Basic analog and digital questions Some amplifier based
Layout Engineer Interview Questions
427 layout engineer interview questions shared by candidates
Explain LVS net listing. Explain previous job role and challenges
1. What is antenna error? How to prevent antenna error? 2. What type of antenna diode placed for PMOS and NMOS device? What is antenna ratio? 3. How we can avoid the antenna without using jumper and antenna diode? 4. What kind of charges will have generated during plasma etching? How diode works? 5. Explain latch up? How guard ring avoids the latch up? In Guard ring we are using metal1, it has some resistance then how it will help to reduce the resistance. 6. How you create the latch up in inverter without having spike? 7. L=1um W=1um and L=10um W=10um sheet resistance is 1ohm find R? If 1um carries 1mA. How much current carries 10um width of metal? How it possible if both metals having same resistance.
Draw the layout of a circuit they put on the board
Talking about parasitics in the substrate.
More about silicon industry and layout design
Draw an inverter. Cross section, transistor level, layout level. Define drain, source, bulk, gate and what is it made from (i.e metal, poly.. etc)
Como se traduce tu experiencia laboral pasada al puesto ?
Digital electronics, Backend Vlsi design
The questions will be based on previous projects, technical basics and about challenging situations faced in previous roles.
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