US 12,133,322 B2
Electromagnetic interference shields having attentuation interfaces
Jaejin Lee, Beaverton, OR (US); Isaac Simpson, Beaverton, OR (US); Dong-Ho Han, Beaverton, OR (US); Jose Salazar Delgado, San Jose (CR); and Arturo Navarro Alvarez, Belen (CR)
Assigned to Intel Corporation, Santa Clara, CA (US)
Filed by Intel Corporation, Santa Clara, CA (US)
Filed on Dec. 23, 2020, as Appl. No. 17/133,113.
Prior Publication US 2021/0120665 A1, Apr. 22, 2021
Int. Cl. H05K 1/02 (2006.01)
CPC H05K 1/0225 (2013.01) [H05K 1/0298 (2013.01); H05K 2201/093 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electromagnetic interference (EMI) shield comprising:
side walls having respective recesses at distal ends of the side walls, the side walls having a first thickness; and
an attenuation interface at the distal ends of the side walls, the attenuation interface including:
an EMI absorber in the recesses; and
a metal backing adjacent the EMI absorber, the metal backing having second thickness less than the first thickness, the EMI absorber and the metal backing to contact a circuit board.