Manufacturable tri-stack AlSb/INAS HEMT low-noise amplifiers using wafer-level-packaging technology for light-weight and ultralow-power applications

A wafer-level-packaging technology was used to integrate the 0.1 µm AlSb/InAs HEMT low-noise amplifiers with power amplifiers, switches and phase shifters to form a compact tri-stack transmit/receive module for light-weight and ultralow-power applications. The high manufacturability of AlSb/InAs HEMT receivers operating at 0.9 mW was demonstrated on a tri-stack wafer. This demonstration of manufacturable tri-stack transmit/receive modules is essential for phased-array applications requiring light weight and ultralow power.