Patent ID: 8957440
Filing Date: 2015-02-17
Classification: H01L

Abstract:
1. A light emitting diode die comprising: a metal overlay; a composite high reflectivity mirror comprising a plurality of alternating stacked layers of SiO2 and at least one of TiO2 and Ta2O5 on the metal overlay; a submount connected to the metal overlay by a bond metal; a transparent conductive oxide layer on the composite high reflectivity mirror; a diode structure on the transparent conductive oxide layer; and an overmolded hemispherical lens, wherein the metal overlay, the composite high reflectivity mirror, the transparent conductive oxide layer are arranged such that the light emitting diode die is configured to exhibit a total power of light output divided by total power extracted from the light emitting diode die without the overmolded hemispherical lens that is less than 1.2.