Patent ID: 7960744
Filing Date: 2011-06-14
Classification: H01L,Y10S

Abstract:
1. A multi-light emitting diode (LED) package, comprising: a heat sink comprising a primary slug and a secondary slug separated from each other; a primary LED chip mounted on the primary slug; a secondary LED chip mounted on the secondary slug; a lead frame structure electrically wired to the primary LED chip and the secondary LED chip to individually operate the primary LED chip and the secondary LED chip; and a phosphor disposed on the primary slug only, the phosphor to cover at least a part of the primary LED chip, wherein the primary slug comprises a cavity on an upper surface of the primary slug to accommodate the primary LED chip, wherein the phosphor is arranged in the cavity, wherein the primary LED chip is attached to the bottom surface of the cavity, the bottom surface of the cavity being coplanar with an upper surface of the secondary slug, and wherein the bottom surface of the cavity is separated from the upper surface of the secondary slug by a raised portion of the upper surface of the primary slug that is not coplanar with the upper surface of the secondary slug wherein the phosphor is arranged in the cavity, wherein the primary LED chip is attached to the bottom surface of the cavity, the bottom surface of the cavity being coplanar with an upper surface of the secondary slug, and wherein the bottom surface of the cavity is separated from the upper surface of the secondary slug by a raised portion of the upper surface of the primary slug that is not coplanar with the upper surface of the secondary slug.