Differential signal transmission cable
AssigneeSumitomo Electric Industries, Ltd.
InventorsKengo GOTO, Takayuki ONISHI, Koji KASUYA, Kei HIRAI, Takashi SEKIYA, Yuji OCHI, Yuto KOBAYASHI
Life of this patent
Estimating the term…
Abstract
A differential signal transmission cable includes: an insulating layer that extends in a longitudinal direction of the differential signal transmission cable; a pair of signal lines that extend in the longitudinal direction and are embedded in the insulating layer; and a shield layer that covers an outer peripheral surface of the insulating layer. The shield layer includes an electroless plating layer containing copper and alloy elements. The types and contents of the alloy elements are selected such that a tensile stress acts on the shield layer.
Claims9
A differential signal transmission cable comprising:
- an insulating layer that extends in a longitudinal direction of the differential signal transmission cable;
- a pair of signal lines that extend in the longitudinal direction and are embedded in the insulating layer;
- and
- a shield layer that covers an outer peripheral surface of the insulating layer,
- the shield layer including an electroless plating layer containing copper and an alloy element, and
- a type and a content of the alloy element being selected such that a tensile stress acts on the shield layer.
A differential signal transmission cable comprising:
- an insulating layer that extends in a longitudinal direction of the differential signal transmission cable;
- a pair of signal lines that extend in the longitudinal direction and are embedded in the insulating layer;
- and
- a shield layer that covers an outer peripheral surface of the insulating layer,
- a hardness of the insulating layer being greater than or equal to 0.020 GPa, and
- a hardness of the shield layer being less than or equal to 4.0 GPa.
A differential signal transmission cable comprising:
- an insulating layer that extends in a longitudinal direction of the differential signal transmission cable;
- a pair of signal lines that extend in the longitudinal direction and are embedded in the insulating layer;
- and
- a shield layer that covers an outer peripheral surface of the insulating layer,
- the shield layer containing copper, and
- a crystallite size of copper in the shield layer being greater than or equal to 20 nm and less than or equal to 75 nm.
Dependencies are inferred from the claim text.