Semicera’s 10x10mm Nonpolar M-plane Aluminum Substrate is meticulously designed to meet the exacting requirements of advanced optoelectronic applications. This substrate features a nonpolar M-plane orientation, which is critical for reducing polarization effects in devices such as LEDs and laser diodes, leading to enhanced performance and efficiency.
The 10x10mm Nonpolar M-plane Aluminum Substrate is crafted with exceptional crystalline quality, ensuring minimal defect densities and superior structural integrity. This makes it an ideal choice for the epitaxial growth of high-quality III-nitride films, which are essential for the development of next-generation optoelectronic devices.
Semicera’s precision engineering ensures that each 10x10mm Nonpolar M-plane Aluminum Substrate offers consistent thickness and surface flatness, which are crucial for uniform film deposition and device fabrication. Additionally, the substrate’s compact size makes it suitable for both research and production environments, allowing for flexible use in a variety of applications. With its excellent thermal and chemical stability, this substrate provides a reliable foundation for the development of cutting-edge optoelectronic technologies.
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Items |
Production |
Research |
Dummy |
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Crystal Parameters |
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Polytype |
4H |
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Surface orientation error |
<11-20 >4±0.15° |
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Electrical Parameters |
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Dopant |
n-type Nitrogen |
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Resistivity |
0.015-0.025ohm·cm |
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Mechanical Parameters |
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Diameter |
150.0±0.2mm |
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Thickness |
350±25 μm |
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Primary flat orientation |
[1-100]±5° |
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Primary flat length |
47.5±1.5mm |
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Secondary flat |
None |
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TTV |
≤5 μm |
≤10 μm |
≤15 μm |
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LTV |
≤3 μm(5mm*5mm) |
≤5 μm(5mm*5mm) |
≤10 μm(5mm*5mm) |
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Bow |
-15μm ~ 15μm |
-35μm ~ 35μm |
-45μm ~ 45μm |
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Warp |
≤35 μm |
≤45 μm |
≤55 μm |
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Front(Si-face) roughness(AFM) |
Ra≤0.2nm (5μm*5μm) |
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Structure |
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Micropipe density |
<1 ea/cm2 |
<10 ea/cm2 |
<15 ea/cm2 |
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Metal impurities |
≤5E10atoms/cm2 |
NA |
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BPD |
≤1500 ea/cm2 |
≤3000 ea/cm2 |
NA |
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TSD |
≤500 ea/cm2 |
≤1000 ea/cm2 |
NA |
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Front Quality |
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Front |
Si |
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Surface finish |
Si-face CMP |
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Particles |
≤60ea/wafer (size≥0.3μm) |
NA |
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Scratches |
≤5ea/mm. Cumulative length ≤Diameter |
Cumulative length≤2*Diameter |
NA |
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Orange peel/pits/stains/striations/ cracks/contamination |
None |
NA |
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Edge chips/indents/fracture/hex plates |
None |
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Polytype areas |
None |
Cumulative area≤20% |
Cumulative area≤30% |
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Front laser marking |
None |
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Back Quality |
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Back finish |
C-face CMP |
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Scratches |
≤5ea/mm,Cumulative length≤2*Diameter |
NA |
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Back defects (edge chips/indents) |
None |
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Back roughness |
Ra≤0.2nm (5μm*5μm) |
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Back laser marking |
1 mm (from top edge) |
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Edge |
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Edge |
Chamfer |
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Packaging |
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Packaging |
Epi-ready with vacuum packaging Multi-wafer cassette packaging |
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*Notes： "NA" means no request Items not mentioned may refer to SEMI-STD. |
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