Product type: Crystalline. Application: GaN Epitaxy. Model: 2 Inch to 6 Inch.
Overview
Polished Sapphire Wafers for Semiconductor LEDs is a sapphire / specialty wafer made from 99.996% Monocrystalline. Listed geometry: size 2 Inch to 6inch, round shape. It is used in GaN Epitaxy. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | 99.996% Monocrystalline |
|---|---|
| Type | Crystalline |
| Shape | Round |
| Size | 2 Inch to 6inch |
| Application | GaN Epitaxy |
| Model | 2 Inch to 6 Inch |
| Signal Processing | CMP |
| Surface | Single Side Polished or Double Side Polished |
| Growth Method | Ky |
| Manufacturing Technology | Optoelectronic Semiconductor |
| Crystal materials | 99, 996% of Al2O3, High Purity, Monocrystalline |
| Related products | 1. 2inch, 3inch, 4inch & 6inch C plane sapphire substrates |
| Manufacture | Our cleanning machine Smartron from Korea |
| Supplier | Jiaozuo Commercial Finewin Co., Ltd. |
Technical data
| Crystal materials | 99, 996% of Al2O3, High Purity, Monocrystalline |
|---|---|
| Crystal quality | Block marks, twins, Color, micro-bubbles and dispersal centers are non-existent |
| Diameter | 50.8±0.2mm 76.2±0.2mm 100.0±0.3mm 150.0±0.3mm |
| Thickness | 430±15 μ m, 500±15 μ m, 550±15 μm, 650±15 μm,1000±15 μm |
| Orientation | C-plane, M-plane, A-plane, R-plane, C-plane off M-plane, C-plane off A-plane |
| Primary flat Orientation | A-plane (1 1-2 0) ± 0.2° |
| Primary flat length | 16.0±1.5 mm, 32.50±1.5 mm, |
| TTV | ≤ 10 μm |
| LTV | ≤ 10 μm |
| BOW | ≤ 10 μm |
| Warp | ≤ 10 μm |
| Front Surface Back Surface | Epi-polished, Ra< 0.2nm (By AFM) Fine ground (Ra=0.5 to 1.2 μ M) or Epi-polished (Ra< 0.2 nm) |
| Cleaning/packaging | Class 100 clean room cleaning, vacuum packaging; 25 pieces in one cassette packaging or individual packaging. |
What to specify when you request a quote
- Diameter and flat / notch — listed as “2 Inch to 6inch”; state diameter, flat or notch and their tolerances.
- Thickness and TTV — give thickness, its tolerance and total thickness variation.
- Polish and roughness — listed as “Single Side Polished or Double Side Polished”; specify single- or double-side polish and roughness.
- Flatness, bow and warp — quote flatness, bow and warp limits.
- Material grade — listed as “99.996% Monocrystalline”; name the grade (JGS1/JGS2, Borofloat 33, alkali-free, sapphire orientation).
Engineering guides for this part
For material grades and coating options, see Fused Quartz Wafer Substrate Selection: Materials & Coatings for Semiconductor and Optical Systems. How parts like this are machined and finished is covered in Optical Glass Polishing for High Clarity Surfaces.
FAQ
What is the Polished Sapphire Wafers for Semiconductor LEDs made of? expand_more
It is listed as 99.996% Monocrystalline. Other grades can be quoted if your application needs different transmission, thermal or chemical properties.
What sizes and thicknesses are available? expand_more
The listing gives size 2 Inch to 6inch. Custom outlines and thicknesses are made to drawing; state the tolerance you need.
Where is this sapphire / specialty wafer used? expand_more
Listed applications: GaN Epitaxy.
What should I include in a quote request? expand_more
Include diameter and flat / notch, thickness and ttv, polish and roughness, flatness, bow and warp and material grade, plus quantity and a drawing if the part is custom.
