Kyma Technologies offers a wide variety of crystalline substrate and template materials and related materials such as sapphire placeholder wafers. We can also work with you to develop just the right solution for your project.

Below is a list of our standard material offerings and accessories. Please contact us for pricing or visit our on-line store.

AlGaN Templates

Kyma’s AlGaN templates consist of a thin layer of crystalline AlGaN grown by HVPE on c-plane sapphire substrates and provide a high-quality AlGaN surface for subsequent device epitaxy.

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Gallium Nitride (GaN) Templates

Kyma’s GaN templates are available in diameters up to 150mm (check back as 200mm diameter is coming soon!) and consist of a thin layer of crystalline GaN grown epitaxially by HVPE on a non-GaN substrate such as sapphire or silicon. For most of Kyma's GaN templates Kyma employs a patent-protected thin intermediate layer of crystalline PVDNC™ AlN between the GaN and the non-GaN substrate which serves as an excellent nucleation layer for GaN overgrowth.

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Sapphire Comparison Geometry Wafer

Kyma offers Sapphire Comparison Geometry Wafers. The Comparison Geometry Wafer enables analysis of edge and heating effects of substrates while maintaining efficient use of production material substrates. 

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Sapphire Placeholder Wafers

Kyma offers Sapphire Placeholder Wafers that have the central portion of the wafer removed to facilitate square wafer loading in round pocket platters.

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