LED-BASED LIGHT EMITTING DEVICES
An LED-based light emitting device comprises: a substrate; at least one LED die mounted to the substrate; at least one bond wire that electrically connects the LED die; and a light transmissive material (silicone) encapsulating the at least one LED die and at least one bond wire. The at least one bond wire has a hook-shaped portion that loops back on itself.
1 . A light emitting device comprising:
a substrate;
at least one LED die mounted to the substrate;
at least one bond wire that electrically connects the LED die; and
a light transmissive material encapsulating the at least one LED die and at least one bond wire; wherein
the at least one bond wire has a hook-shaped portion that loops back on itself.
2 . The device of claim 1 , wherein the hook-shaped portion extends above the LED die by a distance of at least 0.2 mm.
3 . The device of claim 1 , wherein the hook-shaped portion is substantially semicircular in form.
4 . The device of claim 2 , wherein the hook-shaped portion has a radius of at least 0.1 mm.
5 . The device of claim 1 , wherein the at least one bond wire is “candy cane” in shape.
6 . The device of claim 1 , wherein the substrate comprises a package having a cavity in which the at least one LED die is mounted.
7 . The device of claim 1 , wherein the substrate comprises a metal core printed circuit board.
8 . A light emitting device comprising: at least one LED die that is electrically connected by a bond wire having a hook-shaped portion that loops back on itself.
9 . The device of claim 8 , wherein the wherein the hook-shaped portion extends above the LED die by a distance of at least 0.2 mm.
10 . The device of claim 8 , wherein the hook-shaped portion is substantially semicircular in form.
11 . The device of claim 10 , wherein the hook-shaped portion has a radius of at least 0.1 mm.