HCLTech
Experis IT Interview Questions and Answers
Q1. What is the minimum clearance for DDR Data group signals Routing?
The minimum clearance for DDR Data group signals Routing is 6 mils.
DDR Data group signals Routing requires a minimum clearance of 6 mils to avoid crosstalk and interference.
The clearance may vary depending on the specific DDR standard being used.
It is important to follow the recommended guidelines provided by the DDR manufacturer.
Failure to meet the minimum clearance requirements can result in signal integrity issues and data corruption.
Examples of DDR standards include DDR2,...read more
Q2. What is operating frequency of USB Type C?
The operating frequency of USB Type C is 10 Gbps.
USB Type C has a maximum data transfer rate of 10 Gbps
It is also backward compatible with USB 2.0 and 3.0
The frequency can vary depending on the device and cable used
Q3. How can you define micro vias in PCB board?
Micro vias are small holes drilled in PCBs to connect different layers of the board.
Micro vias are typically less than 0.15mm in diameter.
They are used to save space on the board and increase routing density.
Micro vias can be drilled using lasers or mechanical drills.
They are commonly used in high-density interconnect (HDI) PCBs.
Micro vias can be filled with conductive or non-conductive materials.
They can be blind vias, which connect an outer layer to an inner layer, or burie...read more
Q4. What is operating frequency of DDR 4
The operating frequency of DDR4 is 2133 MHz to 4266 MHz.
DDR4 operates at higher frequencies than its predecessor DDR3
The operating frequency of DDR4 depends on the specific module and its configuration
DDR4 can operate at frequencies ranging from 2133 MHz to 4266 MHz
Higher frequency modules tend to be more expensive
Q5. What type of PCie connector used in your project
We used PCIe Gen3 x16 connector in our project.
PCIe Gen3 x16 connector provides high-speed data transfer.
It has 16 lanes for data transmission.
It is commonly used in high-performance graphics cards and storage devices.
It has a maximum bandwidth of 32 GB/s.
Examples of devices that use PCIe Gen3 x16 connector are NVIDIA GeForce GTX 1080 Ti and Samsung 970 PRO SSD.
Q6. What type of signals available in DDR
DDR signals include command, address, data, clock, and control signals.
DDR stands for Double Data Rate, which means data is transferred twice per clock cycle.
Command signals are used to initiate operations like read, write, and refresh.
Address signals specify the location of data in memory.
Data signals carry the actual data being transferred.
Clock signals synchronize the timing of all the signals.
Control signals include chip select, data strobe, and write enable signals.
DDR4 ...read more
Q7. What is Open Drain and Open Source
Open drain is a type of output circuitry used in digital electronics. Open source refers to software that is freely available to use and modify.
Open drain is a type of output circuitry where the output transistor is connected to ground instead of a voltage source.
Open drain outputs are commonly used in digital circuits to interface with other devices or circuits.
Open source refers to software that is freely available to use, modify, and distribute.
Open source software is ofte...read more
Q8. What is Fine pitch BGA
Fine pitch BGA refers to a Ball Grid Array (BGA) package with a small distance between the center of one ball to the center of the next ball.
Fine pitch BGA has a pitch of less than 1.0 mm.
It is commonly used in high-density applications such as microprocessors, memory chips, and graphics processors.
Fine pitch BGA requires precise manufacturing techniques and careful handling during assembly and rework.
Examples of fine pitch BGA include Intel's Pentium 4 processor and NVIDIA's...read more
Interview Process at Experis IT
Top Hardware Design Engineer Interview Questions from Similar Companies
Reviews
Interviews
Salaries
Users/Month