Managing trench depth in integrated systems

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United States of America

PATENT NO 12249540
SERIAL NO

17574162

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Abstract

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One or more photonic structures are formed within one or more layers over a surface of a substrate, and multiple trenches are formed through the one or more layers housing devices coupled to one or more of the photonic structures. The trenches may include: a first trench that has a bottom surface within the substrate that has a first surface topology characterized by a first surface roughness at a first depth within the substrate relative to the surface of the substrate, and a second trench that has a bottom surface within the substrate that has a second surface topology characterized by a second surface roughness at a second depth within the substrate relative to the surface of the substrate. The first surface roughness may be greater than the second surface roughness, and the second depth may be greater than the first depth.

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Patent Owner(s)

  • CIENA CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baudot, Charles Quebec, CA 46 183
Filion, Benoît Lévis, CA 2 2
Latrasse, Christine Quebec, CA 22 253
Pelletier, François Quebec, CA 15 36

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