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Low phosphorus containing band-shaped and/or filamentary material
| Details |
Inventors: Hiesbock, Heinz G.; Bartl, Karl;
Assignee: Karl Neumayer, Erzeugung und Vertrieb von Kabeln, Drahten isolierten (Gunselsdorf, AT)
Primary Examiner: Zimmerman; John J.
Assistant Examiner:
Attorney, Agent or Firm: Fleit, Jacobson, Cohn, Price, Holman & Stern
A band-shaped and/or filamentary material, having a phosphorus containing metal and/or metal alloy inner layer such as phosphor bronze, deoxidized copper or other similar phosphorus containing material, and a lead alloy outer layer, particularly a lead-tin alloy, wherein the phosphorus content of the inner layer is between 0.03 and 0.13 weight percent. In the preferred embodiment, the amount of phosphorus in the inner layer is between 0.05 and 0.06 weight percent. Electrical conductors and electronic components of this band-shaped and/or filamentary material are also disclosed. |
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DETAILED DESCRIPTION It is an object of the invention to eliminate the disadvantages associated with prior compositions, which have preferably been used as solderable materials.
It is a further object to provide a band-shaped and/or filamentary material with an inner layer of a metal and/or metal alloy and an outer layer, in which the aging process relating to the loss of solderability takes place at a considerably slower rate, so slowly that solderability will be maintained during usual time periods of up to one year between production and processing of the material.
It is an additional object of the present invention to provide a barrier layer of metal between the metal and/or metal alloy inner layer and the outer layer of the inventive material to further extend the storage period of the material.
It is still another object of the invention to provide electrical conductors and electronic components comprising the inventive material, wherein solderability of the material of the invention is retained for extended periods of storage time.
The band-shaped and/or filamentary materials of the present invention are particularly suitable for use as electrical conductors, e.
g.
, connection leads, pins, plug contacts, relay connector pins, terminal pins and the like, in electronic components such as capacitors, semiconductor chips and transformers The materials of the present invention are also useful as pins in pin connectors, which pin connectors may be electronic components per se or may be soldered with printed circuit boards.
Electrical conductors comprising a band-shaped and/or filamentary material of this invention have an extended shelf-life and exhibit good solderability when inserted into an electronic component by soldering, regardless of the length of the storage period of the electrical conductor.
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Quantum Computing 
