Flat Sapphire 4 Inch Blue LED GaN Epitaxial Wafer On Sapphire SSP
Flat Sapphire 4 Inch Blue LED GaN Epitaxial Wafer On Sapphire SSP
4 inch Blue LED GaN epitaxial wafer on sapphire SSP
The operation principle of LEDs is based on the semiconductor PN-junction. A PN-junction in a semiconductor is interface between two semiconductor regions of different doping. p-side is doped with acceptor impurities such as Boron which have one less valence electron compared to the semiconductor valence shell and N-side is doped with donor impurities such as Phosphorus which have one extra electron on valence shell compared to the semiconductor.
| 4inch GaN-on-Sapphire Blue/Green LED Wafer | ||||
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Substrate |
Type | Flat Sapphire |
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| Polish | Single side polished (SSP) / Double side polished (DSP) | |||
| Dimension | 100 ± 0.2 mm | |||
| Orientation | C plane (0001) off angle toward M-axis 0.2 ± 0.1° | |||
| Thickness | 650 ± 25 μm | |||
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Epilayer |
Structure | 0.2μm pGaN/0.5μm MQWs/2.5μm nGaN/2.0μm uGaN | ||
| Thickness | 5.5 ± 0.5μm | |||
| Roughness (Ra) | <0.5 nm | |||
| Dislocation density | < 5 × 108 cm-2 | |||
| Wavelength | Blue LED | Green LED | ||
| 465 ± 10 nm | 525 ± 10 nm | |||
| Wavelength FWHMs | < 25 nm | < 40 nm | ||
| Chip Performance | Cut-in voltage@1μA | 2.3-2.5V | 2.2-2.4V | |
| Useable Area | > 90% (edge and macro defects exclusion) | |||
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Package |
Packaged in a cleanroom in a single wafer container |
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We specialize in processing a variety of materials into wafers, substrates and customized optical glass parts.components widely used in electronics, optics, opto electronics and many other fields. We also have been working closely with many domestic and oversea universities, research institutions and companies, provide customized products and services for their R&D projects. It's our vision to maintaining a good relationship of cooperation with our all customers by our good reputations.
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or it is 7-10 days if the goods are not in stock, it is according to quantity.
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Paymen >=5000USD, 80% T/T in advance , balance before shippment.
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