SCHOTT Xensation® α Cover Glass
Original Manufacturer Reference · SCHOTT · LABS cover glass
Product Overview
Lithium-alumino-borosilicate cover glass developed for enhanced rough-surface drop and scratch performance after chemical strengthening.
Typical Applications
- Mobile-device and display covers
- Protective windows with demanding drop targets
- Strengthened shaped-glass components
Reference Specifications
The following values are condensed from the supplied manufacturer data sheet. Test conditions are retained where they affect interpretation.
| Material class | Lithium-alumino-borosilicate (LABS) |
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| Thickness / sheet size | 0.55–0.80 mm / 1150 × 950 mm |
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| Density | 2.39 g/cm³ |
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| Young’s / shear modulus | 80 / 32 GPa |
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| Poisson’s ratio | 0.26 |
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| Vickers hardness | 570 unstrengthened; 660 strengthened |
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| CTE | 5.3 × 10⁻⁶ K⁻¹ |
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| Tg / annealing / softening | 577 / 589 / 840°C |
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| Strengthening capability | CS >900 MPa; DoCL >180 µm; four-point bending >800 MPa |
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China-Made Alternative Products
A potential Chinese LABS/aluminosilicate alternative is assessed on ion-exchange kinetics, CS/DoCL profile, scratch threshold, edge strength and the exact device-level drop protocol.
Recommended matching criteria:
- Chinese high-performance cover-glass grades
- Strengthening and shaped-part processing
- Customer-specific drop/scratch qualification
Target modelCritical parametersCandidate gradeSample testingBatch qualification
Customization and Processing
- Round wafers, square panels, windows and custom outlines
- Precision cutting, edge grinding, chamfering and laser processing
- Single- or double-side polishing, thinning, cleaning and marking
- TTV, warp, roughness, dimensional and optical inspection to agreed criteria
Qualification Note
Important: “Alternative” means a candidate selected for the same application target. It does not mean an automatic drop-in replacement or identical composition. Final acceptance is based on agreed specifications, samples, test reports and process verification.
Request Material Matching
Manufacturer and product names are used only to identify reference materials and technical targets. Semicon Global Tech is an independent supplier and does not claim manufacturer authorization unless explicitly stated. Original-grade data and China-made alternative specifications are presented separately; supply specifications are confirmed by quotation, COA and approved samples.
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