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Vlsi cad engineer interview questions

Most commonly asked AutoCAD Interview Questions

As in any interview, it's a good idea to review questions, and practice your response, in advance of the interview. Being prepared will help you feel confident, and ensure you're hitting the right notes in your answers. Since hiring initiatives can be time-intensive and expensive, they also prefer to hire associates that they can trust will stick around for a while.

Prepare for these questions by researching the firm ahead of time. Your interviewer may also inquire about your plans for the future and about information you may not have included on your resume. Be ready to offer examples of a few of your most important engineering accomplishments that demanded deep analytical skills and a proactive trouble-shooting stance.

In addition to job-specific interview questions, you will also be asked more general questions about your employment history, education, strengths, weaknesses, achievements, goals, and plans. Full Bio Follow Linkedin.

Follow Twitter. Alison Doyle is the job search expert for The Balance Careers, and one of the industry's most highly-regarded job search and career experts. Read The Balance's editorial policies. Tell me about the most challenging engineering project that you have been involved with during the past year.

Describe the most challenging written technical report or presentation that you've had to complete. Describe an experience with a difficult client. How did you handle the situation? What would you have done differently? Tell me about your greatest success in using logic to solve an engineering problem. Give me an example of a time when you applied your ability to use analytical techniques to define problems or design solutions.

What checks and balances do you use to make sure that you don't make mistakes? Do you have any patents? If so, tell me about them. If not, is that something you see yourself pursuing in the future? Why or why not? Which software packages are you familiar with? What is the most interesting thing you know how to do with one of these packages? What are you doing to stay current with the latest technology? What appeals to you about working for our company?

Why did you apply for this particular job? Why did you select civil engineering as your field or major? Describe a time when you questioned your choice of engineering as a career or major. Describe an occasion when you worked on a team and something did not go well. How did you respond?

Share a situation when a project or proposal of yours met resistance or was not adopted in a timely fashion. How did you handle this dilemma? What strengths make you a good engineer? Describe a time when you received criticism from a supervisor or professor. What is an example of a problem where you had to think on your feet? What will be the biggest challenge for you with this position?Autocad is a software program built to design and shape the 2-D and 3-D images.

It also has the option to create detailed design layout, which can be automatically drawn by using source model. Autocad can be used by the professionals to visualize the imaginary view of the product on a computer system. In Autocad, it is possible by the drafter to make the changes in the product before it gets finalized for design.

It also gives the freedom for the designer to implement their various ideas and represent them to the suppliers or their clients. Autocad is more popular among the architects, engineers and builders for developing their building layouts. In Autocad. It provides different languages which can be used as per the requirement.

User interface can be created by using the command prompts to draw the plots and dialog boxes. To enhance the architectural designing of 3D object Autocad uses the vertical integration program. The data is programmed in such away that it represents only the architectural products and the extracted files, and can be modified according to the requirement. In Autocad variants are used to help in creation, visualizing and rendering the 3D models that include 3D printing as well.

Autocad has replaced the traditional method of drafting and designing which was made by pencil, drafting boards, triangles and compass with just a set of a computer program.

AutoCAD Interview Questions & Answers in Hindi - Civil & Mechanical Engineers

When a need arises to draw a new line the process opens up a new file in a new session to write the file. Autocad allows saving multiple drawing for each session. The files are saved by using the file extension. Autocad detects the problem and correct it by removing the corruption with the drawing parts.

The error can be corrected or neglected by finding out the exact location of the poly-line that has zero vertices. Default drawing directory has sub directories having the information using the windows commands. The applications, which are going to be used, are highlighted, and by using drag and drop features those application will be placed in the default directory. The copying of the closed drawing can be done by the designer center in the toolbar of the Autocad.

The modification of the drawing can be done by using graphical interface. To hide the specific layers while plotting, you can use various options like turning off the layers for plottingfreezing the layers and turning off. The layers that are turned off will hide the layers and also it will not appear on the screen. To copy a dimension style, a new document has to be created. Once it is created, this document will be saved as a drawing template.

A new reference will be created by new drawing template document and it will show all the options like layer style, units and blocks. Drawing can be done by seeing the current drawing and dimension style would be same as the original picture. By using the design center, Autocad tools can be used to copy the dimension styles from one drawing to another.

The layers can be removed only when the object resides in the layers will be removed, once it is removed it is an empty layer. The empty layers cannot be deleted by purge. It might be because the layer is frozen on a viewport or referenced by an object in a block definition.

