100 ± 0.1mm Schott Borofloat 33 Glass Wafer, 500±25µm, DSP, w/ Bevel, Primary Flat Only
High quality 4 inch Schott Borofloat 33 Glass wafers are in stock for immediate shipment. Order 100mm Borofloat 33 Glass wafers with best price on the market from a trusted materials science supplier, MSE Supplies.
Custom made Borofloat 33 Glass wafers and substrates are available upon request. Please contact us for a quote.
Product Number: WA0901
Material: Schott Borofloat 33 borosilicate glass (composition: 81% SiO2, 13% B2O3, 4% Na2O/K2O, 2% Al2O3)
Grade: Schott Borofloat 33 Glass
Diameter: 100 ± 0.1mm
Thickness: 500 ± 25um
Primary Flat: 32.5 ± 2.0mm (primary flat only)
Surface Polishing: Double Side Polished (DSP) with surface roughness Ra < 1 nm on both the top surface and bottom surface
Surface Finish: 40/20 S/D
TTV: < 10 um
Edge: with Bevel, C shape CNC edge grounding
Chemical Composition of Schott Borofloat Borosilicate Glass
The performance requirements for glass wafers used for anodic bonding or as carrier wafers in wafer thinning processes are mainly determined by their ability to perfectly match those of the silicon wafer to which they shall be permanently or temporarily bonded. Well-adapted thermal expansion behavior is as important as excellent flatness and process robustness. BOROFLOAT® glass wafers provide such outstanding material properties along with exceptionally high UV transmission – a special requirement for high speed laser de-bonding processes.
100 mm Silicon wafers (P type and N type) are also available from MSE Supplies.
BOROFLOAT® 33 from Germany is the world’s first floated borosilicate flat glass. It combines superior quality and excellent flatness with outstanding thermal, optical, chemical and mechanical features. The chemical composition and physical properties of BOROFLOAT® 33 are in accordance with DIN ISO 3585 and EN 1748 T1.
Optional Transmission of Schott Borofloat Glass
Key Benefits of Borofloat Glass:
• Outstanding thermal resistance
• Exceptionally high transparency
• High chemical durability
• Excellent mechanical strength
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