5 x 10mm2 Free-standing GaN Substrates 350 ±25 µm From 1 x 105 to 3 x 106 cm-2
5*10mm2 SP-face (20-21)/(20-2-1) Un-doped SI-type free-standing GaN single crystal substrate Resistivity > 106 Ω·cm RF devices wafer
Overview
There are three main substrates that are used with GaN - Silicon Carbide (SiC), Silicon (Si) and Diamond. GaN on SiC is the most common of the three and has been used in various applications in the Military and for High Power Wireless Infrastructure Applications. GaN on Si is a newer substrate whose performance is not as good as SiC but it is more economical. GaN on Diamond is the best performing, however since it is new and relatively expensive, applications, where this has been used, are limited. We have compared all three GaN Substrates in the table below.
| (20-21)/(20-2-1) face Free-standing GaN Substrates |
| Item | GaN-FS-SP-U-S | GaN-FS-SP-N-S | GaN-FS-SP-SI-S | 
Remarks: A circular arc angle (R < 2 mm) is used for distinguishing the front and back surface. |
| Dimensions | 5 x 10 mm2 |
| Thickness | 350 ±25 µm |
| Orientation | (20-21)/(20-2- 1) plane off angle toward A-axis 0 ±0.5° (20-21)/(20-2- 1) plane off angle toward C-axis - 1 ±0.2° |
| Conduction Type | N-type | N-type | Semi-Insulating |
| Resistivity (300K) | < 0.1 Ω·cm | < 0.05 Ω·cm | > 106 Ω·cm |
| TTV | ≤ 10 µm |
| BOW | - 10 µm ≤ BOW ≤ 10 µm |
| Front Surface Roughness | < 0.2 nm (polished)； or < 0.3 nm (polished and surface treatment for epitaxy) |
| Back Surface Roughness | 0.5 ~1.5 μm option: 1~3 nm (fine ground); < 0.2 nm (polished) |
| Dislocation Density | From 1 x 105 to 3 x 106 cm-2 |
| Macro Defect Density | 0 cm-2 |
| Useable Area | > 90% (edge exclusion) |
| Package | Packaged in a class 100 clean room environment, in 6 PCS container, under a nitrogen atmosphere |
Appendix: The diagram of miscut angle
If δ1= 0 ±0.5°, then (20-21)/(20-2- 1) plane off angle toward A-Axis is 0 ±0.5°.
If δ2= - 1 ±0.2°, then (20-21)/(20-2- 1) plane off angle toward C-Axis is - 1 ±0.2°.
About Us
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FAQ
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We are factory.
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Generally it is 3-5 days if the goods are in stock.
or it is 7-10 days if the goods are not in stock, it is according to quantity.
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Yes, we could offer the sample for free charge but do not pay the cost of freight.
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Payment <=5000USD, 100% in advance.
Paymen >=5000USD, 80% T/T in advance , balance before shippment.
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SP Face 5 X 10mm2 Gallium Nitride Substrate 350um Images
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