovative solutions.
Strength: Attention to detail - I pay close attention to the smallest details to ensure accuracy and quality in my work.
Strength: Technical expertise - I have a deep unde...
- Q16. Why less CGPA even though mine is > 8?
- Ans.
The CGPA may be less due to various factors such as difficulty of courses, personal circumstances, or focus on practical skills.
CGPA is not the sole indicator of knowledge or skills.
The difficulty level of courses can vary, affecting the CGPA.
Personal circumstances like health issues or family problems can impact academic performance.
Some individuals may prioritize gaining practical skills over theoretical knowledge.
Ex...
- Q17. Why din't you attend the company PPT?
- Ans.
I was unable to attend the company PPT due to a scheduling conflict.
I had a prior commitment that could not be rescheduled.
I informed my supervisor in advance about my unavailability.
I requested for any materials or information shared during the PPT to be shared with me afterwards.
I made sure to catch up on the content of the PPT through discussions with colleagues who attended.
- Q18. Why Samsung?
- Ans.
Samsung is a leading technology company known for its innovation, quality products, and global presence.
Samsung is a global leader in the technology industry.
They have a strong reputation for innovation and quality.
Samsung offers a wide range of products and services.
They have a strong R&D department dedicated to hardware development.
Samsung has a global presence and a strong market share.
They have a track record of su...
- Q19. Where is the head quarters of Samsung?
- Ans.
The headquarters of Samsung is located in Seoul, South Korea.
Samsung's headquarters is situated in the Gangnam District of Seoul.
The building is known as the Samsung Electronics Building.
It is a modern and iconic structure that reflects Samsung's innovative spirit.
The headquarters houses various departments and divisions of the company.
Samsung's headquarters is a hub for research, development, and decision-making.
- Q20. What are your dreams?Interests?passion?
- Ans.
My dreams are to innovate and create cutting-edge technology. My interests include robotics, artificial intelligence, and renewable energy. My passion lies in pushing the boundaries of what is possible.
Innovating and creating cutting-edge technology
Robotics
Artificial intelligence
Renewable energy
Pushing the boundaries of what is possible
- Q21. Are you okay with Bangalore?
- Ans.
Yes, I am okay with Bangalore.
I have lived in Bangalore for the past 5 years and I love the city.
I am familiar with the local culture, language, and transportation system.
I have a strong network of friends and professional contacts in Bangalore.
I have successfully completed several projects in Bangalore and have a good understanding of the local R&D hardware industry.
I am excited about the opportunities Bangalore offer
- Q22. Tell me about your family and few more personal questions!
Interview Preparation Tips
Experience: The test consisted of 60 aptitude questions.They were divided into numerical,logical reasoning and English.Each of them having 20 questions.Basically those questions were easy to solve.You have to have enough practice to solve those in the required amount of time.I was able to solve 50 of them and since it had no negative marking I guessed the remaining.Overall the first round of test was not that tough!
The technical round was conducted immediately after the aptitude.It had 20 questions ranging from digital electronics, basics of CMOS and few network analysis problems.Overall it was not that hard.If you are good at the basics you can easily solve most of the questions.I was able to solve more than 15 questions.And of course no negative marking here too.overall it was a good experience.
Tips: 1.In first round numerical aptitude takes time to solve.So better solve them at last.
2.Technical test has more than enough time,so accuracy is the key here.
Duration: 60+45 minutes
Total Questions: 60+20
Round: Technical Interview
Experience: Well the interviewer was a very young guy.He tried helping me when I was stuck here and there.It lasted for about 60 mins and I was able to answer almost all of the questions.I was very satisfied with this round and was confident that I would be giving the next round of interview.
Tips: Just be confident and try to take your own time while explaining.
Round: Technical Interview
Experience: This round heavily focussed on CMOS circuits and its basics.I was well prepared for CMOS and so I was ready to face any questions.Overall I answered all of them and Of course I was given snacks in between :).I was very happy with my performance and I knew that this was my day.This round was about 60-70 mins duration.
Tips: Again just be confident and feel free to take help from the interviewers.
Round: HR Interview
Experience: Well it was a really good experience.I knew that this was my day and I just had to answer to the point and just talk anything that came
to my mind.I was really happy when they told me that I was selected.This round was about 30 mins duration.
Tips: It is just for a formality.All you have to do is show that you are passionate about the company and the profession!
