IP Library Granted Patent US 8,440,911
Granted Patent B2
US 8,440,911 · App. 12/863,379 · Granted May 14, 2013

Flat cable

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Quick Facts
Patent No.
US 8,440,911
App. No.
12/863,379
Granted
May 14, 2013
Kind
B2
Abstract

A flexible flat cable having good flexibility and bending resistance without deterioration of a good electrical characteristic of a strip structure and capable of enhancing cost effectiveness is provided. The flexible flat cable includes: a first shield member and a second shield member disposed in such a manner as to cover a surface of a cable body including a plurality of conductors arranged in parallel with a prescribed pitch therebetween. Each of the first and second shield members includes a metal member formed by placing a conductive adhesive layer placed between a plurality of metal layers, and allows one of outer most layers of the metal layers to be conductively connected with a ground layer.

Claims (18)

1. A flat cable comprising:

a cable body including a plurality of conductors arranged with a prescribed pitch therebetween;

a ground layer disposed to the cable body; and

a shield member disposed in such a manner as to cover a surface of the cable body,

wherein the shield member includes a metal member formed by placing a first conductive adhesive layer between a plurality of metal layers, and enables one of the metal layers to be conductively connected with the ground layer, and

wherein the first conductive adhesive layer is made of a pliable material and each of the metal layers has a thickness of 0.05 μm to 0.5 μm.

2. The flat cable according claim 1 , wherein the metal member is formed by placing the first conductive adhesive layer between two of the plurality of metal layers.

3. The flat cable according to claim 1 , wherein the shield member enables one of the metal layers to be conductively connected to the ground layer through a second conductive adhesive layer.

4. The flat cable according to claim 1 , wherein the first conductive adhesive layer has a thickness ranging from 10 μm to 50 μm.

5. The flat cable according to claim 1 , wherein the first conductive adhesive layer is an anisotropic conductive adhesive agent.

6. The flat cable according to claim 1 , wherein the metal layer is formed as any of a metal foil, a vapor-deposited metal layer, and a metal plated layer.

7. The flat cable according to claim 1 , wherein the metal layer includes silver.

8. The flat cable according to claim 1 , wherein the shield member includes a protection base material laminated on one of surfaces of the metal member.

9. The flat cable according to claim 8 , wherein the protection base material is polyethylene terephthalate.

10. The flat cable according to claim 1 , further comprising an air-containing layer, serving as an insulating member, having a width substantially the same as a transmission path width of the cable body, the air-containing layer being disposed in such a manner as to sandwich the cable body from both sides,

wherein the air-containing layer includes a non-woven fabric cut in a width substantially the same as the transmission path width of the cable body, and

wherein the shield member covers a surface of the air-containing layer and is disposed in such a manner as to be conductively connected with the ground layer at terminal portions of respective both ends of the cable body.

11. The flat cable according to claim 10 , wherein the non-woven fabric has a flame resistance.

Assignments (2)
CHANGE OF NAME Recorded Mar 1, 2013
From: SONY CHEMICAL & INFORMATION DEVICE CORPORATION
To: DEXERIALS CORPORATION
Reel/Frame 029908/0665 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 6, 2011
From: TAKAMATSU, HIROSHI; KIMURA, TAKEO
To: SONY CHEMICAL & INFORMATION DEVICE CORPORATION
Reel/Frame 025596/0047 →