Optimization of Package Heat Dissipation Design Based on High-power WB-BGA Industrial Chip with a Wide Temperature Range

Abstract With the progress of science and technology, chip integration and packaging density continue to improve, and the power density increases rapidly, leading to the increasingly prominent problem of chip heat dissipation. The service environment of industrial chips with a wide temperature range is even worse, so it is necessary to ensure reliable operation in the environment of −40°C~85°C. The thermal design and thermal management of packaging have become an important problem in the industry. Based on the wide temperature range of high-power WB-BGA industrial chips, aiming at the difficulty of chip heat dissipation in the high-temperature environment of 85°C, this paper studies and optimizes the packaging heat dissipation, and proposes a high heat dissipation packaging design scheme based on the wide temperature-range high-power WB-BGA industrial chip, which reduces the chip junction temperature by 17.9°C and has a certain reference value for the packaging design of wide temperature range industrial chip.