TH41877B - Flexible circuit board - Google Patents

Abstract

The DC60 was one of the objectives of this invention to provide a flexible circuit board that was flexible while having a high bend resistance. To achieve this objective Flexible circuit boards according to This fabricated is a flexible circuit board with a conductive metal layer with a first surface and a second surface, where the first side of the conductive metal layer contains a resin layer to separate the flexible insulation layer. The first and second surfaces of the conductive metal wire layer contain a second flexible insulator layer. And there is a bend, which is bent so that the first flexible insulating separator resin layer comes inside, where the first resilient insulation separator layer has a main layer which is arranged. Placed in contact with the surface Either side of the conductive metal layer And the thickness from the surface of the conductive metal layer is 13 microns or less. And the mean of Young's modulus within the operating temperature range was 6.4 GPa or more and when {mean of Young's modulus at operating temperature x thickness of the resin layer. For the first flexible insulation of the resin layer for the first flexible insulation in the The bend is denoted by A and {mean value of the young modulus at operating temperature x thickness of the resin layer at Second flexible insulation separator} of a second resilient insulator layer in the bend, represented by B, where A / B = 0.66 to 2.06 is one of the objectives of this invention to provide. It has a flexible circuit board which is flexible while having a high bend resistance. To achieve this objective Flexible circuit boards according to This fabricated is a flexible circuit board with a conductive metal layer with a first surface and a second surface, where the first side of the conductive metal layer contains a resin layer to separate the flexible insulation layer. The first and second surfaces of the conductive metal wire layer contain a second flexible insulator layer. And there is a bend, which is bent so that the first flexible insulating separator resin layer comes inside, where the first resilient insulation separator layer has a main layer which is arranged. Placed in contact with the surface Either side of the conductive metal layer And the thickness from the surface of the conductive metal layer is 13 mu m or less. And the mean of Young modulus within the operating temperature range was 6.4 GPa or more and when {mean of Young's modulus at operating temperature x thickness of the resin layer. For the first flexible insulation of the resin layer for the first flexible insulation in the The bend is denoted by A and {mean value of the young modulus at operating temperature x thickness of the resin layer at Second flexible insulation separator} of a second flexible insulator layer in the bend, represented by B, where A / B = 0.66 to 2.06.

Claims (8)

Disclaimers (all) that will not appear on the advertisement page: 1. A flexible circuit board consisting of a conductive metal layer with a first surface and Second skin The first such surface of the conductive metal layer contains a resin layer for separating. First layer of flexible insulation And that second surface of the conductive metal layer has a resin layer. For separating flexible second layer insulation And there is a bend, which is bent to provide the separator layer The first layer of resilient insulation comes inside, where the first layer of resilient insulating resin layer has a main layer which is positioned to touch. With the surface on either side of the metal conductive layer And thickness from the surface of the cable layer The metal conductive is 13 mu m, and the average of the longitudinal elastic modulus within range The operating temperature was 6.4 GPa or more and when {mean of longitudinal elastic modulus at operating temperature x thickness of the resilient insulation separator layer I} of the resilient insulation separator layer. Get first class The above-mentioned bend is denoted by A and where {mean of longitudinal elastic modulus at operating temperature x thickness of the second flexible insulation layer} of the layer. Second layer resilient insulation separator resin As mentioned in the bend, denoted by B, where A / B = 1.16 to 1.52. 2. Flexible circuit board according to claim 1, where the flexible insulation separator layer one and the resin separating layer at At least one such second layer contains many layers with the required additional materials. 3. Flexible circuit board according to claim 2, where the required additional material is the material. Shielding electromagnetic waves 4. Flexible circuit board according to claim 1, where such a core layer of resilient insulation layer one consists of many layers. 5. Flexible circuit board according to claim 1, where the first flexible insulation separator resin layer and the insulation separator layer at One such second layer is formed by stacking flexible insulating films. On such conductive metal wires with or without glue And the other is the insulation separating layer that protects Surface, which protects the metal conductive layer 6. Flexible circuit board according to claim 2, where the first flexible insulation separator resin layer and the insulation separator resin layer at One such second layer is formed by stacking flexible insulating films. On such conductive metal wires with or without glue And the other is the insulation separating layer that protects Surface, which will protect the metallic conductive layer 7.flexible circuit board According to claim 3, the first flexible insulation separator resin layer and the first flexible insulation separator layer One such second layer is formed by stacking flexible insulating films. On such conductive metal wires with or without glue And the other is the insulation separating layer that protects Surface, which protects the metal conductive layer 8.Flexible circuit board According to claim 4, where the first flexible insulation separator resin layer and the first flexible insulation separator layer One such second layer is formed by stacking flexible insulating films. On such conductive metal wires with or without glue And the other is an insulating layer that protects Surface, which protects the metal conductive layer