Steady-state methods for measuring in-plane thermal conductivity of thin films for heat spreading applications - Hines, Nicholas J; Yates, Luke; Foley, Brian M; Cheng, Zhe; Bougher, Thomas L; Goorsky, Mark S; Hobart, Karl D; Feygelson, Tatyana I; Tadjer, Marko J; Graham, Samuel (Review of Scientific Instruments, 2021)