US 9,812,374 B1
Thermal management device with textured surface for extended cooling limit
Gamal Refai-Ahmed, Santa Clara, CA (US); Suresh Ramalingam, Fremont, CA (US); and Brian D. Philofsky, Longmont, CO (US)
Assigned to XILINIX, INC., San Jose, CA (US)
Filed by Xilinx, Inc., San Jose, CA (US)
Filed on Mar. 22, 2017, as Appl. No. 15/466,495.
Int. Cl. H01L 23/12 (2006.01); H01L 21/00 (2006.01); H05K 7/20 (2006.01); H01L 23/367 (2006.01); H01L 23/427 (2006.01); H01L 25/065 (2006.01); H01L 23/373 (2006.01); H01L 21/48 (2006.01)
CPC H01L 23/3675 (2013.01) [H01L 21/4882 (2013.01); H01L 23/3677 (2013.01); H01L 23/3736 (2013.01); H01L 23/3737 (2013.01); H01L 23/427 (2013.01); H01L 25/0655 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A heat management device comprising a textured surface having a plurality of grooves disposed in an otherwise flat surface, a combined area of regions with the grooves in the textured surface being significantly smaller than a combined area of regions with the flat surface, and a plurality of small elongated structures extending from the textured surface into the plurality of grooves.