You can edit the dxf file in a text editor and rename all the instances of layers in the file, except the layer definition. Autocad WS provides many option for mobile application developer like edit, view and share. The application can be downloaded and installed from anywhere in the world, ignoring the licensing problem.Embarking on your career as an engineer can be intimidating and time-consuming. Many hours go into creating a great resume and cover letter and scanning job boards for opportunities.

After all that time invested, make sure you spend sufficient time on your interview preparation as well. Being prepared to answer these 10 essential engineering interview questions will give you a great head start.

By asking this behavioral interview questionyour interviewer is trying to gain an understanding of your approach to problem-solving. You should give her an example that demonstrates your ability to recover when things go wrong:. Around week four, we realized that one of the group members was not pulling his weight. The work he agreed to do was not getting done.

I took charge of the situation and scheduled a group meeting to discuss the issue. Ultimately, that person dropped the course, but by addressing the problem head-on, the group was able to divide up our work and complete the project on-time. In the future, I would make sure that the group has weekly meetings to assess our progress. That would make sure the project was on-track and that the work was getting done. Your interviewer knows that not every job is perfect.

The interviewer is asking this question to gauge your own initiative in keeping your knowledge and skills up-to-date. Engineers have to keep pace with changes in the industry and technological advances. I have a basic knowledge of Civil 3D from school, but I thought upgrading my skills would be a valuable investment in my career as an engineer. Take a look at the company website and any recent press releases. As a minority, working for a company that values all types of people and experience is important to me.

Workplace safety is paramount in engineering organizations. Your answer to this behavioral interview question needs to assure your interviewer that you have a high level of respect for safe work practices:. It crossed a high-traffic hallway and posed a trip hazard. They agreed, and I helped them secure it so it was no longer a hazard.This helps you to gain confidence and answer any related questions during that crucial interview time and increase your chances for success.

Based on my more than a decade of interview experience, I wanted to share some details on how I go about interviewing:. I usually give him a simple design and specification eg: a full adder or a simple ALU or a simple cache or a Multi master bus or a SRAM controller or anything of that sort.

vlsi cad engineer interview questions

This helps me to ask several follow on questions and evaluate how well the candidate knows about verification and how well he thinks through, given a problem. The more the candidate answers, I go in more depth and ask more questions on his approach, the verification methodology, stimulus generation styles, assertions, checkers etc etc.

This process tells me how far a candidate can think through. And lastly I also ask questions related to his past work experience as per resume which helps to judge how well he has performed in past.

This is important as the past performance is a clear indication of how he will perform in the future. Read them and then focus your preparation by practicing some of the commonly asked questions.

You can find a lot of them in the same book. Not that only these questions get asked in an interview but this will help your preparation. Robin my co-author and myself also tried to put some extra focus on the latest and greatest Verification methodologies like UVM and System Verilog following the latest trend.May 25, MOSFET has three regions of operation: the cut-off region, the triode region, and the saturation region.

The cut-off region and the triode region are used to operate as switch. The saturation region is used to operate as amplifier. The value of voltage between Gate and Source i.

When we further increase V DStill the voltage between gate and channel at the drain end to become V ti. No current flows. When V DS is increased the channel pinch-off point starts moving away from the Drain and towards the Source. Due to which the effective channel length decreases, and this phenomenon is called as Channel Length Modulation. When a positive voltage is applied across Gate, it causes the free holes positive charge to be repelled from the region of substrate under the Gate the channel region.

When these holes are pushed down the substrate they leave behind a carrier-depletion region. Which causes a reverse bias voltage between source and body that effects the transistor operation, by widening the depletion region. The widened depletion region will result in the reduction of channel depth. To restore the channel depth to its normal depth the VGS has to be increased.

This is effectively seen as change in the threshold voltage - V t. This effect, which is caused by applying some voltage to body is known as body effect. As discussed in the above question, the V t depends on the voltage connected to the Body terminal. It also depends on the temperature, the magnitude of V t decreases by about 2mV for every 1 o C rise in temperature. Labels Interview Questions. Labels: Interview Questions. Whether it is data science or machine learning or deep learning or big data, Data Science Central is a one-stop shop that covers a wide range of data science topics that includes technology, tools, data visualisation, code, and job opportunities.

