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US 5,098,305 AGranted
Memory metal electrical connector
AssigneeCray Research, Inc.
InventorsNicholas J. Krajewski, David J. Johnson, Arthur O. Kunstmann
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AssigneeCray Research, Inc.
InventorsNicholas J. Krajewski, David J. Johnson, Arthur O. Kunstmann
Estimating the term…
A method and apparatus for interconnecting circuit board assemblies using memory metal wires mechanically inserted into through-plated holes. The invention has its application in the interconnection of stacked circuit board assemblies where kinked memory metal wires are stretched so the wires are substantially straight; inserted into axially aligned through-plated holes of circuit boards; and released so that the memory metal wires reform their original kinked shaped within the through-plated holes, forming an electrical connection between the circuit boards. Memory metal alloys are used in the construction of the kinked memory metal wires to take advantage of the pseudoelastic behavior of the alloys in the austenitic phase below the forming temperature range.
An electrical connector for use in forming an electrical connection between through-plated holes of a plurality of electronic circuit assemblies comprising a memory metal wire formed substantially of metal exhibiting a shape-memory effect having a generally linear shape along a longitudinal axis including a plurality of off-axis displacements formed as a continuous part of said wire and adapted for making electrical contact within the through-plated holes.
An electrical connector for use in forming an electrical connection between through-plated holes of a plurality of electronic circuit assemblies comprising a memory metal wire formed substantially of metal having a shape-memory effect having a generally linear shape along a longitudinal axis including a plurality of off-axis displacements formed as a continuous part of said wire and adapted for making electrical contact within the through-plated holes, wherein said memory metal wire is comprised of an alloy exhibiting martensitic transformation behavior.
An electrical connector for use in forming an electrical connection between through-plated holes of a plurality of electronic circuit assemblies comprising a memory metal wire formed substantially of metal having a shape-memory effect having a generally linear shape along a longitudinal axis including a plurality of off-axis displacements formed as a continuous part of said wire and adapted for making electrical contact within the through-plated holes, wherein said memory metal wire is comprised of an alloy exhibiting a pseudoelastic behavior.
An electrical connector comprising a plurality of electronic circuit assemblies each having a through-plated hole and an irregularly-shaped memory metal wire formed substantially of metal exhibiting a shape-memory effect having a generally linear shape along a longitudinal axis including a plurality of off-axis displacements formed as a continuous part of said wire and placed within said through-plate hole of each assembly.
An electrical connector comprising a plurality of electronic circuit assemblies each having a through-plated hole and an irregularly-shaped memory metal wire formed substantially of metal exhibiting a shape-memory effect having a generally linear shape along a longitudinal axis including a plurality of off-axis displacements formed as a continuous part of said wire and placed within said through-plated hole of each assembly, wherein said irregularly-shaped memory metal wire is comprised of an alloy exhibiting martensitic transformation behavior.
An electrical connector comprising a plurality of electronic circuit assemblies each having a through-plated hole and an irregularly-shaped memory metal wire formed substantially of metal exhibiting a shape-memory effect having a generally linear shape along a longitudinal axis including a plurality of off-axis displacements formed as a continuous part of said wire and placed within said through-plated hole of each assembly, wherein said shaped memory metal wire is comprised of an alloy exhibiting a pseudoelastic behavior.
A method electrically connecting electronic circuit assemblies comprising the steps of:
A method of electrically connecting two or more circuit boards comprising the steps of:
An interconnection apparatus comprising a plurality of circuit boards having at least one through-plated hole on each circuit board and axially aligned with one another;
An interconnection apparatus comprising a plurality of circuit boards having at least one through-plated hole on each circuit board and axially aligned with one another;
An interconnection apparatus comprising a plurality of circuit boards having at least one through-plated hole on each circuit board and axially aligned with one another;
An interconnection apparatus comprising a plurality of circuit boards having at least one through-plated hole on each circuit board and axially aligned with one another;
A method of electrically connecting an interconnection apparatus, said apparatus comprising;
A method of electrically connecting an interconnection apparatus between a plurality of circuit boards having at least one through-plated hole on each circuit board and axially aligned with one another;
Dependencies are inferred from the claim text.