Single coated tapes

FPC manufacturing process tapes

Carrier film for electronic components such as FPC. Removability.

  • Product name
    PET8420
  • Features
    • Peeling strength is high before exposure to UV radiation but declines after exposure to UV radiation, allowing easy peeling.
    • Integrating UV light irradiation: cured with 200 to 250 mJ/cm2.

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Structure

Specifications

Product name PET8420
Main component Acrylic base
Carrier About 125µm PET
Color Transparent
Adhesive thickness(µm) About 155
Release film thickness(µm) About 38
Bonding strength(N/20mm) *1 Initial: 4.60 After UV irradiation: 0.05
St'd size(width & length) 250mm x 200m
Warranty period from manufacturing date 8 months
  • *1 180° peeling strength to polyimide

Ideal for carrier tapes used during the shipping and etching and FPC resist processes.

1.Bonding strength before and after UV irradiation (180° peeling)

Test Piece Condition

Substrate:Polyimide film
Tape width:20mm
Bonding condition:One stroke with 2 kg roller
Measuring condition:23°C±5°C 60%±20%RH
Peeling speed:300mm/min

[Left at RT for one hour before measurement]


<UV dosage>
UV light system:Metal halide lamp
Height:250mm
UV irradiation dose:200mJ/cm2 (UV accumulated-light-amount)
* Irradiation on the PET face of test specimen

Results

(N/20mm)

180° peeling strength Product name Measuring condition Bonding strength
PET8420 Initial value 4.60
After UV irradiation 0.05

caution

Note on the characteristic data given - Data on the characteristics of the products described in this page based on the results of evaluations carried out by the company. This does not guarantee that the characteristics of the product conform with your usage environment. Before use, review the usage conditions based on evaluation data obtained from the equipment and substrates actually used.

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