Good Choice Interview Questions and Answers

To control component dropping from nozzle, ensure proper maintenance, calibration, training of operators, and monitoring of process parameters.

• Regular maintenance of the nozzle to prevent wear and tear

• Calibration of the equipment to ensure accurate placement of components

• Training of operators on proper handling and adjustment of the machine

• Monitoring process parameters such as speed, pressure, and temperature to identify any deviations

• Implementing quality control measures to ...read more

3D AOI machines use height information to detect defects, while 2D AOI machines only use 2D images.

• 3D AOI machines use height information to detect defects, providing more accurate inspection results.

• 2D AOI machines only use 2D images, which may lead to missing defects that are not visible in 2D.

• 3D AOI machines are more expensive but offer higher precision and reliability compared to 2D AOI machines.

• Examples: 3D AOI machines like Koh Young or Mirtec, 2D AOI machines like Omro...read more

Ensuring defect-free product with detectable IC pin in coverage report

• Investigate the root cause of the detectable IC pin, such as design issue, manufacturing defect, or testing error

• Implement corrective actions based on the root cause analysis to address the issue

• Perform thorough testing and verification to ensure all IC pins meet the required quality standards

• Utilize advanced testing techniques like boundary scan testing to detect and resolve any potential issues with IC pi...read more

Poison test is used to determine the toxicity of a substance, while MSA (Measurement System Analysis) is used to assess the measurement system's capability and reliability.

• Poison test is conducted to determine the toxicity level of a substance, usually in the context of chemicals or drugs.

• MSA is performed to evaluate the measurement system's accuracy, precision, repeatability, and reproducibility.

• Poison test focuses on the harmful effects of a substance on living organisms, w...read more

MSA (Measurement System Analysis) plays a crucial role in ensuring the accuracy and reliability of measurement systems in a job work company.

• MSA helps in evaluating the measurement processes and equipment used in production.

• It ensures that the measurement systems are capable of providing accurate and consistent results.

• MSA helps in identifying and quantifying sources of variation in the measurement system.

• It assists in improving the quality of products by reducing measurement...read more

Yes, AOI machine stands for Automated Optical Inspection machine used in SMT process for quality control.

• AOI machine is used in Surface Mount Technology (SMT) process to inspect the quality of printed circuit boards (PCBs).

• It uses cameras and lighting to detect defects such as missing components, misalignment, soldering issues, etc.

• AOI machine helps in improving the quality and reliability of electronic products by identifying defects early in the manufacturing process.

• Exampl...read more

Defects detected in ICT machine include soldering issues, component placement errors, shorts, opens, and incorrect values.

• Soldering issues: incomplete or poor quality solder joints

• Component placement errors: components placed in the wrong location or orientation

• Shorts: unintended connections between two points causing a short circuit

• Opens: lack of connection between two points causing an open circuit

• Incorrect values: components or connections not meeting specified values or t...read more