A 3D heterogeneously integrated guidance, navigation, and control micro-system

A GNC micro-system which is developed by 3D heterogeneous integration is presented in this paper. The SRAM, SoC, and FPGA chips are integrated onto a silicon interposer. Other chips are mounted on different MCM substrates. The whole 3D GNC micro-system is packaged using POP technology. The volume is reduced from 120 × 120 × 80 mm³ to 40 × 40 × 23 mm³, and the weight is reduced from 1.5 kg to 300 g. The stability of the three axis gyroscopes in the GNC micro-system is 3.11° h^-1, 3.25° h^-1 and 4.26° h^-1, and the accuracy is <5° h^-1. The positioning output stability of the satellite navigation receiver is better than 1 m under static conditions.