FPC (Flexible Printed Circuit) structure and manufacturing method thereof
A production method and double-sided adhesive technology, which is applied in the direction of printed circuit manufacturing, printed circuit parts, electrical components, etc., to achieve the effect of improving the pass rate and ensuring the accuracy of contour dimensions
Active Publication Date: 2016-10-26
SHENZHEN SUNWAY COMM
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is: to provide an FPC structure and its manufacturing method, so that there is double-sided adhesive tape on the back of the protruding strip end, and at the same time, the problems of twisting, wrinkling and screw alignment will not occur.
Method used
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Embodiment
[0080] Please refer to Figures 6a-6e , the method embodiment of the present invention relates to a method for manufacturing an FPC structure,
[0081] S1: if Figure 6a As shown, the first double-sided adhesive tape 4 is pasted on the back of the area where the convex strip-shaped end 1 is formed on the FPC, and the first double-sided adhesive tape 4 is a high-temperature double-sided adhesive tape. Only paste high-temperature double-sided adhesive on the back of the area where the convex strip-shaped end 1 will be formed. When returning to the furnace at a high temperature, since the area of the release paper 8 in this area is small and there are clamps to press it, the release paper 8 shrinks against the FPC body. The effect is minimal.
[0082] S2: if Figure 6b As shown, the die-cut FPC forms a convex strip-shaped end 1 and a base material hole 3 on the convex strip-shaped end. In this embodiment, the outer diameter of the gasket 2 is about the inside diameter of ...
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The invention discloses an FPC (Flexible Printed Circuit) structure and a manufacturing method thereof. The FPC structure comprises an FPC body, a raised-line-shaped tail end and a gasket, wherein the gasket is arranged on the surface of the raised-line-shaped tail end; a back side of the raised-line-shaped tail end is provided with a first double faced adhesive tape; the first double faced adhesive tape is a high-temperature double faced adhesive tape; and a back side of the FPC body is provided with a second double faced adhesive tape. The manufacturing method comprises the following steps: attaching the first double faced adhesive tape to the raised-line-shaped tail end on the back side of the FPC; punching the raised-line-shaped tail end and a substrate hole; treating the gasket by an SMT (Surface Mount Technology); attaching the second double faced adhesive tape to the back side of the FPC body; and lastly, punching the FPC body. Through adoption of the manufacturing method, the double faced adhesive tape is attached to the back side of the raised-line-shaped tail end, so that the FPC is free from wrinkles; a substrate of an FPC profile is free from flanging; the substrate and release paper are free from openings; and the size accuracy of the punched FPC profile is ensured. Moreover, a non-high-temperature double faced adhesive tape can be used, so that the application range of the FPC is enlarged.
Description
technical field [0001] The invention relates to the field of antennas, in particular to an FPC structure and a manufacturing method thereof. Background technique [0002] FPC is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film. It has high wiring density, light weight, thin thickness and good bendability. The characteristics of FPC are used by many companies in their products, so the outline of FPC varies widely. Such as figure 1 As shown, there is a type of FPC with a convex shape on the outer edge, and an SMT (Surface Mount Technology, surface mount) gasket is required on the surface of the convex strip end. If necessary, the gasket also has the function of conducting the FPC and the bracket. The screws pass through the washers to fix the FPC on the bracket. In this way, the connection between the FPC and the bracket is more reliable or the FPC and the bracket are connected. At the same time, if figure 2 As shown, the ...
Claims
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IPC IPC(8): H05K1/02H05K3/00
CPCH05K1/02H05K3/00H05K2201/05
Inventor 梁荣录
Owner SHENZHEN SUNWAY COMM