Flexible harness and electrical connector cable using same
AssigneeHitachi Cable, Ltd.
InventorsTakahiro Sugiyama, Hideki Nounen
Life of this patent
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Abstract
There is provided a flexible harness adapted to be detachably connected to electrode pads of an electric/electronic component. The flexible harness according to the present invention comprises: a flexible insulator film; a conductor pattern formed on the flexible insulator film; a terminal plane which is an end region of the conductor pattern; and ball-like contact bumps formed on the terminal plane. Each contact bump includes a core made of an elastically deformable resin and an electrical conductor layer surrounding the core.
Claims17
A flexible harness adapted to be detachably connected to electrode pads of an electric/electronic component, the flexible harness comprising:
- a flexible insulator film;
- a conductor pattern formed on the flexible insulator film;
- a terminal plane which is an end region of the conductor pattern;
- and
- ball-like contact bumps formed on the terminal plane, each contact bump including a core made of an elastically deformable resin and an electrical conductor layer surrounding the core such that a detachable connection will be formed between the ball-like contact bumps and electrode pads of an electric/electronic component and the detachable connection will be free of a solder connection between the ball-like contact bumps and the electrode pads,
- wherein the ball-like contact bumps are fixed to the terminal plane by soldering, and a solder connection between at least one ball-like contact bump of the ball-like contact bumps and the terminal plane is thicker than at least one other solder connection between at least one other ball-like contact bump of the ball-like contact bumps and the terminal plane.
An electrical connector cable adapted to be detachably connected to electrode pads of an electric/electronic component, the electrical connector cable comprising:
- a flexible harness including:
- a flexible insulator film;
- a conductor pattern formed on the flexible insulator film;
- a terminal plane which is an end region of the conductor pattern;
- and
- ball-like contact bumps formed on the terminal plane, each contact bump including a core made of an elastically deformable resin and an electrical conductor layer surrounding the core, wherein the ball-like contact bumps are fixed on the terminal plane by solder, and a solder connection between at least one ball-like contact bump of the ball-like contact bumps and the terminal lane is thicker than at least one other solder connection between at least one other ball-like contact bump of the ball-like contact bumps and the terminal plane;
- a first sheet disposed adjacent to the surface of the insulator film opposite the surface including the terminal plane, the first sheet being made of an elastic material with a low modulus of elasticity;
- a first plate which is disposed over the first sheet and is for pushing together the first sheet and the terminal plane against the electrode pads, the first plate being made of a rigid material with a high modulus of elasticity;
- and
- a fastening jig for fastening together the first plate, the first sheet, the contact bumps on the terminal plane, and the electrode pads on the electric/electronic component,
- wherein a detachable connection will be formed between the ball-like contact bumps and the electrode pads of the electric/electronic component and the detachable connection will be free of a solder connection between the ball-like contact bumps and the electrode ads.
An assembly between a flexible harness and electrode pads of an electric/electronic component, the assembly comprising:
- a flexible harness having a flexible insulator film, a conductor pattern formed on the flexible insulator film, a terminal plane as an end region of the conductor pattern, and ball-like contact bumps fixed on the terminal plane, wherein each contact bump of the ball-like contact bumps includes a core made of an elastically deformable resin and an electrical conductor layer surrounding the core, wherein the ball-like contact bumps are fixed on the terminal plane by solder, and a solder connection between at least one ball-like contact bump of the ball-like contact bumps and the terminal plane is thicker than at least one other solder connection between at least one other ball-like contact bump of the ball-like contact bumps and the terminal plane;
- an electric/electronic component having electrode pads;
- a detachable electrical connection between the ball-like contact bumps and the electrode pads, wherein the detachable electrical connection is free of a solder connection between the ball-like contact bumps and the electrode pads.
Dependencies are inferred from the claim text.