US 4,908,258 A · High dielectric constant flexible sheet material

Abstract

A high capacitance flexible dielectric sheet material is comprised of a monolayer of multilayer or single layer high dielectric (for example ceramic) chips or pellets of relatively small area and thickness which are arranged in a planar array. These high dielectric constant chips are spaced apart by a small distance. The spaces between the chips are then filled with a flexible polymer/adhesive to define a cohesive sheet with the polymer binding the array of high dielectric (for example ceramic) chips together. Next, the opposite planar surfaces of the array (including the polymer) are electroless plated or electroded by vacuum metal deposition, or sputtering, to define opposed metallized surfaces. The end result is a relatively flexible high capacitance dielectric film or sheet material which is drillable, platable, printable, etchable, laminable and reliable.

Claims13

Dependent claims

A high dielectric constant flexible sheet comprising:

an array of spaced high dielectric chips arranged in a single layer, each of said chips having side, top and bottom surfaces;
a binder comprising a flexible thermoplastic polymer or a flexibilized thermoset polymer between said side surfaces of said chips and binding said chips to define a cohesivesheet having opposed first and second planar surfaces with said top and bottom surfaces of said chips being exposed on said respective first and second surfaces;
a first metallized layer on said first planar surface;
and
a second metallized layer on said second planar surface.

2 more elements

Dependencies are inferred from the claim text.

High dielectric constant flexible sheet material

Life of this patent

High dielectric constant flexible sheet material

Life of this patent

Abstract

Claims13