Design and optimization of micro-semiconductor bridge used for solid propellant microthrusters arrayChengbo Ru, Ji Dai, Jianbing Xu, Yinghua Ye, Peng Zhu and Ruiqi ShenEur. Phys. J. Appl. Phys., 74 3 (2016) 30103DOI: https://doi.org/10.1051/epjap/2016160003