US 12,419,152 B2
Light-emitting diode (LED) device with indentations
Barbara Roswitha Mülders, Aachen (DE)
Assigned to Lumileds Singapore Pte. Ltd., Singapore (SG)
Appl. No. 18/286,074
Filed by LUMILEDS LLC, San Jose, CA (US)
PCT Filed Apr. 18, 2022, PCT No. PCT/US2022/025219
§ 371(c)(1), (2) Date Oct. 6, 2023,
PCT Pub. No. WO2022/221762, PCT Pub. Date Oct. 20, 2022.
Claims priority of provisional application 63/175,864, filed on Apr. 16, 2021.
Prior Publication US 2024/0204160 A1, Jun. 20, 2024
Int. Cl. H10H 20/858 (2025.01); F21S 41/148 (2018.01); H01L 25/075 (2006.01)
CPC H10H 20/8583 (2025.01) [F21S 41/148 (2018.01); H01L 25/0753 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A light-emitting diode (LED) device comprising:
a circuit board comprising a top surface and a bottom surface opposite the top surface, wherein the circuit board has a length and a width, wherein the length of the circuit board has a larger magnitude than a magnitude of the width of the circuit board, and wherein a distance between the top surface and the bottom surface defines a depth of the circuit board; and
a plurality of surface mounted devices (SMDs) on the top surface of the circuit board and spaced apart from each other along the length the circuit board,
wherein the bottom surface of the circuit board comprises a plurality of pairs of grooves that each extend across the entire width of the circuit board with each pair passing directly under a respective one of the plurality of SMDs.