‘Electroadhesive’ stamp picks up and puts down microscopic structures: New technique could enable assembly of circuit boards and displays with more minute components

ScienceDaily | Oct 12, 2019 at 8:46 AM
  • As circuit boards are packed with ever smaller components, however, robotic grippers’ ability to manipulate these objects is approaching a limit.
  • Now Kim, Hart, and others have developed a miniature “electroadhesive” stamp that can pick up and place down objects as small as 20 nanometers wide — about 1,000 times finer than a human hair.
  • When a small voltage is applied to the stamp, the carbon nanotubes become temporarily charged, forming prickles of electrical attraction that can attract a minute particle.