Practice - Key Considerations
Practice Questions
Test your understanding with targeted questions
What is etch selectivity?
💡 Hint: Think about how materials react during an etching process.
Why is the surface sensitivity of GaAs a concern?
💡 Hint: Consider what happens to metals when they oxidize.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of an etch stop layer in compound semiconductors?
💡 Hint: Think about why we'd want to stop etching at a certain point.
True or False: Higher resist bake temperatures are generally preferred when working with InP.
💡 Hint: Consider what happens when you apply too much heat.
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Challenge Problems
Push your limits with advanced challenges
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.
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.
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Reference links
Supplementary resources to enhance your learning experience.