FPC and wearable device
By adding a 75um thickness reinforcement piece to the FPC, the machine patching problem caused by insufficient thickness of PI reinforcement plate in existing FPCs is solved, and higher adhesion yield and product reliability are achieved, and production costs are reduced.
CN222827421UActive Publication Date: 2025-05-02TRULY OPTO ELECTRONICS
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Patent Information
- Application Number
- CN202421455100.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-24
AI Technical Summary
Technical Problem
The thickness of the PI reinforcement plate in the existing FPC is insufficient, resulting in poor machine sticking during the production process, low yield, and it is difficult to fully automatic bonding and connection through automated equipment.
Method used
A 75um thickness reinforcement piece is provided on the opposite side of the FPC body away from the gold finger to enhance the hardness of the gold finger, allowing it to be fully automatic bonded and connected through an automated device.
Benefits of technology
By increasing the thickness of the reinforcement sheet, the FPC adhesion yield is improved, the product reliability is enhanced, and the production cost is reduced.
✦ Generated by Eureka AI based on patent content.
Smart Images

Figure CN222827421U_ABST
Abstract
The utility model discloses an FPC (Flexible Printed Circuit), which comprises an FPC body and a reinforcing sheet, the FPC body is provided with a component area and a golden finger, the golden finger is used for wiring, the FPC body is hollowed out by 0.15 [mu] m on the opposite side of the golden finger, the reinforcing sheet is arranged on the side, far away from the golden finger, of the FPC body, the reinforcing sheet is used for reinforcing the golden finger, the thickness of the reinforcing sheet is 75 [mu] m, and the thickness of the reinforcing sheet is 10 [mu] m. And the component area is used for welding components. The opposite side, far away from the golden finger, of the FPC body is provided with the reinforcing sheet, while in the prior art, the thickness of the reinforcing sheet is 50 [mu] m, and the strength of the FPC body is weak, the thickness of the reinforcing sheet is set to be 75 [mu] m, so that the overall hardness of the golden finger is sufficient, full-automatic fitting connection can be carried out through automation equipment, the fitting yield of the FPC is improved, and the production cost is reduced. Therefore, the product reliability is improved, and the production cost is reduced. In addition, the utility model further relates to a wearable device.
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