VLSI Technology Quiz

The p-type epitaxial layer grown over an n-type substrate for fabricating a bipolar transistor will function as?

• The emitter of a p-n-p transistor

• The collector of a p-n-p transistor

• The collector contact for a p-n-p transistor

• The base of an n-p-n transistor

An MSI chip contains____ components embedded on it.

• greater than 10000

• lesser than 10

• greater than 10 and less than 100

• lesser than 1000 and greater than 100

In the fabrication process, SiO2 acts as a/an?

• Isolation purpose

• Mask

• Insulator

• All of these

The purpose of Design for Test (DFT) process in ASIC design flow is?

• To capture functional errors

• To capture timing violations

• For radiation mitigation

• To capture manufacturing defects

What is the range of components in Medium Scale Integration (MSI)?

• 10,000 to 99,999

• 100 to 1000

• 10 to 100

• < 12

What does epitaxy refer to?

• The process of doping

• The isolation of transistors

• The deposition of an overlayer on a crystalline substrate

• The etching of silicon

Which of the following is NOT a scale of integration?

• Massive Scale Integration (MSI)

• Small-Scale Integration (SSI)

• Medium Scale Integration (MSI)

• Ultra Large Scale Integration (ULSI)

What is the primary function of SiO2 in semiconductor fabrication?

• To act as a hard mask for doping

• To enhance conductivity

• To increase thermal conductivity

• To serve as a substrate

Which technique is used in DFT to facilitate testing after fabrication?

• Scan path insertion

• Physical design

• Circuit simulation

• Logic synthesis

What is the primary benefit of using a p-type epitaxial layer over an n-type substrate?

• Reduced doping control

• Increased collector resistance

• Higher breakdown voltage

• Lower breakdown voltage