Patent ID: 8664684

Claim:
A solid state lighting (“SSL”) device comprising: a first semiconductor material; a second semiconductor material spaced apart from the first semiconductor material; an active region between the first and second semiconductor materials; a contact on the first or second semiconductor material, wherein the contact includes— a first material having a first contact resistance, wherein the first material includes an insulative material on the first semiconductor material, the insulative material having a plurality of openings extending between the first semiconductor material and a surface of the insulative material, at least one of the plurality of openings having a different shape or size from the other openings; and a second material having a second contact resistance different than the first contact resistance, wherein the second material includes a conductive material on the insulative material, the conductive material having a first portion on the surface of the insulative material and a second portion in the openings of the insulative material; and wherein at least one of a shape, a size, a profile, and a distribution of the first and second materials varies from one region of the SSL device to another region of the SSL device.