Specialty Silicon Wafer Products and materials
NOVA is a one stop shop and has been providing the best specialty wafer products for years.
We offer products such as:
Sapphire Substrates
Synthetic Sapphire is an aluminum oxide material grown in a hexagonal crystalline form.
It's very hard material with a high resistance to heat. Because of its crystalline
structure, material characteristics can change depending upon the requested orientation.
NOVA offers CNC mill drill, lapped or polished Sapphire in many sizes, shapes, and
surface finishes.
Sapphire is highly inert and resistant to attack in most process environments including
hydrofluoric acid and the fluorine plasma applications commonly found in semiconductor
wafer processing (NF3, CF4). Optical transmission ranges from
below 0.2 microns, to over 4 microns, combined with the favorable chemical durability,
wear resistance, strength, and high temperature performance enables the use of sapphire
in windows and sensor optics in high performance vacuum systems, furnaces, and other
optical applications.
Standard Monocrystalline Sapphire Wafer
| Orientation | <0001>, <1120>, <1102>, <1010> C-plane , A-plane , R-plane , M-plane |
| Tolerance Of Orientation | ± 0.5 ° |
| Size | 10 x 10 mm, 20 x 20 mm, 30 x 30 mm 2" , 3" , 4" Other sizes available upon request |
| Thickness | 330 um, 430 um, 0.5 mm or 1 mm |
| Surface Finish | one side or two sides polished |
| Surface Roughness | Ra <= 10 A |
SOS - Silicon-On-Sapphire; special case of SOI where an active Si layer is
formed on top of a sapphire substrate (an insulator) by means of epitaxial deposition;
due to a slight lattice mismatch between Si and sapphire, Si epitaxial layers larger
than the critical thickness have a high defect density.
Germanium (Ge)
Alumina (Al2O3)
Aluminum Nitride
Zinc Sulfide (ZnS)
Zinc Selenide (ZnSe)
Silicon Carbide (SiC)
Si-Si Direct, Bonded SOI - SOI substrate formed by bonding two silicon
wafers with oxidized surfaces such that one wafer is formed with an oxide layer
sandwiched between two layers of Si; one wafer is subsequently polished down to a
specified thickness to form an active layer where devices will be fabricated.
The above items are specialized and are not in our current inventory, but we can obtain
the material you need. Please complete our REQUEST A QUOTE
form and we will help you meet your requirements.
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