SCHOTT® Cavity Cap
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Three SCHOTT® Cavity Caps with blue edge

SCHOTT® Cavity Cap

SCHOTT® Cavity Cap is a new space-saving packaging of optoelectronic devices. It combines many years of experience in providing flat cover glass for optical sensors, light emitters and MEMS devices, now reliably glue-free bonded to high-precision and versatile FLEXINITY® structured spacer glass.
Three SCHOTT® Cavity Caps of different sizes next to a ruler

Integrated cover glass solution

SCHOTT® Cavity Cap delivers a range of value-added benefits for photonic components, from high light transmission and mechanical strength to precise geometrical accuracy and customizable shapes and sizes. The use of FLEXINITY® glass spacers also provides high precision and versatility, alongside a 3D window that provides space for the electronics underneath.

Series of SCHOTT® Cavity Caps around a photonic chip

The all-round solution

With its top and sides made of glass, SCHOTT® Cavity Cap offers the possibility of all-round light transmittance. In addition, the pre-assembled solution ensures repeatable packaging quality and small size package designs, contributing to performance, reliability, and low total cost of ownership.

Perfect physical properties for photonic chip protection

The impressive range of physical properties and geometrical versatility offered by SCHOTT® Cavity Cap give it a number of advantages that make it the ideal protection for the latest photonic chips. High light transmission and adjustable thermal expansion fitting to the submount material, combined with supreme accuracy and reliable edge cosmetics, result in a highly customizable glass packaging solution.

High optical transmittance
High optical transmittance
Top window light transmission in a range of wavelengths from UV to NIR.
Tight geometrical properties
Tight geometrical properties
High geometrical accuracy in a wide range of lateral and transversal dimensions, with precision in the µm range.
Ready to integrate
Ready to integrate
No window-to-spacer bonding required, enabling optoelectronics to be directly superimposed.
3D geometries
3D geometries
A 3D-contoured window provides space to cover a wide range of electronic and optical components.
High reliability
High reliability
Mechanically strong with hermetic bonding for long-lasting components.

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Want to know more? Let’s talk

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

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