5Janak Singh, Sudhir Chandra, Ami Chand. Strain studies in LPCVD polysilicon for surface micromachined deVices [J]. Sensors and Actuators, 1999, 77 : 133 - 138.
6Mari Ylonen, Altti Torkkeli, Hannu Kattelus, et al. In site boron doped LPCVD polysilicon with low tensile stress for MEMS applications [J]. Appl Phys Lett, 2003, 109:79 -87.