Creating a Strong Hermetic Seal by Changing the Orientation of Sapphire Window - Application Note by Insaco

For more than 60 years, Insaco has been synonymous with excellence in the development and production of high precision machined parts. As a custom fabricator of ceramic, glass, sapphire, and other hard materials, Insaco specialize in machining parts that often require tolerances measured in millionths of an inch, and wear properties that satisfy even the most demanding applications.

Problem

A manufacturer of medical endoscopes needed metalized sapphire windows with extremely smooth optically polished faces to allow for hermetic sealing into a Nickel 200 tube that was brazed to the sapphire.

Solution

Insaco recommended a unique manufacturing process at Insaco which would improve the overall quality of the sapphire window while allowing for improved hermetic sealing in order to autoclave the endoscope.

Sapphire Window

Result

The manufacturing changes in the orientation of the sapphire window allowed for creating a strong hermetic seal which further enhanced the ability to autoclave the endoscope resulting in a 35% increase in overall yield on the final brazed sub-assembly.

This information has been sourced, reviewed and adapted from materials provided by INSACO Inc.

For more information on this source, please visit INSACO Inc.

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