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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is etch selectivity?
💡 Hint: Think about how materials react during an etching process.
Question 2
Easy
Why is the surface sensitivity of GaAs a concern?
💡 Hint: Consider what happens to metals when they oxidize.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the purpose of an etch stop layer in compound semiconductors?
- To enhance the electrical properties of the substrate
- To prevent damage to underlying layers during etching
- To increase the speed of the etching process
💡 Hint: Think about why we'd want to stop etching at a certain point.
Question 2
True or False: Higher resist bake temperatures are generally preferred when working with InP.
- True
- False
💡 Hint: Consider what happens when you apply too much heat.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a situation where a device fabricated from GaAs fails due to loss of electrical properties, analyze the potential causes focusing on etch considerations.
💡 Hint: Reflect on the importance of preserving material stability during fabrication.
Question 2
You are tasked to design an etching process for a new compound semiconductor. How would you address surface sensitivity and thermal constraints?
💡 Hint: Consider the environmental conditions that materials require for preservation.
Challenge and get performance evaluation