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Fluid-suspended microcomponent harvest, distribution, and reclamation

  • US 10,242,977 B2
  • Filed: 12/12/2017
  • Issued: 03/26/2019
  • Est. Priority Date: 10/31/2014
  • Status: Active Grant
First Claim
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1. A fluid-suspended microcomponent management method, the method comprising:

  • providing a first reservoir containing a first solution;

    providing a magnetic collection head;

    suspending a plurality of magnetically polarized microcomponents in the first solution, where each microcomponent has a maximum cross-section of 150 micrometers (μ

    m), a maximum mass of 1 microgram, a planar soft ferromagnetic layer thickness in a range of 50 to 2000 nanometers (nm), and a magnetic polarization selected from the group consisting of aligned in parallel with the soft ferromagnetic layer and orthogonal to the soft ferromagnetic layer;

    inducing a magnetic field in the collection head;

    exposing the microcomponents to the magnetic field; and

    ,fixing a plurality of microcomponents in position on a collection surface in response to the magnetic field.

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