"Small, smaller, smallest" using laser technology

At the Hannover Fair 2006 (April 24-28), the Laser Zentrum Hannover e. V. (LZH) shows that laser technology is ready for use in micro and nanoprocessing. Some of the smallest objects worth seeing at the booth (hall 14, booth H 36) are:

  • A microsystem with cogwheels as small as dust particles
  • A windmill of 1 mm height with a rotatable wheel, or the worldwide smallest easter bunnies (approximate length: 35 µm)
  • Rice grains marked with a cooking recipe
  • Solar cells that are laser drilled, thus more efficient
  • Microcircuits on bended surfaces
  • Microjoining of electronic components


There are certainly also larger components on display, for instance laser welded crane arms or automotive components. The smallest exhibits, however, are not discernible anymore with the human eye. Nanoparticles which improve the properties of surgical instruments or other medical products can be viewed through a scanning electron microscope. To illustrate the size: 2,500,000,000 nanoparticles fit on the period at the end of this sentence.

Business Development & Communications Department
Michael Botts
Public Relations
Tel.: +49 511 2788-151
Fax: +49 511 2788-100
The Laser Zentrum Hannover e.V. (LZH) carries out research and development in the field of laser technology and is supported by the Ministry of Economic Affairs, Labour and Transport of the State of Lower Saxony (Niedersächsisches Ministerium für Wirtschaft, Arbeit und Verkehr).