microwave absorbing ceramics, lossy dielectrics, and insulators for vacuum electronics, particle accelerators, and radio frequency devices. Sienna Technologies also supplies high temperature stable catalysts, thruster components, and electric propulsion insulators for chemical and electric space propulsion. In addition, it provides metallization, thick film, and brazing technologies and designs ceramic packages and modules for electronic devices operating in harsh environments. Its services span product development from design and prototyping through full scale manufacturing.