US 11,776,872 B2
Accordion heat sink
Ryan Baker, Alpharetta, GA (US)
Assigned to ARRIS ENTERPRISES LLC, Suwanee, GA (US)
Filed by ARRIS Enterprises LLC, Suwanee, GA (US)
Filed on Feb. 12, 2021, as Appl. No. 17/174,565.
Claims priority of provisional application 62/986,067, filed on Mar. 6, 2020.
Prior Publication US 2021/0280494 A1, Sep. 9, 2021
Int. Cl. H01L 23/40 (2006.01); H05K 7/20 (2006.01)
CPC H01L 23/40 (2013.01) [H05K 7/20509 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A heat sink comprising:
a first flange;
a second flange;
an accordion-shaped medial portion continuous between the first flange and the second flange; and
a spring pin,
wherein:
the first flange and the second flange are configured to be attached directly onto a top surface of a circuit board;
the accordion-shaped medial portion includes troughs on a proximal side of the accordion-shaped medial portion and crests on a distal side of the accordion-shaped medial portion such that the heat sink is configured to disperse heat away from the circuit board;
the accordion-shaped medial portion includes planar sections between the troughs and the crests;
at least one of the planar sections has a height which is different than a height of each of a remainder of the planar sections such that the heat sink is shaped for accommodating components of various sizes on the circuit board; and
the spring pin is configured to attach the first flange or the second flange directly to the circuit board.