US 10,172,239 B2
Tamper-respondent sensors with formed flexible layer(s)
John R. Dangler, Rochester, MN (US); Phillip Duane Isaacs, Rochester, MN (US); and David C. Long, Wappingers Fall, NY (US)
Assigned to INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed by INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed on Sep. 25, 2015, as Appl. No. 14/865,551.
Prior Publication US 2017/0091491 A1, Mar. 30, 2017
Int. Cl. G06F 21/87 (2013.01); H05K 3/10 (2006.01); G06F 21/72 (2013.01); H05K 1/02 (2006.01); H05K 1/03 (2006.01); H05K 1/14 (2006.01); H05K 1/16 (2006.01); H05K 3/06 (2006.01); H05K 3/36 (2006.01)
CPC H05K 3/10 (2013.01) [G06F 21/72 (2013.01); G06F 21/87 (2013.01); H05K 1/028 (2013.01); H05K 1/0275 (2013.01); H05K 1/0298 (2013.01); H05K 1/0393 (2013.01); H05K 1/147 (2013.01); H05K 1/167 (2013.01); H05K 3/062 (2013.01); H05K 3/366 (2013.01); H05K 2201/0352 (2013.01); H05K 2201/042 (2013.01); H05K 2201/047 (2013.01); H05K 2201/055 (2013.01); H05K 2201/09036 (2013.01); H05K 2201/09263 (2013.01); H05K 2201/10151 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A tamper-respondent assembly comprising:
a tamper-respondent sensor, the tamper-respondent sensor comprising:
at least one formed flexible layer having opposite first and second sides with surface curvatures extending from the opposite first and second sides of the at least one formed flexible layer: and
circuit lines forming at least one resistive network, the circuit lines being disposed on at least one of the first side or the second side of the at least one formed flexible layer, the circuit lines wrapping over, at least in part, the surface curvatures extending from the at least one first side or second side of the at least one formed flexible layer,
wherein the at least one formed flexible layer is collapsed as a flattened, folded layer.