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US 2019/0097087 A1Published application
Optoelectronic device with non-continuous back contacts
AssigneeAlta Devices, Inc.
InventorsBrendan C. KAYES, Sylvia SPRUYTTE, I-Kang DING, Rose TWIST, Gregg HIGASHI
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Abstract
An optoelectronic device is disclosed. The optoelectronic device comprises a semiconductor structure; a plurality of contacts on the front side of the semiconductor structure; and a plurality of non-continuous metal contacts on a back side of the semiconductor structure. In an embodiment, a plurality of non-continuous back contacts on an optoelectronic device improve the reflectivity and reduce the losses associated with the back surface of the device.
Claims20
An optoelectronic device comprising:
- a semiconductor structure comprising one or more group III-V semiconductor layers, the semiconductor structure having a top side and a back side;
- a plurality of non-continuous top contacts disposed on the top side of the semiconductor structure and configured to enable the top side of the semiconductor structure to receive incident light for trapping the incident light within the optoelectronic device;
- a dielectric material disposed below the back side of the semiconductor structure;
- a plurality of non-continuous back metal contacts disposed within the dielectric material and configured to enable the back side of the semiconductor structure to receive incident light for trapping the incident light within the optoelectronic device, a multi-layer portion of each of the plurality of non-continuous back metal contacts extending away from the back side of the semiconductor structure;
- an encapsulant disposed above the top side of the semiconductor structure, the plurality of non-continuous top contacts disposed within the encapsulant;
- and
- a first transparent member disposed over the encapsulant and a second transparent member disposed below the dielectric material.
4 more elements
An optoelectronic device comprising:
- a p-n structure comprising one or more group III-V semiconductor layers, the p-n structure having a top side and a back side;
- a plurality of non-continuous top contacts disposed on the top side of the p-n structure and configured to enable the top side of the p-n structure to receive incident light for trapping the incident light within the device;
- a dielectric material disposed below the back side of the p-n structure;
- a plurality of non-continuous back metal contacts disposed within the dielectric material and configured to enable the back side of the p-n structure to receive incident light for trapping the incident light within the device, wherein a multi-layer portion of each of the plurality of non-continuous back metal contacts extends away from the back side of the p-n structure;
- an encapsulant disposed above the top side of the p-n structure, the plurality of non-continuous top contacts disposed within the encapsulant;
- and
- a first transparent member disposed over the encapsulant and a second transparent member disposed below the dielectric material.
4 more elements
Dependencies are inferred from the claim text.