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FPC flexible circuit board production process | YMSPCB

Which started out as cardboard (old radio), are now generally FR4 hardboard, and some special boards.

Flexible Printed Circuit (FPC) is a highly reliable and Flexible Printed Circuit board based on polyimide or polyester film.

It has the characteristics of high wiring density, light weight, thin thickness and good bendability.It mainly applies to relatively thin electronic products such as mobile phones, laptops or LCD screens.

https://www.ymspcb.com/2layer-flexible-board-ymspcb-2.html

flex pcb

The core layer of such circuit boards is an ultra-thin polymer film, which is first sandwiched between two copper sheets by a machine.

After the long square slices are cut by the machine, they are separated by laminates and put into a pile.

fpc

Then it is sent to the vacuum pump box to close the layers together, and next it will be sent to the high temperature and pressure box for several hours. Due to the thermal activation adhesive coating on the polymer film in the middle layer, the original three layers will be bonded into a whole.

fpc

This stack is then cut into fixed sized boards and drilled into holes for easy assembly. A fourth layer of light-sensitive film is then glued to the surface of the circuit board by a film adding machine.

SMD inductance

Technicians create an integrated circuit with a computer based on the customer’s needs. The board is then placed in an exposure machine, which controls the machine to scan the photosensitive layer with a laser.

The exposed surface reacts and hardens, protecting the underlying copper layer from pickling.

fpc

After pickling machines have been used to clean areas that have not been exposed to laser light, the remaining copper layer on the polymer film is the original computer-generated integrated circuit.

Then use the sticky dust roller to remove the surface dust, and then put on the fifth layer of insulation.

fpc

Finally, the whole circuit board, separated by plastic paper and laminate, was put into a pile, and then sent to the vacuum pump box to close the layers together, and then sent to the high temperature and pressure box for several hours.

fpc

Once the circuit board is cooled, it can be manually placed into a mold and shaped by a punch a flexible circuit board is completed.

https://www.ymspcb.com/2layer-raised-point-flexible-board-ymspcb.html

flex board pcb

Media Contact
Company Name: Huizhou Yongmingsheng Technology co., ltd.
Contact Person: Joyce
Email: Send Email
Phone: 0086-13902935069
Country: China
Website: https://www.ymspcb.com/


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