A variable-height thermal-interface device is provided for transferring
heat from a heat source to a sink. The device comprises a first uniaxial
rotary cylindrical joint comprising a first cylindrically concave surface
in slidable contact with a first cylindrically convex surface. The first
cylindrically concave surface and the first cylindrically convex surface
share a common first radius of curvature relative to a common first
cylinder axis. The first cylindrically concave surface is operable to
rotate about the common first cylinder axis relative to the first
cylindrically concave surface to compensate for uniaxial angular
misalignment between the source and the heat sink.
