* Basic circuits
- RC circuits - Capacitor charge and discharge time
- RLC circuits - Resonant frequency, Damping factor, Quality factor
- KVL, KCL rules
- Wire design: Resistance/square, capacitance
* MOS transistors
- Voltage transfer curves
- NFET vs PFET tranistors
- Modes of operation of transistors
- Logic families: pass gates, transmission gates, complimentary cmos, domino logic, nora logic
* Complementary MOS digital design
- The inverter
- Logical Effort sizing
- Logic gate design: and/or/xor and so on
- Charge sharing
- Memory state elements: latches (SR, D, T, flipflops)
- SRAM and ROM design
* Static Timing analysis
- Rise time
- Fall time
- setup time
-hold time
- clock skew
- clock jitter
- Power IR drop
- Monte carlo simulations
- Process cornern analysis
* Verilog
- Blocking vs non. blocking
- Combinational feedback loop (avoidance)
- Latch design
- SRAM, ROM Memory design
- Mealy and Moore State machine design
* Layout design
- DRC rules
- LVS test
- Basic CMOS manufacturing, DFM (Design for Manufacturability)
* Mixed signal design (unlikely)
- ESD protection circuits
- Filters using OpAMPS
- OpAmps
- ADCs
In Amazon there is a book: VLSI interview questions. It might help you:
https://www.amazon.com/VLSI-Interview-Questions-Answers-Sony-ebook/dp/B007BS01GW
Good Luck,