Edwards and the Edwards logo are trademarks of Edwards Limited. This manual provides installation, operation and maintenance instructions for the Edwards 306 Thermal Evaporator. Standard Operating Procedure. These instructions are intended for reference only, and will not replace. An Edwards 306 vacuum thermal evaporation system with turbopump shown below and including: • Bell jar evaporator with two thermal sources. The 306A is a manually controlled thermal evaporator, uses a standard resistive filament evaporation source (up to 90Amp), and quartz bell jar depositionThe Edwards E306A Thermal Evaporator will evaporate a metal film over a semiconductor or metal substrate. The metal source to be evaporated is placed in a. Edwards Vacuum Carbon Coater E306 Operating Manual Read and understand these instructions completely before beginning coating, then follow them precisely.