High power light emitting diode package and method of producing the same
View Patent ↗A high power Light Emitting Diode (LED) package and a method of producing the same. The high power LED package according to the present invention includes a plurality of light emitting diode chips, a first lead frame with the light emitting diode chips mounted thereon, and a second lead frame disposed at a predetermined interval from the first lead frame. The LED package also includes a package body fixing the first and second lead frames and bonding wires for electrically connecting the plurality of LED chips with upward-inclined inner side walls thereof and a second reflecting part surrounding the entire plurality of LED chips with an upward-inclined inner side wall thereof.
1. A method of producing a high power light emitting diode package comprising:
preparing a first lead frame and a second lead frame;
injection-molding a resin to surround the first and second lead frames to form a package body fixing the first and second lead frames, the package body comprising at least one first reflecting part surrounding predetermined portions on the first lead frame with upward-inclined inner side walls thereof, and a second reflecting part surrounding the at least one first reflecting part with an upward-inclined inner side wall thereof;
mounting a plurality of light emitting diode chips on the first lead frame so as to be surrounded by the first reflecting part;
electrically connecting the plurality of light emitting diode chips with bonding wires; and
encapsulating the plurality of light emitting diode chips with a resin encapsulant.
2. The method according to claim 1 , wherein the resin encapsulant comprises one selected from the group consisting of a silicone-based resin, an epoxy resin, a urethane-based resin, and mixtures thereof.
3. The method according to claim 1 , wherein the resin encapsulant comprises phosphor.
4. The method according to claim 1 , wherein the electrically connecting the plurality of light emitting diode chips with bonding wires comprises extending bonding wires over upper parts of the first reflecting part to electrically connect the adjacent ones of the light emitting diode chips.
5. The method according to claim 1 , wherein the first lead frame comprises a planar base and an extension extending from an edge of the base.
6. The method according to claim 5 , wherein the forming a package body comprises forming the base of the first lead frame such that a portion of undersurface of the base of the first lead frame is exposed.