Infosys Certified Semicon Associate
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Join Premium10 Infosys Certified Semicon Associate practice questions with answers
Real Lex exam-pattern multiple-choice questions for the Infosys Certified Semicon Associate certification. Each question includes the correct answer. The full question bank is available to Premium members.
- Question 1
What is the primary objective of the oxidation process during the manufacturing of integrated circuits?
- ✓To create intricate patterns on the silicon wafer's surface.Correct
- BTo deposit a thin film of metal onto the wafer, facilitating electrical connections.
- CTo introduce dopant atoms into the silicon lattice, altering its electrical properties.
- DTo form a precisely controlled layer of silicon dioxide (SiO2) on the wafer.
- Question 2
Imagine a scenario where the oxidation process creates an oxide layer that is too thin. What potential problems could arise?
- ✓Increased conductivity and short circuitsCorrect
- BImproved performance and higher chip speeds
- CReduced insulation and leakage currents
- DNo significant impact on chip functionality
- Question 3
Dry etching primarily relies on which of the following for material removal?
- ✓Direct application of a corrosive liquidCorrect
- BBombardment with reactive ionized gases
- CPrecisely controlled electrochemical reactions
- DFriction from a polishing surface
- Question 4
In contrast to wet etching, dry etching typically utilizes:
- ✓Liquid etchantsCorrect
- BPlasma
- CMechanical force
- DHigh temperatures
- Question 5
Which of the following is NOT a method used in etching?
- ✓Electrochemical electrolysisCorrect
- BChemical corrosion
- CMechanical polishing
- DVapor deposition
- Question 6
What is the chemical composition of the oxide layer grown during the oxidation process?
- ✓Silicon nitride (Si3N4)Correct
- BSilicon carbide (SiC)
- CSilicon dioxide (SiO2)
- DPure silicon (Si)
- Question 7
What are the two primary types of etching processes used in the industry?
- ✓Thermal and chemical etchingCorrect
- BWet etching and dry etching
- CVerifying the functionality of the chip
- DPhysical and mechanical etching
- Question 8
Which of the following is a key difference between wet and dry etching?
- ✓Wet etching is always faster than dry etching.Correct
- BWet etching uses liquid chemicals, while dry etching uses plasma.
- CDry etching is only used for metals, while wet etching is used for semiconductors.
- DWet etching is more precise than dry etching for all applications.
- Question 9
Which of the following statements about etching processes is MOST accurate?
- ✓Etching is only used in the semiconductor industry.Correct
- BDry etching is always the preferred method due to its higher precision.
- CWet etching is environmentally friendly, while dry etching is not.
- DEtching can be used to remove various materials, including metals, dielectrics, and polymers.
- Question 10
What does the developer solution remove during photolithography?
- ✓Exposed siliconCorrect
- BUnexposed photoresist
- CAll photoresist
- DExposed photoresist
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