The systems and methods include multiple processors that each couple to receive commands and data, where the commands andor data correspond to frames of video that include multiple pixels. Rotation of the impeller creates a low-pressure zone allowing gas conveyed via gas conveyance tube to come into contact with rotating impeller forming a gas-liquid mixture at the impeller interface wherein bubbles are formed. The first stacked die is stacked on the base die in a single pass through a die attach machine without first storing or otherwise processing the base diesubstrate assembly in a separate machine. Moreover, the phase changeable layer also may be provided at least partially in the contact hole.