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US 12,731,958 B2Granted
Electrical contact
AssigneeVector Photonics Limited
InventorsJonathan Robert Orchard, David Childs, Richard Taylor
Life of this patent
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AssigneeVector Photonics Limited
InventorsJonathan Robert Orchard, David Childs, Richard Taylor
Estimating the term…
An electrical contact for a semiconductor device, and a method of forming an electrical contact is disclosed. The electrical contact includes a perimeter area, an aperture located within the perimeter area and one or more electrical tracks extending from the perimeter area into the aperture. The one or more electrical tracks have a non-linear shape. The presence of the one or more electrical tracks within the aperture provides a way to remove, or significantly reduce, the problematic effects of current crowding within a semiconductor device in which it is employed. The electrical contacts provide particular application for semiconductor laser devices. When the electrical contact is located on an output surface of the semiconductor laser device, the condition for a diffraction pattern to be imparted onto the emission profile of the output light of the semiconductor laser device is removed, thus improving the overall beam quality of the output light.
An electrical contact for a semiconductor device, the electrical contact comprising a perimeter area, an aperture located within the perimeter area and two or more electrical tracks, each extending from the perimeter area to a free end within the aperture, wherein the two or more electrical tracks comprise a non-linear shape and form the arms of a spiral pattern.
A method of forming an electrical contact for a semiconductor device, the method comprising:
An electrical contact for a semiconductor device, the electrical contact comprising a perimeter area, an aperture located within the perimeter area and a plurality of electrical tracks, each of the plurality of electrical tracks extending from the perimeter area to a free end within the aperture, wherein each of the plurality of electrical tracks comprises non-linear shape and wherein the plurality of electrical tracks form the arms of a spiral pattern.
Dependencies are inferred from the claim text.