Skills: 1)communication Skills, Digital Circuits, RC Circuits, CMOS Circuits
College Name: NIT Warangal
Skills evaluated in this interview
Interview Questionnaire
2 Questions
- Q1. Tech interviews
- Q2. Tech interview 2
Interview Preparation Tips
Experience: Tested basic apti questions.Test platform was cocubes,we need to solve 60 questions in 60 minutes,contains verbal ,logical reasoning and quant sections(20 questions in each section). Logical reasoning questions are a bit tricky,read the problem carefully ,and wisely select an answer.I felt verbal very easy ,answered 15 questions in the section in 5 min, (I attempted it at the last,so there no time left to solve remaining 5) but most of my friends expressed lot of difficultly in attempting those questions.If one feels that he has good proficiency in English ,he should attempt verbal first because probability of scoring is huge. Quantitative aptitude in the last section are general questions ,one may find it very difficult to answer these questions if he has no sufficient practice earlier.
Tips: keep practicing different types of problems otherwise it will be very difficult to clear the round.In my class many 8,9 pointers didn't clear this round disqualifying them from writing next round.I think there is minimum cutoff in each section to clear this round,I don't know the exact split-up of min. cutoffs in each section. So,attempt atleast 12-13 questions from each section to augment your chances of getting shortlisted.
Duration: 60min minutes
Total Questions: 60
Round: Test
Experience: People who ever cleared aptitude round are eligible for tech round.In tech round one can choose either of profile he is interested in.There are two profiles available, software and hardware.My choice of interest is HARDWARE.
Most of the questions are aimed to test your basics in digital ,analog.Questions are of mediocre level ,one should not take more than a minute to solve the question.Many of them dealt with basic RLC circuits,nmos,pmos transistors.
Tips: one need not to be a great scholar to clear this round,questions are not very difficult.A student who is in constant touch with the subject will find the paper very easy.
Duration: 30 minutes
Total Questions: 30
Round: Technical Interview
Experience: The interviewer is very friendly,he is very patient.He clarified all my doubts about the company without a slight hint of impatience or anger on his face.I found it very easy to clear this round.All the questions are mostly based on verilog,basic digital circuits like flipflops,counters.
Tips: Try to solve each question he asks in different ways no. of ways possible.This will surely impress him,gets him to know your proficiency in the subject.This helps you stand apart from other students (I already mentioned that questions are very easy, everybody will be able to answer them,so your method of problem solving should be very clear and comprehensive, it should let know the interviewer know that you are very strong in the subject).
Round: Technical Interview
Experience: In our campus out of 20 ,only 10 are selected from technical round1 to tech round2.I seemed a bit like a stress interview to me.The interviewer crossed questioned me every time I answered something.There was no smile on his face at all,whatever u answer he listens it with a blank face,literally all kinds of expressions are absent on his countenance.This made me tense a little bit.All the questions asked are of higher level,topics covered are more or less same as the first tech interview .I encountered questions like how to design a 5 bit counter,energy band diagrams in mosfet,scaling concepts in mosfet ,a C programming question (very easy one, I forgot that thing ),other basic stuff.He asked me why there are fluctuations in my CGPA (I am an eight pointer) ,my strengths and weakness ,why samsung not other companies?,which subjects u like the most etc.
Tips: For samsung CGPA matters alot,so maintain your cgpa above 8 to be on safe side,revise all the concepts properly before interview,be confident,there should be no grammar mistakes in your conversation.
Round: HR Interview
Experience: I received a call for Hr interview as soon as I finished my 2nd tech interview.So,I am very confident that I will be surely selected (for others there is delay between tech and hr interviews,some half-an-hour,I received call with in 2 minutes). He asked me basic HR questions like:
1.introduce yourself,strengths and weakness
2.Justify them.
3.Why job ,no MS ?
4.how can I believe in you that u will not leave the job after 2 years ?(these questions arose because of my CGPA, but don't think having low CGPA is an advantage ,samsung won't even consider low gpa guys,so be ready with an answer)
5.stream u r interested in,why?
Tips: my sincere advice is, don't ask him any thing about company sponsoring high education programmes or MS related questions.I asked such stupid questions and landed into problems.Because of that my interview went for 45 minutes ,otherwise it would have been finished in 15 minutes(thank god! All my instincts worked fine at the moment,so I successfully diverted the topic). Don't mess up things ,If he asks something about which u have no idea ,confess that u have no clue about it,don't fake things (don't try to deceive him ,he will easily figure out). Prepare your CV properly,don't exaggerate certain things of which u have only little idea.Explanation about your projects should be very clear.
Skills:
College Name: NIT Tiruchirappalli
Interview questions from similar companies
(2 Questions)
- Q1. About i2c, spi, usb
- Q2. Draw 10 layer pcb stack
- Ans.
