SSLS' technology basis in micro/nanofabrication encompasses the full LIGA process in a class 1000 cleanroom. This technology is used for an R & D programme and for foundry-type work for commercial customers. R & D achievements include the development of the first electromagnetic metamaterials for the terahertz spectral range up to the near infrared. Complementing micro/nanofabrication, SSLS is exploiting its portfolio of synchrotron radiation methods for the characterisation of key properties of the micro/nanodevices as exemplified by the infrared spectroscopy of the THz electromagnetic metamaterials or of diffractive optical elements for Fourier transform spectroscopy.