Nano fabrication

 The clean room.

The clean room.

 Patterns on nine glass slides, set onto a silicon wafer which has been spin-coated with a polymer resin, ready for electrobeam lithography.

Patterns on nine glass slides, set onto a silicon wafer which has been spin-coated with a polymer resin, ready for electrobeam lithography.

 After electrobeam lithography the glass slides are removed from the wafer and a developer is used to remove the polymer strands cut by the laser, to reveal the pattern. There are so many different kinds of tweezers in this room. 

After electrobeam lithography the glass slides are removed from the wafer and a developer is used to remove the polymer strands cut by the laser, to reveal the pattern. There are so many different kinds of tweezers in this room. 

 Paul and I review the resulting patterns on the scanning electron microscope (SEM) 

Paul and I review the resulting patterns on the scanning electron microscope (SEM) 

 One of the new patterns - each dot is 70 nanometers in diameter : that's 0.00007mm (!)

One of the new patterns - each dot is 70 nanometers in diameter : that's 0.00007mm (!)