We have thousands of polished substrates in stock for immediate delivery.  We can also offer many other crystals not listed here.  Metal crystals, oxides, fluorides and others.

Just fill out the fast request form for a quick response.

• Magnesium Aluminate
• Zinc Oxide
• Silicon Carbide
• Lithium Aluminate
• Lithium Gallate
• Nickel Aluminate

Typical Properties of Single Crystals Substrates for III-V Nitride Films             

Crystal	Structure	Lattice a	Constant b	A c	TE Coeff. (10-ºK )	Lattice mismatch to GaN	Wafer Max Size
Al2O3	Hexag.	4.758	----	12.99	7.50	14% <0001>	6" dia
MgO	Cubic	4.216	----	----	12.8	13% <111>	3" dia
MgAl2O4	Cubic	8.083	----	----	7.45	9% <111>	1.5" dia
ZnO	Hexag.	3.252	----	5.213	2.90	2.2% <0001>	10x10mm
SiC(6H)	Hexag.	3.08	----	15.12	10.3	3.5% <0001>	10x10mm
LiAlO2	Tantra	5.17	----	6.26	----	1.4% <100>	30mm dia
LiGaO2	Orthor.	5.406	5.012	6.379	----	0.2%  <100>	30mm dia
NiAl (new)	Cubic	2.880	----	----	----	10%  <100>	20mm dia

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