Practice - Common Etch Chemistries
Practice Questions
Test your understanding with targeted questions
What gas is typically used to etch SiO₂?
💡 Hint: Think about fluorinated compounds.
Which gas is used for etching Si₃N₄?
💡 Hint: Consider common gases with sulphur.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the typical gas used to etch SiO₂?
💡 Hint: Think about fluorinated gas chemistries.
True or False: Selectivity allows for the etching of one material while preserving others.
💡 Hint: Think about how layers interact during etching.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Analyze a scenario where an engineer used H₃PO₄ on SiO₂ instead of SF₆. Predict the outcome and explain the implications.
💡 Hint: Consider the properties of the chemicals.
Evaluate the interactions of using chlorine-based chemistry in an oxygen-rich environment for etching aluminum. What issues could arise?
💡 Hint: Think about how different chemicals can react together.
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Reference links
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