Indium Oxide (In2O3)
Indium oxide (also known as indium sesquioxide, or In2O3) is a yellow colored powder. It is a stable ceramic-like material that is insoluble in water. Indium oxide is an n-type semiconductor and thus can be used as a resistive element in integrated circuits. It also is used to form heterojunctions with materials like p-InP, n-GaAs, n-Si, and other semiconductors.
Other applications include glass (as a color additive), alkaline batteries (to suppress gas formation), and high current electrical switches and contacts (as an anti-arcing additive).
Indium oxide can be doped with tin dioxide to form indium tin oxide (ITO). Please see here for more information on this important transparent conductive oxide (TCO) material.
Indium oxide is available in three forms:
- Type A (crystalline)
- Type B (fine, amorphous)
- Type T (recommended for sintered sputter target applications)
Indium Alloy Blog Posts
Have you ever had to choose something (a new computer, kitchen cabinets, eyeglasses) and had so many choices that you became overwhelmed and got analysis paralysis? You might feel that way when looking at our Solder Alloy Directory which has over 220 alloys. So many choices! So, how do…
Most people think of our alloys only in the ‘soldering’ sense. However, these same materials may be used in applications where they aren’t designed to melt and attach components. Four common uses for solder alloys that are not soldering applications are: Fusible plugs or links (these…
For this week’s World of Solder Preforms series installment, Brandon Judd explains the importance of reflow profiling: Solder preforms are a very common method of reducing voiding in a soldered device with larger X/Y dimensions. Compared to solder paste (which is approximately 50% flux by…
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