Single Crystal Sapphire Products

Single Crystal Sapphire, composed of mono-crystallized alumina (Al2O3), is a transparent material with mechanical, thermal, optical and chemical properties exceeding those of other conventional transparent materials, including glass or quartz.

Industry's Choice
Sapphire is the most widely used material* for base substrates that support the crystal growth of blue, green, ultra-violet and white LEDs.
Sapphire is considered the optimal choice for GaN compound semiconductor processing due to its crystal growth capability and the fact that it can be mass-produced.
* Based on research conducted by Kyocera

Kyocera Sapphire Wafers
We offer a wide range of products including standard 2”, 3” and 4” wafer diameters in various crystal orientations such as C-, R-, A- and M-planes.
Custom orders for larger wafers (greater than 6”), super-flat wafers or special requests to improve LED brightness are also welcome.

The need for high-performance switching devices and modules used in multi-band cell phones continues to grow. As demand for lower-profile, higher-frequency, smaller-size and lower-loss electronic devices rises, technologies such as SOI (Silicon on Insulator) or SOS (Silicon on Sapphire) are receiving more attention.
Kyocera sapphire wafers are widely used in SOS wafer applications due to their high performance and ability to be mass-produced. Kyocera is also prepared to meet customer needs for features such as larger wafer sizes (greater than 8”), and enhanced particle suppression.

Kyocera’s sapphire material is utilized in a variety of semiconductor processing equipment. Its high purity (99.99%), plasma resistance, heat resistance and low particle generation make sapphire the ideal material for chamber components, end effectors, windows, wafer carriers, lift pins and fixtures. Its low dissipation factor also contributes to the improved performance of plasma generators.

Sapphire, traditionally known as a gemstone, has not been widely used as an industrial material until recently. Recognition of its advantages in diverse applications has grown as demand increases for technology to solve problems and enhance the performance of electronic devices and equipment. Blue LEDs are one such example.

Kyocera has a wide range of technologies to machine, assemble and coat sapphire into special shapes, or to add specific functions in response to customer requests. Examples include: