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AssigneePackard Hughes Interconnect Company
InventorsChris M. Schreiber, Eric Dean Jensen, Bao Le
Estimating the term…
A variable rate pressure sensitive electrical device or switch. The switch includes a first substrate and a plurality of electrical circuit traces thereon. A first electrical trace is provided having a first set of raised contact features or bumps projecting from a prevalent planar portion of first electrical trace. At least a second electrical trace is provided having a second set of raised contact features or bumps extending above a planar portion of second electrical trace. The first and second electrical traces and associated raised contact features are constructed and arranged so that the height of the first set of raised contact features is greater than the height of the second set of raised contact features. A second substrate is provided with an electrically conductive element. At least one of the first and second substrates is deflectable and at least one of the first and second substrates is moveable with respect to the other so that the second substrate can make contact with the first set of raised contact features in a first position, and in a second position the second substrate can make contact with both sets of raised features to provide an electrical path across the first and second electrical traces.
An electrical device comprising:
An electrical device comprising a first substrate having a first electrical trace on the first substrate, the first electrical trace having a first set of raised electrical contact features extending above a planar portion of the first electrical trace, a second electrical trace on the first substrate, the second electrical trace having a second set of raised electrical contact features extending above a planar portion of the second electrical trace, the second set of raised electrical contact features having a height less than the first set of raised electrical contact features in relationship to the surface of the first substrate on which the electrical traces are carried,
An electrical switch comprising a first substrate having a first electrical trace thereof, the first electrical trace having a first set of raised electrical contact features extending above a planar portion of the electrical trace, the first electrical trace providing an in-line source of current to the switch, a second electrical trace on the first substrate, the second electrical trace having a second set of raised electrical contact features extending above a planar portion of the second electrical trace, a third electrical trace on the first substrate and having a third set of raised electrical contact features of a height different than the second set of raised electrical contact features, the third electrical trace having a second resistance which is different than the resistance for the second electrical trace,
Dependencies are inferred from the claim text.