What are some common HW interview questions?

What is a virtual function 😂😂 . Probably every company I have interviewed with has asked this.

For RTL design engineers( pretty basic phone interview questions) - Async fifo design - State Machine questions - Setup and Hold Knowledge

For camera: -describe the path of light from entering the lens to an image being rendered on screen -how does a CMOS work? -describe the functionality of the major imaging algorithms (AWB AE AF etc) -what hardware factors chiefly influence image quality? Etc

CDC, Sequence detector FSM, Blocking non-blocking assignment difference, fork-join

Any backend VLSI position. Setup Time Hold Time recovery time removal time dynamic and static timing analysis statistical static timing analysis and deterministic STA slacks,jitters and skews PVT variations On chip variation AOCV, POCV Path based approximation and Graph based approximation clock borrowing and multi cycle paths clock domain crossing and techniques clock gating and clock uncertainity CRPR PVT/RC corner and Parasitics crosstalk, agressor-victim effects, signal integrity ETM/QTM/ILM.dbs SDF files and how to interpret them Noise margins

What's FIB.

How would you design a human mind? Was asked this at SpaceX

Priority encoder Fsm state machine questions of detecting a pattern like 1101 One hot encoding for FIFO Gray coding.

General high level stuff.. STA , CDC. CMOS basics, Digital Design, ASIC & FPGA design flow, Synthesis and PnR constraints, RTL debugging, netlist generation & simulation, board level debug, Low power techniques, Design for X, DFT, State Mcs, Scripting, HDL, HVL, Computer Architecture, UVM/OVM, ON CHIP and OFF CHIP protocols (AHB, AXI, CHI,...) (PCIe, DDR, Ethernet, CAN), PCB design related, SI related , Version control, sometimes AGILE and 6 sigma... Each of above topics has multiple sub topics... need to know basics of it all.. and then specialize in few things from above...