Formulations for voltage switchable dielectric materials having a stepped voltage response and methods for making the same
US8723153B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Apr 14, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S438/90
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
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 may 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.