Answer Posted / amar

ASIC design flow:
Stands for Application specific integrated circuit.

This kind of design flow has been completely automated
with few manual steps

Below is the flow

1 ] system level specification
2 ]RTL coding and simulation

2 ] netlist synthesis , dft scan insertion ---> DFT ATPG,
STA,GLS can be run in this stage

3 ] physical design process
netlist extraction with actual parasitics
sign off STA , GLS , Power analysis will be done here

GDS2 ----> Manufacturer

In ASIC , We use standard cells which are predesigned and
pre verified cells created as library from where physical
design tools will choose the correct cell to place and route.

Comapre and contrast this with Custom IC design where we do
not have so much automation , and also we do not use
standard cells instead custom cells are created for use in
custom IC design

What transistor level design tools are you proficient with? What types of designs were they used on?

5066

---

Explain the working of Insights of an inverter ?

1254

---

Explain what is slack?

1061

---

What are the different design constraints occur in the synthesis phase?

1101

---

In the design of a large inverter, why do we prefer to connect small transistors in parallel (thus increasing effective width) rather than lay out one transistor with large width?

1190

---

Draw a CMOS Inverter. Explain its transfer characteristics

1181

---

What is the difference between synchronous and asynchronous reset?

1090

---

What are the steps required to solve setup and hold violations in vlsi?

1087

---

If an/ap = 0.5, an/ap = 1, an/ap = 3, for 3 inverters draw the transfer characteristics?

2500

---

Draw the SRAM Write Circuitry

1186

---

Differences between IRSIM and SPICE?

5434

---

Draw the Layout of an Inverter?

2503

---

How binary number can give a signal or convert into a digital signal?

1229

---

What is Body Effect?

2515

---

why is the number of gate inputs to CMOS gates usually limited to four?

1337

---