Patent ID: 8686461
Filing Date: 2014-04-01
Classification: H01L

Abstract:
1. A light emitting diode die comprising: an epitaxial stack comprising a first-type semiconductor layer, a multiple quantum well (MQW) layer on the first-type semiconductor layer configured to emit light, and a second-type semiconductor layer on the multiple quantum well (MQW) layer; a first substrate comprising a deposited semiconductor material on the first-type semiconductor layer having a first surface, an opposing second surface and a first area greater than an area of the first-type semiconductor layer; a second substrate on the first substrate configured for attachment to a LED substrate having a second area less than the first area; a seed layer on the first surface of the first substrate configured to assist deposition of the first substrate on the first-type semiconductor layer; and a reflector layer on the seed layer; the first substrate and the second substrate forming a stepped protective structure configured to protect the epitaxial stack during attachment of the light emitting diode die to the LED substrate.