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Siliconus Technologies Interview Questions, Process, and Tips
Top Siliconus Technologies Interview Questions and Answers
- Q1. Why don't we consider hold analysis during placement stage?asked in Physical Design Engineer Trainee interview
- Q2. What is CTS? What is standard cell? What violations we face during placement time ?asked in Physical Design Engineer Trainee interview
- Q3. What is pd? What is macro placement guide lines ?asked in Physical Design Engineer Trainee interview
Siliconus Technologies Interview Experiences
2 interviews found
Anonymous
I applied via Walk-in and was interviewed in Apr 2024. There were 2 interview rounds.
All the topics related to aptitude reasoning, static timing analysis numericals, pd related questions
(5 Questions)
- Q1. What is CTS? What is standard cell? What violations we face during placement time ?
- Ans.
CTS stands for Clock Tree Synthesis. Standard cell is a basic building block in digital design. Violations during placement include timing, congestion, and spacing violations.
CTS is the process of creating a clock distribution network to ensure all sequential elements receive clock signals with minimal skew.
Standard cell is a pre-designed logic gate or flip-flop that is used as a building block in digital integrated ci...
- Q2. What is pd? What is macro placement guide lines ?
- Ans.
PD stands for Physical Design, which involves the process of transforming a circuit design into a physical layout. Macro placement guidelines are rules that dictate the placement of large blocks of logic within the layout.
Physical Design (PD) involves converting a circuit design into a physical layout, considering factors like timing, power, and area.
Macro placement guidelines provide rules for placing large blocks of ...
- Q3. Why don't we consider hold analysis during placement stage?
- Ans.
Hold analysis is not considered during placement stage because it is primarily a timing issue and is addressed during the routing stage.
Hold analysis is a timing check that ensures data arrives at the destination flip-flop after the clock edge, without violating the setup time.
During the placement stage, the focus is on meeting the timing constraints related to setup time, while hold time violations are typically addre...
- Q4. How to fix setup violations
- Ans.
Setup violations can be fixed by adjusting timing constraints, optimizing placement, buffering critical paths, and using ECO techniques.
Adjust timing constraints to allow more slack
Optimize placement to reduce wire delays
Insert buffers on critical paths to improve timing
Use ECO techniques like gate resizing or logic restructuring
Perform detailed analysis to identify root causes of setup violations
- Q5. How to fix hold violations
- Ans.
Hold violations can be fixed by adjusting timing constraints, optimizing placement, buffering critical paths, and using advanced EDA tools.
Adjust timing constraints to allow more slack for critical paths
Optimize placement to reduce wire delays and improve timing
Insert buffers to balance delays and meet timing requirements
Use advanced EDA tools for timing analysis and optimization
Consider redesigning logic to reduce cri
Skills evaluated in this interview
Physical Design Engineer Trainee Interview Questions asked at other Companies
Chinna Venkatesh
Work and time problems
Age problems on aptitude
(3 Questions)
- Q1. How will couses hold violations
- Ans.
Course hold violations can be managed by adjusting timing constraints and optimizing the physical design layout.
Adjust timing constraints to reduce hold violations
Optimize physical design layout to improve timing
Use advanced EDA tools to identify and fix hold violations
Consider buffer insertion or resizing to address hold violations
- Q2. What is important stage in pd
- Ans.
Clock tree synthesis is an important stage in physical design.
Clock tree synthesis ensures proper distribution of clock signals throughout the design.
It helps in reducing clock skew and improving timing closure.
Proper clock tree synthesis is crucial for achieving high performance and low power consumption.
Examples include tools like Synopsys ICC, Cadence Innovus, and Mentor Graphics Calibre.
- Q3. Sta is important for pd
- Ans.
Static Timing Analysis (STA) is important for Physical Design (PD) to ensure that the design meets timing requirements.
STA helps in analyzing and verifying the timing of the design to meet performance goals.
It helps in identifying critical paths and optimizing them to improve overall performance.
STA is crucial for ensuring that the design operates within specified timing constraints.
