Unlock instant, AI-driven research and patent intelligence for your innovation.

Flexural fatigue resistant ribbon transmission line and manufacturing process thereof

A strip transmission line, flexural fatigue technology, applied in the direction of printed circuit parts, electrical components, printed circuits, etc., to achieve the effect of high flexural fatigue resistance

Active Publication Date: 2019-08-09
SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing flexible printed circuit board strip transmission line is dynamically bent hundreds of thousands of times with communication equipment, and its fatigue resistance is extremely challenging

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flexural fatigue resistant ribbon transmission line and manufacturing process thereof
  • Flexural fatigue resistant ribbon transmission line and manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] reference figure 1 with figure 2 , A flexural fatigue resistant belt-shaped transmission line, comprising an upper protective film 1, an upper ground layer 2, an upper composite metal layer 3, an upper insulating dielectric layer 4, a middle composite metal layer 5, a lower insulating dielectric layer 6, and a lower composite metal layer 7. Lower ground layer 8 and lower protective film 9, upper protective film 1, upper ground layer 2, upper composite metal layer 3, upper insulating dielectric layer 4, middle composite metal layer 5, lower insulating dielectric layer 6, lower composite metal layer 7. The lower ground layer 8 and the lower protective film 9 are sequentially laminated in order to form a belt-shaped transmission line. A metal circuit is formed on the middle composite metal layer 5, and the metal circuit includes a high-frequency signal line 14, a ground layer 15, a high-speed signal line 16 and a ground line 17. The upper insulating dielectric layer 4 and...

Embodiment 2

[0035] reference figure 1 with figure 2 , A process for manufacturing a flex fatigue-resistant ribbon transmission line, including the following steps:

[0036] S1. Provide a medium composite metal layer 5 with a ground layer 15, a high-frequency signal line 14, a high-speed signal line 16 and a ground line 17;

[0037] S2. First use glue or low melting point PEEK film to connect one side of the lower insulating dielectric layer 6 and the middle composite metal layer 5 into a whole by hot pressing, and the upper insulating dielectric layer 4 and the other side of the middle composite metal layer 5 are heated. Compression-connected into one body, the middle composite metal layer 5 is covered;

[0038] S3. Select laser ablation of the set positions of the upper insulating dielectric layer 4 and the lower insulating dielectric layer 6 to form the via hole 10, and clean the via hole 10 with plasma;

[0039] S4. The other side of the upper insulating dielectric layer 4 is first covered w...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a flexural fatigue resistant ribbon transmission line which comprises an upper protective film, an upper grounding layer, an upper composite metal layer, an upper insulating dielectric layer, a medium composite metal layer, a lower insulating dielectric layer, a lower composite metal layer, a lower grounding layer and a lower protective film, wherein the upper protective film, the upper grounding layer, the upper composite metal layer, the upper insulating dielectric layer, the medium composite metal layer, the lower insulating dielectric layer, the lower composite metal layer, the lower grounding layer and the lower protective film are successively laminated. A metal line is formed on the medium composite metal layer. The metal line comprises a grounding layer. Theupper composite metal layer and the lower composite metal layer are electrically connected with the grounding layer through via holes in the upper insulating dielectric layer and the lower insulatingdielectric layer. The upper grounding layer is electrically connected with the upper composite metal layer. The lower grounding layer is electrically connected with the lower composite metal layer. Accordingly, the invention further discloses a manufacturing process of the flexural fatigue resistant ribbon transmission line. The ribbon transmission line has higher flexural fatigue resistance under the condition of the same thickness of the existing flexible printed circuit board ribbon transmission line, and is suitable for flexing deformation to cope with dynamic bending of a device.

Description

Technical field [0001] The invention relates to a mobile phone with a bendable screen, in particular to a flexural fatigue resistant belt-shaped transmission line and its manufacturing process. Background technique [0002] The existing flexible printed circuit board ribbon transmission line is dynamically bent hundreds of thousands of times with the communication equipment, and its fatigue resistance is extremely challenging. For the ribbon transmission line corresponding to the new flexible screen mobile phone in the market, a new printed circuit board type ribbon line laminate structure and its manufacturing process need to be proposed to meet the demand for hundreds of thousands of bending times of the flexible screen. Summary of the invention [0003] Aiming at the flexural fatigue problem of the belt-shaped transmission line corresponding to the bendable screen mobile phone, the present invention provides a flexural fatigue-resistant belt-shaped transmission line and its man...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02
CPCH05K1/0242
Inventor 满方明
Owner SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD