Passivation Glass
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Passivation Glass

For chemical and mechanical strengthening of semiconductor and varistor surfaces, SCHOTT passivation glass powders are the material of choice. The applied glass layer provides dependable protection for the function of passivating p-n-junctions and acts as hermetic housing for the discrete device.
Four glass bowls with different glass powders in various grain sizes and colors

Extensive selection of high-purity materials

SCHOTT’s Passivation Glass collection is extremely versatile, with comprehensive options of glass compositions to suit a variety of semiconductor and varistor types. Only the finest raw materials are chosen to enable high material purity and low alkaline content.

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Lead-free glasses

SCHOTT glass powders are available with lead-free options for all common passivation applications, including sinter glass diodes and rectifiers, wafer passivation (including thyristors and diodes), and the glazing of high-voltage varistors.

Versatility and performance combined

Passivation glass powders are carefully manufactured by SCHOTT to deliver a diverse range of properties. These include high insulation resistance and precise combinations of elements to match specific components, resulting in a highly versatile powder that can be used with a wide range of products.

EXPLORE MATERIAL PROPERTIES IN DETAIL
High insulation resistance
High insulation resistance
Achieved by using materials with low alkali content.
Vast compositions options
Vast compositions options
Combinations of zinc, silicon, and boron are available to match the coefficient of thermal expansion.
Large range of applications
Large range of applications
Used in sinter glass diodes, planar and mesa diodes, varistors, wafers, thyristors, rectifiers and transistors.
Lead-free
Lead-free
Lead-free glass powder for all common passivation applications.

We are certified

Our products are DIN ISO 9001 and Environment ISO 14001 certified.

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Want to know more? Let's talk

Whether you need more information, samples, a quote, or advice for a project, I would be delighted to talk to you.

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Antonio Trizzino, Sales Manager Europe
Antonio Trizzino

Sales Manager Europe