It helps in detecting setup and hold...
(1 Question)
- Q1. How to reduce setup time in placement stage
- Ans.
To reduce setup time in placement stage, optimize floorplan, use advanced algorithms, minimize wirelength, and consider timing constraints.
Optimize floorplan to reduce wirelength and improve timing
Use advanced algorithms for faster and more efficient placement
Minimize wirelength to reduce delays and improve performance
Consider timing constraints to ensure setup time requirements are met
Skills evaluated in this interview
Physical Design Engineer Interview Questions asked at other Companies
Top trending discussions
Interview questions from similar companies
I was interviewed in Jan 2025.
1. Explain about framework architecture and from that all questions derived. asked to write diagram and explain the structure.
2. Difference between class variable and instance variable.
3. what is ITestListener why used and when used in framework.
4. architecture of selenium 4 (geckodriver, chromium driver)
5. what is BDD and cucumber, how both are related to.
6. which kind of framework you go, either POM or Page factory for with testNg/junit?
7. asked to write query on sql joins and how you fetch the second lowest of salary from each department.
8. DDL, DML statements.
9. pathquery and query parameters differences(API)
10. How the responses you are validating in automation framework for Json response file.
11. status code of Https
12. serialization and deserialization difference
13. String Builder, String Buffer and String difference? which is better and which is safe to use.
14. Dropdown in selenium how you handle, how to check which is already selected?
15. multiple data provider in testng and how you pass parameter and how you retrive from excel sheet? Asked to write code!
16.what is flaky testing?
17.Asked to write first code of JDBC connecting establishment with framework.
18. Code execution: input ="aabbabcbb"; output = a:3 , b:5, c:1 like this if they give name also it should count. Tip : HashMap you can write the code.
19. Code execution: a[]={1,2,3,4,0,0,0} b={5,6,7} output need to print as remove all 0's from first array and replace 1,2,3,4 with 5,6,7 some crazy questions.
20. Git cmds and CI/CD tool.
1. asked about architecture and where you used oops concepts?
2. abstract class and interfaces
3. select drop down all options
4. find scrape links from webpage write the code
5. asked for writing xpath for any element random website.
6. asked about following-sibling, descendent and preceding-sibling, normalise-space locators.
7. jdbc connection code.
8. API JSON file - how you done validation in automation testing.
(1 Question)
- Q1. Why team lead position you have not taken till now and is their any managerial skills you are lacking on What kind of projects you worked on water fall model agile team You are only individual contributor?...
- Ans.
I have not pursued a team lead position because I have been focused on honing my technical skills. I have experience working on projects in both waterfall and agile methodologies.
I have chosen to focus on improving my technical skills as an individual contributor rather than taking on a managerial role.
I have worked on projects using both waterfall and agile methodologies, adapting to the needs of the team and project.
...
(1 Question)
- Q1. About experience and studies Compensation discussed. Need all the exp letters and years
Interview Preparation Tips
Selected
I was interviewed in Jan 2025.
(2 Questions)
- Q1. Sale price on on day
- Q2. Start working
Interview Preparation Tips
Key points to remember:
Prioritize networking:
Utilize your network to connect with people in the industry, attend industry events, and leverage platforms like LinkedIn to build relationships with potential hiring managers.
Tailor your resume:
Include relevant sales keywords throughout your resume to catch the attention of recruiters and ensure your experience aligns with the job description.
Practice your sales pitch:
Prepare compelling stories from your past experiences to demonstrate your ability to close deals, overcome objections, and build rapport during interviews.
Follow up consistently:
After submitting applications, send personalized follow-up emails to maintain engagement with potential employers.
Research companies:
Actively monitor companies you're interested in by following their social media and news to stay informed about potential openings.
Highlight transferable skills:
Even if you lack direct sales experience, emphasize skills like communication, persuasion, relationship building, and problem-solving that translate well to a sales role.
Ask insightful questions:
During interviews, demonstrate your knowledge of the company and role by asking thoughtful questions that show your genuine interest.
