Blackberry Corporation

Research in Motion Corporation

Cameron Russell Steeves

Eric Gary Malo

Hassan Daniel Hosseinpor

Arnett Ryan Weber

Todd Robert Paleczny

Dietmar Frank Wennemer

Patrick Clement Strittmatter

An electrical assembly having controlled impedance signal traces and a portable electronic device comprising an electrical assembly having controlled impedance signal traces are provided. In accordance with one embodiment, there is provided a portable electronic device, comprising an electrical assembly, comprising: a chassis made from a conductive material and forming a first ground plane; a first dielectric substrate layer overlaying the chassis; a first signal trace overlaying the first dielectric substrate layer; and a second dielectric layer overlaying the first signal trace.

Electrical assembly having impedance controlled signal traces

A piezoelectric assembly is provided, including an electrode assembly, a signal electrical connector, and a reference electrical connector. The electrode assembly includes a first electrode, a second electrode, and a piezoelectric material. The signal electrical connector is in electrical communication with the first electrode and configured to be connected to the current or voltage source so as to provide electrical communication with a current or voltage source. The reference electrical connector is in electrical communication with the second electrode and configured to be connected to the reference source so as to provide electrical communication with a reference source. One of the signal electrical connector and the reference electrical connector includes a metal shim for supporting the electrode assembly. A flexible printed circuit board is provided including a trace. An interconnecting structure effects electrical communication between the trace and the metal shim. The interconnecting structure is disposed within a passage provided between a first side surface and an opposite second side surface of the flexible printed circuit board, and extends through the first side surface to provide a coupling structure coupled to the metal shim at a coupling structure surface interface, and also extends through the second side surface to provide a retainer disposed in opposition to the first side surface to provide a retainer disposed in opposition to the first side surface.

Piezoelectric assembly

A piezoelectric assembly is described. In accordance with one embodiment, there is provided a piezoelectric assembly comprising: an electrode assembly; a signal electrical connector electrically connected to the electrode assembly; a reference electrical connector electrically connected to the electrode assembly; and a spacer positioned about a perimeter of the electrode assembly and disposed between the signal electrical connector and the reference electrical connector such that no electrical communication is provided between the signal electrical connector and the reference electrical connector through the spacer; wherein a humidity barrier space is defined between the signal electrical connector, the reference electrical connector and the spacer, and wherein the electrode assembly is disposed in the humidity barrier space.

An electrical assembly having controlled impedance signal traces and a portable electronic device comprising an electrical assembly having controlled impedance signal traces are provided. In accordance with one embodiment, there is provided an electrical assembly, comprising: a chassis for mounting electronic components, the chassis being made from a conductive material and forming a first ground plane; a first dielectric layer overlaying the chassis; a first signal trace overlaying the first dielectric layer; and a second dielectric layer overlaying the first signal trace.

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Waterloo, Canada

Cameron Russell Steeves