Back to results
US 2011/0211319 A1Published application
Electric discharge protection for surface mounted and embedded components
AssigneeLittelfuse, Inc.
InventorsLex Kosowsky, Robert Fleming, Bhret Graydon, Daniel Vasquez
Life of this patent
Estimating the term…
Abstract
Printed circuit boards including voltage switchable dielectric materials (VSDM) are disclosed. The VSDMs are used to protect electronic components, arranged on or embedded in printed circuit boards, against electric discharges, such as electrostatic discharges or electric overstresses. During an overvoltage event, a VSDM layer shunts excess currents to ground, thereby preventing electronic components from destruction or damage.
Claims20
A printed circuit board, comprising:
- at least one conductor;
- a voltage switchable dielectric material (VSDM) applied to the at least one conductor;
- and
- an electronic component having at least one lead, wherein the at least one lead is electrically coupled to the VSDM.
1 more element
A printed circuit board, comprising:
- at least one non-conductive layer;
- at least one conductor;
- a voltage switchable dielectric material (VSDM) applied to at least one of the non-conductive layers;
- and
- an electronic component having at least one lead, wherein the at least one lead is electrically coupled to the VSDM.
2 more elements
Dependencies are inferred from the claim text.