Oxides in semiconductor technology.

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SUMMARY

The discussion centers on the distinctions between "good" and "bad" oxides in semiconductor technology, emphasizing that these classifications depend on the application and the specific materials involved. A "good" oxide, such as aluminum oxide (Al2O3), serves beneficial roles like protecting devices from contamination and acting as a dielectric. Conversely, a "bad" oxide can negatively impact device efficiency and longevity through corrosion or reduced conductivity. Context is crucial in determining the suitability of an oxide for a given application.

PREREQUISITES
  • Understanding of semiconductor materials and their properties
  • Familiarity with aluminum oxide (Al2O3) and its applications
  • Knowledge of dielectric materials in electronics
  • Awareness of corrosion effects on semiconductor devices
NEXT STEPS
  • Research the role of aluminum oxide (Al2O3) in semiconductor applications
  • Explore the effects of oxide layers on device performance
  • Learn about dielectric materials and their functions in electronics
  • Investigate corrosion mechanisms in semiconductor devices
USEFUL FOR

This discussion is beneficial for semiconductor engineers, materials scientists, and anyone involved in the design and optimization of electronic devices that utilize oxide layers.

izzor
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What is the difference between a "good" and a "bad" oxide?
 
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izzor said:
What is the difference between a "good" and a "bad" oxide?
It depends on the application and the material and whether you mean the native oxide or deliberately depositied oxides. A 'bad' oxide would be something harmful to the efficiency or lifetime etc. of the device. A good oxide would provide some beneficial effect, such as protecting the device from atmospheric contamination or acting as a dielectric,
 
izzor said:
What is the difference between a "good" and a "bad" oxide?

This is rather vague without proper context. You also shouldn't be lazy in writing a bit more than just this terse sentence.

Take a look at an "aluminum oxide". Do you think it is bad? What if I say that Al2O3 (also called alumina, which is technically an aluminum oxide) is one of the most useful substance around. Or what about a metal oxide layer that is used as an insulating barrier, especially in tunnel junctions?

But an oxide can also corrode, reduced conduction and electrical contacts, etc...

In other words, pay attention to what you want to do and what things are being used for.

Zz.
 
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