US 12,114,471 B2
Active shield structure
Narayan Prasad Ramachandran, Bangalore (IN); Rainer Herberholz, Great Abington (GB); Peter Andrew Rees Williams, Great Abington (GB); and Danny Joseph Traynor, Northampton (GB)
Assigned to Arm Limited, Cambridge (GB)
Filed by Arm Limited, Cambridge (GB)
Filed on Jul. 20, 2020, as Appl. No. 16/933,886.
Prior Publication US 2022/0022349 A1, Jan. 20, 2022
Int. Cl. H05K 9/00 (2006.01); G06F 21/72 (2013.01); G06F 21/87 (2013.01); H01F 17/00 (2006.01); H01F 27/36 (2006.01); H01F 41/04 (2006.01); H01L 23/00 (2006.01); H01L 23/057 (2006.01); H01R 13/639 (2006.01)
CPC H05K 9/0071 (2013.01) [G06F 21/72 (2013.01); G06F 21/87 (2013.01); H01F 17/0006 (2013.01); H01F 27/363 (2020.08); H01F 41/041 (2013.01); H01L 23/057 (2013.01); H01L 23/576 (2013.01); H01F 2017/0073 (2013.01); H01L 2924/3025 (2013.01); H01R 13/6397 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A device comprising:
an array of active shield coil structures, wherein each active shield coil structure comprises:
a first coil-shaped spiral structure for an active shield; and
a second coil-shaped spiral structure that is wound in-between windings of the first coil-shaped spiral structure, wherein:
the first coil-shaped spiral structure provides for a coil-based electro-magnetic (EM) shield as a counter-measure circuit for protecting an underlying circuit, and
wherein the array of the active shield coil structures is arranged in a grid pattern.