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Device applications for voltage switchable dielectric material having high aspect ratio particles

  • US 7,968,014 B2
  • Filed: 02/10/2010
  • Issued: 06/28/2011
  • Est. Priority Date: 07/29/2006
  • Status: Expired due to Fees
First Claim
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1. A device comprising:

  • a layer of voltage switchable dielectric (VSD) material, wherein the VSD material comprises;

    a polymer binder;

    a first set of particles consisting of nanoscale high aspect ratio (HAR) particles that are conductive or semi-conductive, the first set of nanoscale HAR particles dispersed within the binder; and

    a second set of particles, other than said first set of nanoscale HAR particles, consisting of conductor and/or semiconductor particles;

    said second set of conductor and/or semiconductor particles dispersed within the binder;

    wherein an amount of particles dispersed in the binder, including the first set of nanoscale HAR particles and the second set of conductor and/or semiconductor particles, is sufficiently low so that a percolation threshold of the VSD material is not reached.

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