Multi-layer film capacitor structures and method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5745335
SERIAL NO

08671057

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A multi-layer film capacitor structure has a bottom electrode layer on a monolithic substrate, intermediate pairs of layers of film electrode and dielectric material overlying the bottom electrode, and a top pair of layers of a film electrode and film dielectric overlying the intermediate pairs. The structure preferably has a mesa configuration, in which each electrode layer extends laterally beyond the periphery of the layers above it around the entire periphery of the device. Each electrode layer therefore has a top surface which is accessible at its projecting edge through a via, so that the electrodes can be accessed in any combination to permit any desired circuit connection. If desired the dielectric materials can have different frequency characteristics, allowing a single capacitor structure to be optimized for a filter. Either the bottom electrode or the top electrode or both can be grounded and capacitor connections can be made to intermediate layers, to reduce parasitic capacitance effects.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
BLACKBERRY LIMITED295 PHILLIP STREET WATERLOO N2L 3W8

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Watt, Michael Man-Kuen North York, CA 2 109

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation