SCHOTT AG Glass Wafers BOROFLOAT® 33

Glass wafers made of BOROFLOAT^® glass offer outstanding thermal resistace.

The glass composition of BOROFLOAT^® is tailored to perfectly match the thermal expansion coefficient of silicon which is essential for good bonding behavior.

BOROFLOAT^® - The sum of its properties is what makes it unique for glass wafers!

• Outstanding thermal resistance
• Exceptionally high transparency
• High chemical durability
• Excellent mechanical strength

BOROFLOAT^® 33 glass 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 ASTM E 438-92 (2001), Type 1, class A. Rediscover BOROFLOAT^® 33 and experience the infinite potential of our most versatile material platform.

BOROFLOAT^®´s exceptionally high transparency, outstanding visual quality and optical clarity make it the material of choice for many optical applications in research and industry. High transparency in visible and near IR & UV range of wavelengths offers customers a vast wealth of new possibilities. Specific light transmittance values are thickness dependent and significantly influenced by Fe₂O₃ impurity levels.

BOROFLOAT^® specialty glass uses only the purest raw materials resulting in extremely low (~90 ppm) iron impurity levels and hence exceptionally high transmission values.

BOROFLOAT^® - The sum of its properties is what makes it unique for optical mirrors!

• Exceptionally high transparency
• Outstanding thermal resistance
• High chemical durability
• Broad range of sizes and thicknesses

The glass composition of BOROFLOAT^® specialty glass is not only tailored towards excellent optical properties. It is also designed to provide very low thermal expansion and high chemical durability. The element boron plays a significant role in delivering such special properties as it determines how strong the bonds are within the glass network. BOROFLOAT^® glass is used whenever very good temperature stability and excellent resistance to thermal shock are required.