描述: 蓝宝石(Sapphire,又称白宝石,分子式为Al2O3)单晶是一种优秀的多功能材料。它耐高温,导热好,硬度高,透红外,化学稳定性好。广泛用于工业、国防和科研的多个领域(如耐高温红外窗口等)。同时它也是一种用途广泛的单晶基片材料,是当前蓝、紫、白光发光二极管(LED)和蓝光激光器(LD)工业的**基片(需**在蓝宝石基片上外延氮化镓薄膜),也是重要的超导薄膜基片。
1.常规蓝宝石晶片
Crystal Materials |
99,996% of Al2O3,High Purity, Monocrystalline, Al2O3 |
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Crystal quality |
Inclusions, block marks, twins, Color, micro-bubbles and dispersal centers are non-existent |
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Diameter |
2inch |
3inch |
4inch |
5inch ~ 7inch |
50.8± 0.1mm |
76.2±0.2mm |
100±0.3mm |
In accordance with the provisions of standard production |
|
Thickness |
430±15µm |
550±15µm |
650±20µm |
Can be customized by customer |
Orientation |
C- plane (0001) to M-plane (1-100) or A-plane(1 1-2 0) 0.2±0.1° /0.3±0.1°, R-plane (1-1 0 2), A-plane (1 1-2 0 ), M-plane(1-1 0 0), Any Orientation , Any angle |
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Primary flat length |
16.0±1mm |
22.0±1.0mm |
32.5±1.5 mm |
In accordance with the provisions of standard production |
Primary flat Orientation |
A-plane (1 1-2 0 ) ± 0.2° |
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TTV |
≤10µm |
≤15µm |
≤20µm |
≤30µm |
LTV |
≤10µm |
≤15µm |
≤20µm |
≤30µm |
TIR |
≤10µm |
≤15µm |
≤20µm |
≤30µm |
BOW |
≤10µm |
≤15µm |
≤20µm |
≤30µm |
Warp |
≤10µm |
≤15µm |
≤20µm |
≤30µm |
Front Surface |
Epi-Polished (Ra< 0.2nm) |
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Back Surface |
Fine ground (Ra=0.5 to 1.2 µm), Epi-Polished (Ra< 0.2nm) |
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Note |
Can provide high-quality sapphire substrate wafer according to customers' specific requirement |
2. R面蓝宝石晶片
公司根据客户的特殊需求,也另生产R面蓝宝石晶片!
4寸R面蓝宝石衬底 |
项目规格 |
尺寸与公差 |
单位 |
直径 |
100±0.3 |
mm |
|
厚度 |
500 |
µm |
|
厚度公差 |
±20 |
µm |
|
晶向 |
R面 |
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定向精度 |
定向精度<0.08°(5′) |
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基准边 |
边长:32.5 ± 1.5 |
mm |
|
基准边晶向 |
(0ī11) |
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定向精度<0.08°(5′) |
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表面粗糙度 |
<0.2 |
nm |
|
翘曲度(Warp) |
<20 |
µm |
|
表面处理 |
双面抛光 |
N/A |
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