10+ Failure Analysis Engineer Interview Questions and Answers

I identified the root cause by conducting thorough analysis using tools such as fishbone diagram, 5 Whys, and failure mode and effects analysis (FMEA).

• Conducted a detailed investigation into the issue to gather relevant data and information

• Utilized tools such as fishbone diagram to visually map out potential causes of the problem

• Implemented the 5 Whys technique to repeatedly ask 'why' until the root cause was uncovered

• Performed failure mode and effects analysis (FMEA) to prio...read more

Whisker charts in Excel show variability and distribution of data points in a dataset.

• Whisker charts are also known as box and whisker plots.

• They display the minimum, maximum, median, and quartiles of a dataset.

• Whisker charts are useful for identifying outliers and understanding the spread of data.

• They are commonly used in statistical analysis and quality control.

• Example: Creating a whisker chart in Excel to analyze the distribution of test scores in a class.

Issues in capacitive touch screens include ghost touches, dead zones, and sensitivity problems.

• Ghost touches: When the screen registers touches without any physical contact.

• Dead zones: Areas on the screen where touch inputs are not recognized.

• Sensitivity problems: Inconsistent or inaccurate response to touch inputs.

• Interference from external factors like water or dirt can also affect performance.

Challenges in AMOLED display include burn-in, color accuracy, lifespan, and production costs.

• Burn-in: Image retention on screen over time

• Color accuracy: Ensuring accurate and consistent colors

• Lifespan: Degradation of organic materials affecting longevity

• Production costs: Expensive manufacturing process

If Cp is 0.8, the process is not capable of meeting the specified requirements consistently.

• Process may produce a high number of defects or errors.

• Variability in the process output may be too high.

• Quality control measures may need to be improved.

• Example: If Cp is 0.8 for a manufacturing process, it means the process is not capable of producing parts within the specified tolerances consistently.

RF analysis is a process of examining and evaluating the performance of radio frequency systems.

• RF analysis involves measuring and analyzing the frequency, power, and modulation of radio signals.

• It is used to identify and troubleshoot issues in wireless communication systems.

• RF analysis can be performed using specialized equipment such as spectrum analyzers and signal generators.

• Examples of RF analysis applications include testing the performance of wireless networks, identif...read more

Quality tools on Excel help analyze data for identifying and solving quality issues.

• Use Pareto charts to identify the most significant quality issues

• Utilize control charts to monitor process stability and identify trends

• Perform root cause analysis using fishbone diagrams

• Use scatter plots to identify correlations between variables

• Utilize histograms to visualize distribution of data

The product being analyzed for failure is a consumer electronic device.

• Identify the specific component or system that failed

• Analyze the design and manufacturing process of the product

• Consider environmental factors that may have contributed to the failure

• Review any previous failure reports or customer complaints

• Perform testing and simulations to replicate the failure

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