Heat dissipation has always been a major challenge in the consumer electronics industry. With the advent of the smart era, demands on smartphones have grown increasingly high, leading to more powerful hardware configurations. As smartphone processor performance improves year after year, heat generation has become an inevitable issue. 5G smartphones require additional antennas to receive signals, and high-speed data transmission further increases heat generation. Currently, glass is the predominant material used in smartphones; compared to metal, it dissipates heat significantly more slowly. Combined with the increasingly compact stacking of internal components, these factors place even higher demands on a smartphone’s heat dissipation capabilities.