Also, many industry experts contribute to the community forum for discussion or questions. April 16, at AM.

vlsi cad engineer interview questions

Kiruthiprabha said…. Thanks for such a great article here. It was definitely interesting for me to read about their market situation nowadays. June 22, at AM. Post a Comment. Popular posts from this blog Setup and Hold TIme. April 09, Every flip-flop has restrictive time regions around the active clock edge in which input should not change.

It may be derived from either the old input, the new input, or even in between the two. Here we define, two very important terms in the digital clocking. Setup and Hold time. The setup time is the interval before the clock where the data must be held stable. The hold time is the interval after the clock where the data must be held stable.

What are your best ASIC Verification Interview Questions?

Hold time can be negative, which means the data can change slightly before the clock edge and still be properly captured. Most of the current day flip-flops has zero or negative hold time. In the above figure, the shaded region is the restricted region.Are you a Physical Design Engineersearching for a job where you can enhance your experience in a reputed organization?

If yes, then log on to wisdomjobs page to search for the various job opportunities available for you in some of the best organizations, who promise to give you a handsome pay. An experience in a Physical Design job will help you to carry out a lead role in block level activities such as floor plans, STA, abstract view generation, schematic-to-layout verifications, improving RTL and route flows.

Based on your qualifications and experience you can search from the job list available to you on wisdomjobs. Apply to the job you think is the best for you and also read the Physical Design job interview questions and answers which are specially prepared for you, to help you pass the interview level easily.

Question 1. Answer : Metal Density rules take care of metal over-etching and metal lift off issues encountered durinf manufacturing process. Question 2. Answer : Power routes generally conduct a lot of current. In order to reduce effect of IR drop, we need to make these routes less resistive. Top metal layers are thicker and offer lesser resistance. This helps to reduce IR drop. Question 3.

vlsi cad engineer interview questions

Answer : Timing setup, hold, transitiondesign constraints, nets, noise, clock skew and analysis coverage. Question 4. Answer : Overlapping of macros. Channel spacing. Allowable IR drop. Question 5. Question 6. How Did You Fix Them? Answer : Metal Jumper and Antenna diode are two methods to resolve Antenna violations.

But Metal Jumper is preferred approach as it does not need change to the Netlist and placement. This methodology works for antenna violations on all metal layers except for the top most layer.

In this methodology, we will switch the small portion of routing to higher level metal close to the location of failing gate. This will make sure that accumulated charges on metal layer does not affect the gate as gate will not be connected to the charge carrying metal route until higher level metal is manufactured.

For example, lets say antenna violation is in M2. This means that M2 has enough area to accumulate large charge that induces high electron voltage to destroy the gate. To solve this problem, we cut a portion of M2 close to failing gate and move the routing to M3. This makes sure that when M2 is being manufactured, it does not get connected to gate.

Connection happens only when M3 gets manufactured which is much later in time. By then charges on Metal M2 would have leaked away. When metal jumper is not possible to implement probably due to routing congestion or violation happening in top most layer we try to fix it by inserting antenna diode closed to gate failing antenna. Antenna diode provide electrical path for safe conduction of accumulated charges to the substrate.Question 1.

Question 2. Give The Advantages Of Ic? Question 3. Question 4. Question 5.

VLSI Design Interview Questions & Answers

Question 6. Different Types Of Oxidation? Question 7. Question 8. Question 9. What Is Enhancement Mode Transistor? Answer : The device that is normally cut-off with zero gate bias.

Question What Is Depletion Mode Device? Answer : The Device that conduct with zero gate bias. Answer : If a large Vds is applied this voltage with deplete the Inversion layer. This Voltage effectively pinches off the channel near the drain. Answer : No Latch-up. Due to absence of bulks transistor structures are denser than bulk silicon.

What Is Bicmos Technology? Answer : Additional masks defining P base region:. Answer : To obtain the functional relationship among the terminal electrical variables of the device that is to be modeled. Define Short Channel Devices? Answer : Transistors with Channel length less than 3- 5 microns are termed as Short channel devices.

What Is Pulling Down Device? Answer : A device connected so as to pull the output voltage to the lower supply voltage usually 0V is called pull down device.

What Is Pulling Up Device? Answer : A device connected so as to pull the output voltage to the upper supply voltage usually VDD is called pull up device. What Is Stick Diagram? Answer : It is used to convey information through the use of color code. Also it is the cartoon of a chip layout.

Answer : It can be drawn much easier and faster than a complex layout. These are especially important tools for layout built from large cells.


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