Be enthusiastic and confident:
Convey a positive attitude and express your passion for sales to make a strong impression on potential employers.
I was interviewed in Jan 2025.
---
Example Question (Numerical Ability):
Question:
If 15% of a number is 45, what is 30% of that number?
Solution:
1. Find the number:
If 15% of a number is 45, then
\text{Number} = \frac{45}{0.15} = 300.
2. Calculate 30% of the number:
Now, 30% of 300 is
0.30 \times 300 = 90.
Answer:
30% of the number is 90.
---
Additional Example (Simple Interest):
Question:
A bank offers a simple interest rate of 5% per annum on a deposit of Rs.20,000. What will be the interest earned in 3 years?
Solution:
1. Use the simple interest formula:
\text{Simple Interest} = \frac{P \times R \times T}{100}
= Principal amount = Rs.20,000
= Rate of interest = 5%
= Time = 3 years
2. Calculate the interest:
\text{Interest} = \frac{20000 \times 5 \times 3}{100} = 3000.
Answer:
The interest earned in 3 years is Rs. 3000.
1. Quantitative Aptitude
Q: A sum of ₹10,000 is invested at 10% per annum simple interest. What is the interest after 3 years?
A: Interest = (P × R × T) / 100 = (10,000 × 10 × 3) / 100 = ₹3,000
2. Reasoning Ability
Q: If A is the father of B, but B is not the son of A, what is B’s relation to A?
A: Daughter
3. English Language
Q: Choose the correct sentence:
a) She don’t like coffee.
b) She doesn’t like coffee.
A: b) She doesn’t like coffee.
4. General Awareness (Banking GK)
Q: What does RBI stand for?
A: Reserve Bank of India
---
Example Question (Numerical Ability):
Question:
A bank offers a simple interest rate of 6% per annum. If a customer deposits Rs. 25,000 for 4 years, what is the total simple interest earned over that period?
Solution:
1. Identify the formula for Simple Interest (SI):
\text{SI} = \frac{P \times R \times T}{100}
is the principal (Rs. 25,000)
is the rate of interest (6%)
is the time period (4 years)
2. Substitute the values into the formula:
\text{SI} = \frac{25000 \times 6 \times 4}{100}
3. Calculate the interest:
\text{SI} = \frac{25000 \times 24}{100} = \frac{600000}{100} = 6000.
Answer:
The total simple interest earned over 4 years is Rs. 6,000.
---
Additional Example (Logical Reasoning):
Question:
In a sequence of numbers representing daily bank transactions, the amounts follow an arithmetic progression: 105, 115, 125, ... What will be the 8th transaction amount?
Solution:
1. Identify the first term and common difference:
First term,
Common difference,
2. Use the formula for the nth term of an arithmetic progression:
a_n = a_1 + (n - 1)d
3. Substitute :
a_8 = 105 + (8 - 1) \times 10 = 105 + 70 = 175.
Answer:
The 8th transaction amount is 175.
(6 Questions)
- Q1. What are some of the Design Patterns you have worked with?
- Q2. What is your approach for a issue you came to know happened in Production.
- Q3. If given a chance to lead a team will you take it up as a challenge of not how would you tackle it?
- Q4. Are you able to work under pressure. How do you manage?
- Q5. What do you understand by SOLID principle? Why do you think it is important.
- Q6. Please solve the coding question provided ( a moderately difficult coding question provided). Help understand your approach and why you chose same. Explain edge caes if possible.
Interview Preparation Tips
Be able to demonstrate through practical approach.
Keep your theoretical approach flexible and more inclined with positive response than bluffing.
Keep confidence at core of and have a good communication practice.
Adhere to Interview rules for example be available with 1 working editor for coding or technical rounds. Be professional in your appearance and always refrain from asking feedback in the interview itself.
I was interviewed in Aug 2024.
The aptitude test will be conducted online.
(7 Questions)
- Q1. Can you tell me about yourself?
- Q2. What is the thread lifecycle in programming?
- Q3. What is the purpose of collections in Java?