A 10 layer PCB stack typically consists of alternating layers of copper and insulating material.
Start with a layer of copper for signal routing
Alternate with layers of insulating material to prevent short circuits
Include ground and power planes for stability and noise reduction
Consider impedance control for high-speed signals
Top and bottom layers are usually used for components placement and routing
Interview Preparation Tips
I wanted to share my feedback from the interview process.
Firstly, there was a one-hour company presentation, but much of the information provided was readily available online. Spending an hour on something that didn't add value to my knowledge felt like my time wasn't being respected.
After waiting for a couple of hours, my first interview round happened. I think it went okay. The interviewer didn't introduce themselves, but they asked good questions that highlighted my engineering skills.
After waiting for 10 hours, my second round of interviews began. Once again, the interviewer didn't bother with introductions, perhaps assuming their celebrity status made it unnecessary. When I suggested showing a short presentation to explain my past projects and skills in just 5 minutes, the interviewer refused, claiming they were pressed for time. This completely soured my mood after waiting for 10 hours, especially since they couldn't spare even 5 minutes for my introduction.
As I began my introduction, one of the interviewers started asking questions, cutting me off. I felt it was important to establish my background, but they seemed eager to move on. Despite this, I remained composed and addressed their questions about designing a 10-layer PCB stack and using an oscilloscope. It was clear they hadn't thoroughly reviewed my CV. The interview concluded abruptly after just 7 minutes. Despite the challenges, I appreciated the opportunity and remained professional throughout.
Lenovo, I’m left puzzled by the brevity of our interview. How could my eight years of experience be assessed in just seven minutes and two questions?
I expected inquiries that would highlight my problem-solving skills and delve into my past projects, yet none were asked.
Spending ten hours at your office over the weekend, only to be met with such a rushed interaction, makes me question the value placed on candidates' time.
Waiting for ten hours for my interview without even a brief opportunity to share my background and experiences felt disheartening.
If this is indicative of Lenovo's interview process, it raises concerns about the office culture and how employees' time and contributions are valued. A more comprehensive interview approach would not only provide a better assessment but also demonstrate genuine consideration for candidates.
I offer this feedback constructively, hoping for improvements in future interview experiences for both candidates and Lenovo.
Selected
I applied via Referral and was interviewed in Jul 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Hardware knowledge and experience
- Q2. Laptop and desktop knowledge
Selected
I applied via LinkedIn and was interviewed in Dec 2022. There were 2 interview rounds.
Very good , tricky question related to logical thinking
Digital Design question mostly on basic combo logic design and frontend sanity checker tools
Interview Preparation Tips
Computer Hardware & Networking Engineer Interview Questions & Answers
Dell
Anonymous
posted on 24 Oct 2022
(2 Questions)
- Q1. Computer hardware networking
- Ans.
Computer hardware networking involves the design, installation, and maintenance of computer networks and related hardware.
Designing and configuring computer networks
Installing and maintaining network hardware such as routers and switches
Troubleshooting network issues
Implementing network security measures
Knowledge of network protocols and technologies such as TCP/IP, DNS, and VPNs
- Q2. Cisco certified certificate ossiction
Interview Preparation Tips
I applied via Job Portal and was interviewed in Apr 2022. There were 2 interview rounds.
(2 Questions)
- Q1. WHST WAS WORK EXPERIENCE
- Ans.
Work experience refers to the practical knowledge and skills gained through employment in a specific field or industry.
Work experience is the hands-on experience gained by working in a particular job or role.
It involves applying theoretical knowledge to real-world situations and tasks.
Work experience helps individuals develop industry-specific skills, problem-solving abilities, and professional networks.
Examples of wor...
- Q2. WHAT WAS YOUR EXPERIENCE
- Ans. IF YOU ARE FRESHER IT IS MANDENTRY ... IF YOU RECENTLY WORKED IN ANY COMPANY OR ANY OTHER
Interview Preparation Tips
I applied via Referral and was interviewed before Oct 2019. There were 3 interview rounds.
Interview Questionnaire
4 Questions
- Q1. Tell me about yourself?
- Q2. Why do you left your Organization?
- Q3. If the voice is coming from the CPU what can be the cause?
- Ans.
The voice coming from the CPU can be caused by a malfunctioning fan or a failing hard drive.
Malfunctioning fan can cause a buzzing or whirring sound.
Failing hard drive can produce clicking or grinding noises.
Other possible causes include loose components or electrical interference.
- Q4. Tell me about the last webseries that you watch?
Interview Preparation Tips
Skills evaluated in this interview
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