Parallel-gap resistance microwelding for deformable mirror manufacturing

Creation of reliable electrical connection on piezoceramic disk in bimorph deformable mirror is very important and challenging task, especially for small-aperture piezoelectric wavefront correctors. We propose to use parallel-gap resistance microwelding as an effective tool to achieve a good quality of bonding between wire and piezodisk surface and to increase tensile strength of contact in the Ag-Cu (silver-copper) system.