Flexible circuit boards are characterized by thin and thin, so they can be easily beaten, folded, and scarred in the process of use. Small mechanical strength, easy to crack. Joint is the purpose of reinforcing material (stiffener) in order to strengthen the mechanical strength of FPC, convenient surface mounted parts, such as reinforcing the type of film, different according to the requirements of the products, mainly have a PET, PI, back glue, metal or resin reinforcement plate and so on.

First, strengthen the main process

Two, complementary strong attach

Heat pressure strength: at a certain temperature, the hot hardened glue of the film will begin to melt and the film will be glued to the product.

Sensitive reinforcement: without heating, the reinforcement can be adhered to the product.

Third, the complementary pressure is combined

Heat pressure strengthening: using high temperature to melt the heat-hardened glue of film, and use the appropriate pressure or vacuum to make the film close to the product.

Pressure strengthening: no need to heat, the product is pressed by the cold press

Four, curing

For hot pressing sex reinforcing: smaller pressure of timeliness, time is short, reinforcing heat curing glue not aging, need to after baked in high temperature for a long time and make the glue completely aging, increase the adhesion of reinforcement and products.

5, use equipment introduction

Refrigerating cabinet: keep the reefer film to be refrigerated

The prepress (C/F sticking machine) : applied to the thermocompression film

The manual bonding tool: the laminated cold press film

Vacuum machine: press the finishing product of the heat pressure supplement

.80 tons fast pressing machine: it is combined with the thin heat pressure of PI class

Cold press: press the cold pressure reinforcement

Ovens: hot pressed and pressed finish products

6, use the treatment tool introduction

"The pre-sticker:

Low positioning PIN:

Stiffener Film

The mechanical strength of the FPC, which is convenient for surface loading. The common thickness is 5mil and 9mil.

The following agent: it is a kind of heat-hardened glue or the pressure glue, the thickness depends on the customer's request.

Off-form paper: avoid the addition of the adhesive before pressing.

The film is required to be refrigerated on the material card

Low cold storage temperature: 1 ~ 9 ℃, refrigerated condition 3 months shelf life

Don't store more than 8 hours at room temperature