10+ Post Silicon Validation Engineer Interview Questions and Answers

Use a flip-flop to divide the frequency by 2.

• Use a D flip-flop with the input connected to the clock signal and the output connected back to the D input.

• The output frequency will be half of the input frequency (25MHz).

RAM is volatile memory that stores data temporarily, while ROM is non-volatile memory that stores data permanently.

• RAM stands for Random Access Memory and is used for temporary storage of data that can be read and written to.

• ROM stands for Read-Only Memory and is used for permanent storage of data that can only be read from.

• RAM loses its data when power is turned off, while ROM retains its data even when power is off.

• Examples of RAM include DRAM and SRAM, while examples of RO...read more

PN meter measures the concentration of dopants in a semiconductor material. DSO is a digital storage oscilloscope used for signal analysis. DMM is a digital multimeter for measuring voltage, current, and resistance. Power supply provides electrical power to devices.

• PN meter measures dopant concentration in semiconductors

• DSO is used for signal analysis

• DMM measures voltage, current, and resistance

• Power supply provides electrical power

BIOS stands for Basic Input/Output System, a firmware used to perform hardware initialization during the booting process of a computer system.

• BIOS is a firmware that is stored on a chip on the computer's motherboard.

• It is responsible for initializing and testing hardware components during the boot process.

• BIOS provides the necessary instructions for the computer to start up and load the operating system.

• It also provides a setup utility for configuring hardware settings.

• Exampl...read more

Op amp stands for operational amplifier, used in various electronic circuits for amplification, filtering, signal conditioning, etc.

• Op amp is a high-gain electronic voltage amplifier with differential inputs and single output.

• It is commonly used in audio amplifiers, signal conditioning circuits, filters, oscillators, etc.

• Op amps can be used in instrumentation amplifiers, voltage followers, integrators, differentiators, etc.

• Examples of op amp ICs include LM741, LM358, AD822, e...read more

My expected CTC is negotiable based on the role, responsibilities, and benefits offered.

• My expected CTC is based on industry standards and my level of experience.

• I am open to discussing the compensation package during the interview process.

• I am looking for a competitive salary that reflects my skills and contributions to the team.

Sync reset is synchronized with clock signal while async reset is not synchronized.

• Sync reset is asserted/deasserted at a specific clock edge

• Async reset is independent of clock signal

• Sync reset is used in sequential circuits like flip-flops

• Async reset is used in combinational circuits like logic gates

Clipper with the help of opamp is a technique used to limit the output voltage of a signal.

• Clipper circuit is used to limit the voltage level of a signal by clipping off the peaks.

• Opamp (operational amplifier) is a high-gain electronic amplifier used to amplify and manipulate signals.

• By combining a clipper circuit with an opamp, the opamp can be used to control the clipping level and shape the output signal.

• The opamp can be configured in different ways, such as inverting or n...read more

A clamper circuit is used to shift the DC level of a signal.

• A clamper circuit consists of a diode and a capacitor.

• It is used to add or subtract a DC voltage to a signal.

• The transistor can be used in a clamper circuit to control the clamping voltage.

• The transistor acts as a switch to control the charging and discharging of the capacitor.

• Example: A clamper circuit with a transistor can be used to shift the DC level of an audio signal to match the input requirements of an amplif...read more

A clamper circuit is used to shift the DC level of a signal without changing its shape.

• Positive Clamper: shifts the DC level of the input signal to a higher level

• Negative Clamper: shifts the DC level of the input signal to a lower level

• Biased Clamper: shifts the DC level of the input signal to a desired level using a biasing voltage

• Diode Clamper: uses diodes to clamp the input signal to a specific DC level

The random function generates a random number within a specified range.

• The random function is commonly used in programming to introduce randomness into a program.

• It can be used to simulate unpredictable events or generate random data for testing purposes.

SPI and I2C are communication protocols used for connecting microcontrollers and peripheral devices.

• SPI (Serial Peripheral Interface) is a synchronous serial communication protocol commonly used for connecting microcontrollers to peripherals like sensors, displays, and memory chips.

• I2C (Inter-Integrated Circuit) is a multi-master, multi-slave serial communication protocol commonly used for connecting microcontrollers to sensors, EEPROMs, and other integrated circuits.

• SPI uses...read more

Designed a smart irrigation system using IoT technology for Btech final project.

• Implemented sensors to measure soil moisture levels

• Utilized microcontrollers to control water flow based on sensor data

• Developed a mobile app for remote monitoring and control

MB cells advantage lies in their ability to provide high accuracy and efficiency in post silicon validation testing.

• MB cells offer high accuracy in detecting defects in silicon chips

• They provide efficient testing solutions for post silicon validation

• MB cells help in identifying and resolving issues in the design and manufacturing process