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    Interposer With Polymer-filled Or Polymer-lined Optical Through-vias In Thin Glass Substrate

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    9417415.pdf (652.4Kb)
    Date
    8/16/2016
    Author
    Tummala, Rao R.
    Chou, Chia-te
    Sundaram, Venkatesh
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    Abstract
    An optical interposer that includes a glass substrate having one or more optical vias extending through the glass substrate. A first optical polymer may be bonded to the substrate and to interior surfaces of the one or more optical vias. Implementations include one or more optical via cores comprising a second optical polymer that has a greater refractive index than the first optical polymer. The one or more optical via cores may be at least partially surrounded by the first optical polymer. Embodiments include encapsulated optical waveguides in communication with the optical vias and/or via cores. Example implementations include layers of electrical insulation, electrical traces, and electrical vias. A method of manufacture includes forming the optical vias by laser ablation. Certain embodiments may include chemically etching the inside of the vias to improve surface roughness.
    URI
    http://hdl.handle.net/1853/57110
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    • Georgia Tech Patents [1761]

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