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Hermetic seal products

The technology for bonding metal and glass while ensuring airtightness is the core of our hermetic sealed products. It is a technology that provides airtight bonding using all inorganic materials, and is an irreplaceable technology.

In order to meet the diverse needs of our customers, we receive instructions on specifications and drawings, and manufacture and provide them exclusively for our customers.

 ・Hermetic sealed headers

 ・Cap with lens

 ・Seating with lens

 ・Lid with window

Hermetic sealed headers

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We have been manufacturing and supplying them over the years. They are the essence of our products.

The products are used for
- Pressure sensors
- Terminals of elements that require pressurization
- Terminals and feedthroughs that require airtightness
- TO can devices

General structure
- Metal shell that serves as an housing / body
- Glass that has both airtightness and insulation
- Metal lead pin for extracting electrical signals

> We support various type of metals such as stainless steel, kovar, and free-cutting steel.
> Partial gold plating on leads is available to support.
> Please tell us the specifications, drawings, or illustration of the product you are considering. We are happy to help you to realize it together.


Cap with lens

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A cap with a lens for light emitting elements.
It consists of a metal cap and a glass lens that are hermetically sealed.

There are 3 types of lens shapes available.
- Aspherical lens
- Spherical lens
- Flat lens

> Caps with aspherical lenses for extracting parallel light are our specialty. We flexibly support trial production to achieve the optical output required by customers, and support the realization of desired optical characteristics. Please feel free to contact us for more information.
> We also support spherical / flat lenses.


Seating with lens

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- A seating with a lens for UV-LED elements using glass materials support UV-A, UV-B, and UV-C.
- Hermetic seal joins the lens and metalseating. By plating the seating with gold, it becomes a lens with a seating that can be bonded to the substrate with gold-tin solder.
- We support 3 shapes, spherical surface, aspherical surface and flat surface.


Lid with window (gold-tin bonding)

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This is a product field that is expected to grow in the near future for next-generation optical communication and sensing.
We manufacture and supply windowed lids for the devices, which require airtightness and environmental resistance.

- A metal frame and a window is bonded and hermetically sealed to form a lid.
- A window uses high-strength sapphire with high-surface quality AR coating.
- A metal frame uses Kovar with high precision by cutting.
- The window and the metal frame is bonded and sealed gold-tin.