Product type: Convex Lens. Application: Endoscope.
Overview
The Hot Selling Optical Sapphire Window Sapphire Glass Wafer Made in China is supplied as a sapphire / specialty wafer made from Sapphire Glass,99.996% Al2O3. Listed geometry: thickness Based on Your Need, round shape. Optical / electrical data: transmittance >95%. Coating: Based on Your Need. Listed for Endoscope applications. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Sapphire Glass,99.996% Al2O3 |
|---|---|
| Type | Convex Lens |
| Shape | Round |
| Thickness | Based on Your Need |
| Transmittance | >95% |
| Coating | Based on Your Need |
| Usage | Endoscope |
| Lenses Color | Transparent and Based on Your Need |
| Orientation | a-Palne,C-Axis,Random |
| Tolerance | +/-0.005mm to +/-0.01mm |
| Polish | Based on Your Need |
| Sapphire Kyropoulos Cylinders | Yes |
| No Cracks, No Bubbles | Yes |
| Roundness Max | Based on Your Need |
| Roughness | Based on Your Need |
| Transportation | DHL.TNT.FedEx and So on |
| Supplier | Chengdu Cocreation Optical Co., Ltd. |
Technical data
| Parameter | Specification |
|---|---|
| Crystal Orientation | C-axis (0001) miscut to M |
| Mis-Orientation Towards m-aixs | 0.2° off axis + 0.05°Towards M axis |
| Mis Orientation Towards a-axis Primary Flat | 0°± 0.15° |
| Diameter | 50.8mm ± 0.05mm |
| Thickness | 430um ± 15um |
| Orientation Flat Location | A-axis ± 0.3° |
| Major Flat Length | 16.0mm± 1.0mm |
| Surface Finish | Epi Polished one side, Ra<0.2nm |
| Back Surface | 0.6<Ra<1.2um |
| Edge Condition | Edge defect not to exceed SEMI M3-91, Table 2 |
| Bevel | T-type or R-type |
| TTV | < 10um |
| Bow | -8~0um |
| Warp | < 10um |
| Wafer ID | Laser Marking-Standard Backside or front-side option |
| Cleanliness | Free visible contamination |
| Packaging | Class 100 clean room environment, in cassettes of 25. |
| Parameter | Specification |
|---|---|
| Crystal Orientation | C-axis (0001) miscut to M |
| Mis-Orientation Towards m-aixs | 0.2° off axis ± 0.1°Towards M axis |
| Mis Orientation Towards a-axis Primary Flat | 0°± 0.15° |
| Diameter | 100mm ± 0.10mm |
| Thickness | 650um ± 25um |
| Orientation Flat Location | A-axis ± 0.3° |
| Major Flat Length | 31.0mm± 1.0mm |
| Surface Finish | Epi Polished one side, Ra<0.3nm |
| Back Surface | Ra <1.2um |
| Edge Condition | Edge defect not to exceed SEMI M3-91, Table 2 |
| Bevel | T Size or R Size |
| TTV | < 10 um |
| LTV | <3 um(7*7um) |
| Bow | -10~0um |
| Warp | <20 um |
| Wafer ID | Laser Marking-Standard Backside or Front-side option |
| Cleanliness | Free visible contamination |
| Packaging | Class 100 clean room environment, in cassettes of 25. |
| Parameter | Specification |
|---|---|
| Crystal Orientation | C-axis (0001)miscut to M |
| Mis-Orientation Towards Laser Mark | 0.2° off axis ± 0.05°Towards M axis |
| Mis Orientation Towards Primary Flat | 0°± 0.15° |
| Diameter | 150mm ± 0.20mm |
| Thickness | 1300um ± 25um or 1000um ± 20um |
| Orientation Flat Location | A-axis ± 0.3° |
| Major Flat Length | 47.5mm± 1.0mm |
| Minor | Optional |
| Surface Finish | Epi Polished one side, Ra<0.3nm |
| Back Surface | Ra <1um |
| Edge Condition | Edge defect not to exceed SEMI M3-91, Table 2 ; |
| TTV | < 15 um |
| Bow | < 10 um |
| Warp | < 30um |
| Wafer ID | Laser Marking-Standard Backside, Front side(optional) |
| Cleanliness | No visual contamination |
| Packaging | Substrates to be Packaged in a class 100 clean room environment, in vacuum packed cassettes of 25pcs. |
What to specify when you request a quote
- Diameter and flat / notch — state diameter, flat or notch and their tolerances.
- Thickness and TTV — listed as “Based on Your Need”; give thickness, its tolerance and total thickness variation.
- Polish and roughness — listed as “Based on Your Need”; specify single- or double-side polish and roughness.
- Flatness, bow and warp — quote flatness, bow and warp limits.
- Material grade — listed as “Sapphire Glass,99.996% Al2O3”; 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 Precision Glass Hole Machining for MEMS and Wafer Parts. For an application example, read Custom Optical Window Glass for Smart Thermostats | OEM/ODM. Before sending a drawing, check Specifying Coatings for Custom Glass Windows and Substrates. A related standard product is Infrared Windows.


