US 11,929,453 B2
Light-emitting diode package using fluid encapsulate
Alex Lunev, San Jose, CA (US); Ling Zhou, San Jose, CA (US); Jianping Zhang, San Jose, CA (US); Ying Gao, San Jose, CA (US); and Huazhong Deng, San Jose, CA (US)
Assigned to BOLB INC., Livermore, CA (US)
Filed by BOLB INC., San Jose, CA (US)
Filed on Apr. 12, 2021, as Appl. No. 17/228,490.
Prior Publication US 2022/0328729 A1, Oct. 13, 2022
Int. Cl. H01L 33/48 (2010.01); H01L 33/52 (2010.01); H01L 33/56 (2010.01); H01L 33/58 (2010.01); H01L 33/62 (2010.01); H01L 33/64 (2010.01)
CPC H01L 33/486 (2013.01) [H01L 33/56 (2013.01); H01L 33/58 (2013.01); H01L 33/62 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A light-emitting diode package comprising:
a foundation;
a first metal layer, a second metal layer, and third metal layer formed on a top surface of the foundation, wherein the first metal layer and the second metal layer are electrically isolated by a first gap, the third metal layer surrounds the first and second metal layers and is electrically isolated from the first and second metal layers by a second gap;
a metal pedestal with a central opening, wherein a bottom surface of the metal pedestal is attached to the third metal layer;
a lens attached to a top surface of the metal pedestal, wherein the foundation, the metal pedestal and the lens together define a cavity;
a chip disposed in the cavity and enclosed by the metal pedestal, wherein an anode of the chip is electrically connected to the first metal layer and a cathode of the chip is electrically connected to the second metal layer;
a fluid encapsulate, wherein the cavity is fully or partially filled with the fluid encapsulate; and
a gasket with a central opening, wherein a notch is formed on a top surface of the gasket, the top surface of the gasket is attached to the lens and a bottom surface of the gasket is attached to the top surface of the metal pedestal, and the central opening of the gasket is aligned with the central opening of the metal pedestal.