Flexible hermetic package for optical device
An opto-electronic package having two enclosures in which a first non-hermetic enclosure provides the structural rigidity required to maintain the alignment of the optical components for a predetermined environmental range, and second flexible enclosure that provides a hermetical seal for the opto-electronic package.
1. A device comprising:
a package housing an optical component;
a first feedthrough extending through a first opening in the package;
a second feedthrough extending through a second opening in the package, wherein
the first feedthrough, when positioned in the first opening, results in a third opening surrounding the first feedthrough, and
the second feedthrough, when positioned in the second opening, results in a fourth opening surrounding the second feedthrough;
a first barrier sheet, aligned with the first opening, covering the third opening and forming a first seal between the package and the first feedthrough; and
a second barrier sheet, aligned with the second opening, covering the fourth opening and forming a second seal between the package and the second feedthrough.
2. The package of claim 1 , wherein the first barrier sheet and the second barrier sheet are flexible.
3. The package of claim 1 , wherein the first seal is a hermetic seal and the second seal is a hermetic seal.
4. The package of claim 1 , wherein
the first barrier sheet forms the first seal using a first hermetic seal and a second hermetic seal, and
the second barrier sheet forms the second seal using a third hermetic seal and a fourth hermetic seal.
5. The package of claim 4 , wherein
the first hermetic seal and the second hermetic seal are annular and concentric with respect to the third opening, and
the third hermetic seal and the fourth hermetic seal are annular and concentric with respect to the fourth opening.
6. The package of claim 4 , wherein
the first hermetic seal and the second hermetic seal are annular and concentric with respect to each other, and
the third hermetic seal and the fourth hermetic seal are annular and concentric with respect to each other.
7. The package of claim 4 , wherein
the first hermetic seal seals the first barrier sheet to the first feedthrough,
the second hermetic seal seals the first barrier sheet to the package,
the third hermetic seal seals the second barrier sheet to the second feedthrough, and
the fourth hermetic seal seals the second barrier sheet to the package.
8. The package of claim 1 , wherein an interior atmospheric pressure of the package is substantially the same as an exterior atmospheric pressure.
9. A device comprising:
a package housing an optical component;
a feedthrough extending through a first opening in the package,
wherein the feedthrough, when positioned in the first opening, results in a second opening surrounding the feedthrough; and
a barrier sheet, aligned with the first opening, covering the second opening and forming a seal between the package and the feedthrough.
10. The package of claim 9 , wherein the barrier sheet is flexible.
11. The package of claim 9 , wherein the seal is a hermetic seal.
12. The package of claim 9 , wherein the barrier sheet forms the seal using a first hermetic seal and a second hermetic seal.
13. The package of claim 12 , wherein the first hermetic seal and the second hermetic seal are annular and concentric with respect to the second opening.
14. The package of claim 12 , wherein the first hermetic seal and the second hermetic seal are annular and concentric with respect to each other.
15. The package of claim 12 , wherein
the first hermetic seal seals the barrier sheet to the feedthrough, and
the second hermetic seal seals the barrier sheet to the package.
16. The package of claim 9 , wherein an interior atmospheric pressure of the package is substantially the same as an exterior atmospheric pressure.
17. A method comprising:
mounting an optical component within a package, wherein
the package includes a first opening to receive a feedthrough, and
the feedthrough, when positioned in the first opening, results in a second opening surrounding the feedthrough; and
covering the second opening with a barrier sheet that is aligned with the first opening,
wherein the barrier sheet forms a seal between the package and the feedthrough.
18. The method of claim 17 , wherein the barrier sheet forms the seal using a first hermetic seal and a second hermetic seal.
19. The method of claim 18 , wherein the first hermetic seal and the second hermetic seal are annular and concentric with respect to at least one of:
the second opening, or
each other.
20. The method of claim 18 , wherein
the first hermetic seal seals the barrier sheet to the feedthrough, and
the second hermetic seal seals the barrier sheet to the package.