Source: https://patents.google.com/patent/US8446004B2/en
Timestamp: 2018-11-18 15:34:06
Document Index: 677119297

Matched Legal Cases: ['Application No. 05', 'Application No. 08', 'Application No. 2007', 'Application No. 2007', 'Application No. 2007', 'Application No. 2011', 'Application No. 2011', 'Application No. 094118053', 'Application No. 094118053']

US8446004B2 - Power light emitting die package with reflecting lens and the method of making the same - Google Patents
US8446004B2
US8446004B2 US12215319 US21531908A US8446004B2 US 8446004 B2 US8446004 B2 US 8446004B2 US 12215319 US12215319 US 12215319 US 21531908 A US21531908 A US 21531908A US 8446004 B2 US8446004 B2 US 8446004B2
US12215319
US20080283861A1 (en )
This application is a divisional patent application which claims the benefit of the filing date of U.S. patent application Ser. No. 10/861,929, filed Jun. 4, 2004 now U.S. Pat. No. 7,456,499, the disclosure of which is incorporated herein by reference in its entirety.
a leadframe comprising a plurality of leads, said leadframe having a top side and a bottom side, and a portion of said leadframe defining a mounting pad;
said molded body comprising latches suitable for coupling a heatsink on the bottom side of said leadframe; and
a lens coupled to the molded body, wherein a lower portion of the lens extends downward along angled sides of the opening toward said leadframe so that a portion of said lens is even with or below a top surface of said light emitting device;
wherein said lens terminates above said leadframe to form a gap between the top side of said leadframe and said lens.
5. A light emitting die package comprising:
a leadframe comprising a plurality of leads, a portion of said leadframe defining a mounting pad;
a molded body comprising an upper portion positioned above a top side of said leadframe, said molded body defining an opening surrounding the mounting pad;
a lens coupled to the molded body, at least a portion of said lens occupying a substantial amount of the opening defined in the molded body, and wherein a lower portion of the lens extends downward along angled sides of the opening toward said leadframe so that a portion of the lens is even with or below a top surface of said light emitting device;
6. The light emitting die package recited in claim 5, wherein said molded body comprises molded plastic.
7. The light emitting die package recited in claim 5, wherein said lens is a composite optical lens.
8. The light emitting die package recited in claim 5, wherein said lens has a concave bottom surface placed over said light emitting device, an outer surface of said lens surrounding said concave bottom surface being coated with reflective material.
9. The light emitting die package recited in claim 5, wherein said lens comprising a ledge, said lens being fixed to the molded body at its ledge, thereby providing the gap between said lens and the top side of said leadframe.
10. The light emitting die package recited in claim 5, wherein said lens has a semispherical upper portion and a frustoconical lower portion, the semispherical upper portion tapering at a ledge for fitting onto the upper portion of the molded body, the frustoconical lower portion fitting into and being attached to the angled sides of the opening and having a concave bottom surface thereby surrounding said light emitting device.
11. The light emitting die package recited in claim 5, wherein said lens has an upper portion disposed over the lower portion, the lower portion fitting into the opening and surrounding said light emitting device on the mounting pad, wherein the lower portion has a concave bottom surface in combination with the top side of said leadframe forming an enclosed optical cavity, the enclosed optical cavity being partially filled with the encapsulant.
a molded body integrated with portions of said leadframe, said molded body defining an opening on the top side of said leadframe, the opening surrounding the mounting pad, and said molded body comprising latches suitable for coupling a heatsink on the bottom side of said leadframe; and
13. The light emitting die package recited in claim 12, wherein the lower portion of said lens extends downward toward said leadframe so that a portion of the lower portion of said lens is substantially even with said light emitting device; and
14. A light emitting die package comprising:
a leadframe comprising a plurality of leads, the leadframe having a top side and a bottom side, and a portion of the leadframe defining a mounting pad;
a molded body integrated with portions of the leadframe, the molded body defining an opening on the top side of the leadframe, the opening surrounding the mounting pad;
a lens coupled to the molded body and extending downward toward said leadframe;
wherein said lens terminates above said leadframe to form a gap between the top side of said leadframe and said lens, wherein the gap is free of encapsulant.
15. The light emitting die package of claim 14, where the gap comprises an expansion space free of encapsulant.
16. The light emitting die package of claim 14, wherein said molded body comprises molded plastic.
17. The light emitting die package of claim 14, further comprising a heatsink coupled, via a dielectric adhesive film, to said leadframe, said heatsink latched to said leadframe by the latches.
18. The light emitting die package of claim 14, wherein said lens is a composite optical lens.
US12215319 2004-06-04 2008-06-26 Power light emitting die package with reflecting lens and the method of making the same Active US8446004B2 (en)
US10861929 Division US7456499B2 (en) 2004-06-04 2004-06-04 Power light emitting die package with reflecting lens and the method of making the same
US13897952 Division US8932886B2 (en) 2004-06-04 2013-05-20 Power light emitting die package with reflecting lens and the method of making the same
US20080283861A1 true US20080283861A1 (en) 2008-11-20
US8446004B2 true US8446004B2 (en) 2013-05-21
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