Termination of a small coaxial cable
AssigneeAMP Incorporated
InventorDimitry G. Grabbe
Life of this patent
Estimating the term…
Abstract
A small ferrule having inwardly projecting lances is clenched about a small coaxial cable. The tips of the lances pierce the outer plastic covering of the cable and mechanically engage the underlying metal shield layer. Each lance includes an opening adjacent thereto through which a laser beam is directed to disintegrate a portion of the plastic layer adjacent the lance. Solder paste is then deposited into the opening and heated to cause the solder to reflow and form a low-resistance contact between each lance and an adjacent portion of the shield.
Claims10
A terminal for the shield of a coaxial cable which comprises an inner conductor, an inner dielectric layer surrounding the inner conductor, a metallic shield surrounding the inner dielectric layer, and an outer dielectric covering over the metallic shield, the termination comprising:
- (a) a ferrule surrounding the outer dielectric covering of a coaxial cable the ferrule having a portion projecting inwardly from an inner surface of a wall of said ferrule through said outer dielectric covering;
- (b) said portion of said ferrule having a tip in mechanical contact with the metallic shield of the coaxial cable;
- (c) an opening through said wall adjacent said tip;
- and
- (d) an electrically conductive material in said opening in low-resistance contact with both said tip and a portion of said metallic shield adjacent said tip.
A method of terminating the metallic shield of a coaxial cable comprising:
- (a) providing a strip of conductive material;
- (b) forming a portion thereof projecting from a surface of said strip, said portion having a tip remote from said surface, an opening through said strip adjacent said portion of said strip;
- (c) forming said strip into a ferrule about a coaxial cable and clenching in place so that said tip projects inwardly and into mechanical contact with the metallic shield of the coaxial cable;
- and
- (d) depositing an electrically conductive material within said opening in low-resistance contact with both said tip and a portion of said metallic shield adjacent said tip.
Dependencies are inferred from the claim text.