Optoelectronic assembly incorporating an optical fiber alignment structure
First Claim
Patent Images
1. An assembly comprising:
- an optoelectronic device comprising a light propagating portion;
a board having a pre-alignment hole extending through the board from a top major surface to a bottom major surface, the board arranged with respect to the optoelectronic device such that the pre-alignment hole is substantially aligned with the light propagating portion of the optoelectronic device; and
a polymer-based fiber alignment structure located between the board and the optoelectronic device, the polymer-based fiber alignment structure comprising a tapered portion that is operative as a stationary guiding structure for automatically guiding an optical fiber into optical alignment with the light propagating portion of the optoelectronic device when the optical fiber is inserted via the pre-alignment hole of the board into the tapered portion of the polymer-based fiber alignment structure.
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Abstract
Device assemblies that include one or more optoelectronic devices incorporating one or more polymer-based fiber alignment structures are described. In accordance with some embodiments, the device assemblies can be fabricated using Embedded Wafer-Level Packaging (eWLP) methods. Each of the polymer-based fiber alignment structures operates as a stationary guiding structure for automatically guiding an optical fiber into optical alignment with a light propagating portion of the optoelectronic device when the optical fiber is inserted into a hollowed central portion of the polymer-based fiber alignment structure, the hollowed central portion having sloping sides.
52 Citations
10 Claims
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1. An assembly comprising:
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an optoelectronic device comprising a light propagating portion; a board having a pre-alignment hole extending through the board from a top major surface to a bottom major surface, the board arranged with respect to the optoelectronic device such that the pre-alignment hole is substantially aligned with the light propagating portion of the optoelectronic device; and a polymer-based fiber alignment structure located between the board and the optoelectronic device, the polymer-based fiber alignment structure comprising a tapered portion that is operative as a stationary guiding structure for automatically guiding an optical fiber into optical alignment with the light propagating portion of the optoelectronic device when the optical fiber is inserted via the pre-alignment hole of the board into the tapered portion of the polymer-based fiber alignment structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An assembly comprising:
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an eWLP package comprising an optoelectronic device encapsulated within a hard molded compound, the optoelectronic device comprising a light propagating portion, wherein the optoelectronic device is at least one of a light emitting device or an optical detector; an SU-8 polymer-based fiber alignment structure attached to the optoelectronic device, the SU-8 polymer-based fiber alignment structure having one of a mesa-shape or a vertically elongated shape and comprising a hollowed central portion having sloping sides, the sloping sides operative as a stationary guiding structure for automatically guiding an optical fiber into optical alignment with the light propagating portion of the optoelectronic device when the optical fiber is inserted into the SU-8 polymer-based fiber alignment structure, and wherein an intermediate section of the hollowed central portion has a first diameter corresponding to an external diameter of an unjacketed portion of the optical fiber and an end section adjoining the eWLP package has a second diameter that is smaller than the first diameter; and a board having a through hole extending through the board from a top major surface to a bottom major surface, the board arranged with respect to the optoelectronic device such that the through hole provides pre-alignment of the optical fiber when the optical fiber is inserted via the through hole of the board into the tapered portion of the SU-8 polymer-based fiber alignment structure the sloping sides of the hollowed central portion providing the stationary guiding structure for precision alignment of the optical fiber with the light propagating portion of the optoelectronic device. - View Dependent Claims (10)
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Specification