Patent ID: 8629464

Claim:
A flexible layered structure comprising: i. a flexible top conductive layer comprising a first conductive metal, the flexible top conductive layer having a thickness from 4 to 200 microns; ii. a flexible bottom heat sink layer having a top surface and a bottom surface, the flexible bottom heat sink layer comprising a second conductive metal and the flexible bottom heat sink layer having a thickness of at least 50 microns; and iii. a flexible dielectric middle layer comprising a polymer; the flexible dielectric middle layer having a thickness from 4 to 100 microns and providing electrical insulation between the flexible top conductive layer and the flexible bottom heat sink layer; the first conductive metal of the flexible top conductive layer being the same or different from the second conductive metal of the flexible bottom heat sink layer, and the flexible layered structure having a longitudinal axis and a plurality of defined positions spaced along the longitudinal axis, the flexible layered structure being bendable at least 10 degrees proximate at least one of the defined positions spaced along the longitudinal axis and the flexible layered structure also being twistable relative to the longitudinal axis.