Intel Corporation
5G mmWAVE COOLING THROUGH PCB

Abstract:

Embodiments of the invention include a mmWave transceiver and methods of forming such devices. In an embodiment, the mmWave transceiver includes an RF module. The RF module may include a package substrate, a plurality of antennas formed on the package substrate, and a die attached to a surface of the package substrate. In an embodiment, the mmWave transceiver may also include a mainboard mounted to the RF module with one or more solder balls. In an embodiment, a thermal feature is embedded within the mainboard, and the thermal feature is separated from the die by a thermal interface material (TIM) layer. According to an embodiment, the thermal features are slugs and/or vias. In an embodiment, the die compresses the TIM layer resulting in a TIM layer with minimal thickness.