Texas Instruments Incorporated
Thermal Management in Integrated Circuit Using Phononic Bandgap Structure

Abstract:

An encapsulated integrated circuit includes an integrated circuit (IC) die. An encapsulation material encapsulates the IC die. Within the encapsulation material, a phononic bandgap structure is configured to have a phononic bandgap with a frequency range approximately equal to a range of frequencies of thermal phonons produced by the IC die when the IC die is operating.