- Q4. What are the key concepts of Object-Oriented Programming (OOP)?
- Q5. What are some real-life examples that illustrate the concepts of Object-Oriented Programming (OOP)?
- Q6. Write a code for matrix multiplication?
- Q7. Could you provide details about your academic project?
(1 Question)
- Q1. Basic questions
Interview Preparation Tips
Selected
I was interviewed in Jan 2025.
It sounds like you might be asking for an aptitude test that has 20 questions or characters, possibly for a job application. Aptitude tests for jobs usually focus on assessing your ability to think logically, solve problems, and apply basic skills in areas like math, reasoning, and verbal abilities.
Here’s an example of 20 sample aptitude test questions, covering different types of skills:
1. Numerical Aptitude
What is 15% of 200?
If a car travels 60 miles in 1 hour, how far will it travel in 5 hours at the same speed?
Solve for x: 2x + 5 = 15.
2. Logical Reasoning
What comes next in the sequence: 2, 4, 8, 16, ___?
If all roses are flowers and some flowers are red, are all roses red?
Which number is the odd one out: 3, 5, 9, 7?
3. Verbal Ability
Find the synonym of "quick": a) slow, b) fast, c) steady, d) loud
Choose the correct sentence: "She don't like apples" or "She doesn't like apples?"
Find the antonym of "bright": a) shiny, b) dull, c) happy, d) light
4. Data Interpretation
If a graph shows sales increasing by 20% each month, how much is the increase in the 3rd month if sales were $100 initially?
The pie chart below shows the distribution of monthly expenses. If the rent is 25%, how much is the rent if the total is $1200?
5. Spatial
Interview Preparation Tips
1. Numerical Reasoning
What it assesses: Your ability to work with numbers, percentages, ratios, and interpret data.
Example Question:
If a company’s profit increased from $50,000 to $75,000 in a year, what is the percentage increase in profit?
2. Verbal Reasoning
What it assesses: Your ability to understand and interpret written information
Selected
I was interviewed in Jan 2025.
(2 Questions)
- Q1. SQL medium questions to be done in Pyspark parallely.
- Q2. Datafactory and other azure resources scenario based
(1 Question)
- Q1. Project discussion with the team lead and manager
(1 Question)
- Q1. Technical and general discussion
I was interviewed in Jan 2025.
A sequence was provided: 4181, 2684, 1597, 987, 610.
first 2 are given and write code for other value calculation using java 8
The second question required writing a reverse of a palindrome using both Java 8 streams. I was able to successfully write both and clear the first round.
(6 Questions)
- Q1. Interviewer was himself not knowing anything as it was walkin drive he was sitting infront of me and checking questions on phone Introduction that he inturrepted in between when I was introducing myself
- Q2. What are the features of Java 17, specifically related to sealed classes, including their syntax and necessity, along with the potential errors encountered when invoking a sealed class?
- Ans.
Java 17 introduces sealed classes to restrict inheritance and improve code maintainability.
Sealed classes are declared using the 'sealed' keyword followed by the permitted subclasses.
Subclasses of a sealed class must be either final or sealed themselves.
Errors may occur when trying to extend a sealed class with a non-permitted subclass.
- Q3. Java 8 feathers stream api, functional interface, Intermittent operator ,Ternary operator, Prediction,Bi predicate. Answered all successfully
- Q4. Draw low level design of implementation of notify me if item is back in stock in a ecommerce application
- Ans.
Implementation of 'notify me if item is back in stock' feature in an ecommerce application
Create a database table to store user notifications for out-of-stock items
Implement a service to check item availability and send notifications to subscribed users
Provide a user interface for users to subscribe to notifications for specific items
- Q5. All design patterns which I know. Asked me to implement adapter pattern on paper
- Q6. Then given a problem that concurrent way perform operation on excell to decrease the response time
Interview Preparation Tips
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Physical Design Engineer
28
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|  ₹2.4 L/yr - ₹10.6 L/yr |
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| ₹12 L/yr - ₹13 L/yr |
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