Schott Float/Borosilicate Glass Substrate

Reference: HM2947

Condition: New product

Schott Float/Borosilicate Glass Substrate is a high-quality glass known for its excellent optical clarity, low thermal expansion, and chemical resistance. It offers high transmission across the spectrum and withstands temperatures up to 450°C, making it suitable for optical, semiconductor, and microelectronics applications.

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Diameter	3 inch ~ 12 inch, or customized

Schott Float/Borosilicate Glass Substrate is a premium glass material manufactured using advanced float and borosilicate glass processes. It features high optical transparency, minimal fluorescence, and outstanding surface quality, ensuring precise performance in optical, photonic, and microelectronic applications. With low thermal expansion and strong resistance to thermal shock, it remains stable under high temperatures up to 450°C. Its chemical durability against water, acids, and alkalis makes it suitable for chemical analysis and industrial applications. Additionally, it supports silicon wafer anodic bonding, offering strong compatibility with semiconductor and biomedical technologies. Heeger Materials provides Schott Float/Borosilicate Glass Substrate in sizes ranging from 3 inches to 12 inches to meet various industry needs.

Schott Float/Borosilicate Glass Substrate Chemical Composition

Compound	Percentage
B₂O₃	13%
Na₂O/K₂O	4%
Al₂O₃	2%
SiO₂	81%

Schott Float/Borosilicate Glass Substrate Specifications

Specification (Unit)	4"	6"	8"	10"	12"
Diameter (mm)/Size(or square)	100	150	200	250	300
Tolerance (mm)	±0.2	±0.2	±0.2	±0.2	±0.2
Thickness (mm)	≥0.10	≥0.30	≥0.40	≥0.50	≥0.50
Primary Flat (mm)	32.5	57.5	Semi-notch	Semi-notch	Semi-notch
Local Thickness Variation (LTV, 5mm×5mm, µm)	<0.5	<0.5	<0.5	<0.5	<0.5
Total Thickness Variation (TTV, µm)	<2	<3	<3	<5	<5
Bow (µm)	±20	±30	±40	±40	±40
Warp (µm)	≤30	≤40	≤50	≤50	≤50
PLTV (5mm×5mm, <0.4µm, %)	≥95%	≥95%	≥95%	≥95%	≥95%
Edge Rounding (mm)	Complies with SEMI M1.2 standard or IEC62276 reference
Surface Type	Single-side polished or double-side polished
Polished Surface Roughness (Ra, nm)	≤1
Backside Standard (µm)	Typically 0.2-0.7, or customizable as needed

Note: In addition to our Stock Modes, Heeger Materials provides customized services to meet your needs.

Schott Float/Borosilicate Glass Substrate Transmittance Curve

Schott Float/Borosilicate Glass Substrate Applications

Optical Components: Used in precision optics, lenses, and optical windows due to its high transparency and minimal fluorescence.
Semiconductor Industry: Serves as a substrate for silicon wafer anodic bonding, ensuring compatibility with microelectronics and MEMS fabrication.
Display Technology: Utilized in LCDs, OLEDs, and other high-performance display applications requiring optical clarity and thermal stability.
Chemical Analysis & Laboratory Equipment: Resistant to acids, alkalis, and water, making it ideal for laboratory glassware, analytical instruments, and chemical processing.
Aerospace & High-Temperature Applications: Withstands extreme temperatures and thermal shock, making it suitable for space optics, sensor windows, and protective covers.

Schott Float/Borosilicate Glass Substrate Packing And Shipping

Where to Buy Schott Float/Borosilicate Glass Substrate in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Conductive Glass Substrates products including Schott Float/Borosilicate Glass Substrate, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We specialize in premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.