Aperture strips with hole dimensions of less than 10 m are extremely difficult to produce by conventional mechanical methods.
By using lithography techniques, holes as small as 5 m are possible.

Such strips are made of copper and can be coated with a thin layer of gold or platinum.
Experience shows that these apertures have a long lifetime in the electron microscope.

Listed below are some patterns that we manufacture.

Other designs are available to fit Hitachi, ISI/ABT/Topcon and FEI/Philips instruments.
Alternatively, multi-hole strips can be made to a particular specification.

Please ask for details.