The composition and feature of LIGA technology was explicated. The principles of LIGA process on mask
X-ray lithography
electroform and model were analyzed. The X-ray lithography mask using polyamide as substrate and using Au as a absorber was fabricated by one step forming. The synchronous radiation X-ray lithography experiment using this kind of mask was made in Beijing Key Lab of the Synchronous Radiation. The PMMA linkage structure of micro electromagnetic motor with depth of 500μm and depth width radio of 8.3 was made. The SEM photo of X-ray lithography and mask was given. The electroform technique of Au and Ni metal thick film were studied