Abstract:
Formulations for voltage switchable dielectric materials include two or more different types of semiconductive materials uniformly dispersed within a dielectric matrix material. The semiconductive materials are selected to have different bandgap energies in order to provide the voltage switchable dielectric material with a stepped voltage response. The semiconductive materials can comprise inorganic particles, organic particles, or an organic material that is soluble in, or miscible with, the dielectric matrix material. Formulations optionally can also include electrically conductive materials. At least one of the conductive or semiconductive materials in a formulation can comprise particles characterized by an aspect ratio of at least 3 or greater.
Abstract:
Various aspects provide for incorporating a VSDM into a substrate to create an ESD-protected substrate. In some cases, a VSDM is incorporated in a manner that results in the ESD-protected substrate meeting one or more specifications (e.g., thickness, planarity, and the like) for various subsequent processes or applications. Various aspects provide for designing a substrate (e.g., a PCB) incorporating a VSDM, and adjusting one or more aspects of the substrate to design a balanced, ESD-protected substrate. Certain embodiments include molding a substrate having a VSDM layer into a first shape.
Abstract:
Systems and methods include depositing one or more materials on a voltage switchable dielectric material. In certain aspects, a voltage switchable dielectric material is disposed on a conductive backplane. In some embodiments, a voltage switchable dielectric material includes regions having different characteristic voltages associated with deposition thereon. Some embodiments include masking, and may include the use of a removable contact mask. Certain embodiments include electrografting. Some embodiments include an intermediate layer disposed between two layers.
Abstract:
Systems and methods include depositing one or more materials on a voltage switchable dielectric material. In certain aspects, a voltage switchable dielectric material is disposed on a conductive backplane. In some embodiments, a voltage switchable dielectric material includes regions having different characteristic voltages associated with deposition thereon. Some embodiments include masking, and may include the use of a removable contact mask. Certain embodiments include electrografting. Some embodiments include an intermediate layer disposed between two layers.
Abstract:
Systems and methods include depositing one or more materials on a voltage switchable dielectric material. In certain aspects, a voltage switchable dielectric material is disposed on a conductive backplane. In some embodiments, a voltage switchable dielectric material includes regions having different characteristic voltages associated with deposition thereon. Some embodiments include masking, and may include the use of a removable contact mask. Certain embodiments include electrografting. Some embodiments include an intermediate layer disposed between two layers.
Abstract:
A composition of voltage switchable dielectric (VSD) material that comprises Boron. According to embodiments, VSD material is formulated that includes particle constituents that include one or more of Boron-nitride polymers, Boron nanotubes, and/or Boron nanoparticles.
Abstract:
A composition is provided that includes a polymer binder, and one or more classes of particle constituents. At least one class of particle constituents includes semiconductive particles that individually have a band gap that is no greater than 2 eV. As VSD material, the composition is (i) dielectric in absence of a voltage that exceeds a characteristic voltage level, and (ii) conductive with application of said voltage that exceeds the characteristic voltage level.
Abstract:
A substrate device is designed by identifying one or more criteria for handling of a transient electrical event on the substrate device. The one or more criteria may be based at least in part on an input provided from a designer. From the one or more criteria, one or more characteristics may be determined for integrating VSD material as a layer within or on at least a portion of the substrate device. The layer of VSD material may be positioned to protect one or more components of the substrate from the transient electrical condition.
Abstract:
A wireless communication device, such as an RFID tag, is provided material that is dielectric, unless a voltage is applied that exceeds the materials characteristic voltage level. In the presence of such voltage, the material becomes conductive. The integration of such material into the device may be mechanical and/or electrical.
Abstract:
Embodiments described herein provide for flexible circuits and flexible substrates comprising VSD material that has superior characteristics for its use as an integral structural component of a device.