FPC manufacturing process tapes
Carrier film for electronic components such as FPCs, whose adhesive power is decreased by UV irradiation
Products Category Single coated tapes
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Comparison
PET8420
Product Name
 PET8420

Suitable use

 Carrier film for FPC

Application

 Computers / AV / Cellular phones

Features
  • Carrier film for electronic components such as FPCs. Adhesive strength can be reduced by UV irradiation.
   

Structure

Specification
Product Name PET8420
Main component Acrylic base
Carrier 125 µmPET
Color Transparent
Adhesive thickness(µm) About 155
Release film thickness(µm) About 38
Bonding strength(N/20mm) Initial 4.59, 0.03 after UV dosing
St'd size (width & length) 250mm x 200m

Application Example
Application Example:PET8420 Carrier film for FPC
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Technical Data
1. Bonding strength before and after UV irradiation and after heating (180°peeling)
180°peeling strength test
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
Peel speed: 300mm/min
  • [Left at RT for one hour before measurement]

<UV dosage>
UV light system: UVC-2533/1MNL (metal halide lamp), USHIO Inc.
Switching of erectric power: 120w/cm
Height: 250mm
Quantity of irradiation: 200 to 250 (setting value = 210) mJ/cm²
* Irradiation on the PET face of test specimen
UV irradiation plus heating
* Test specimen treated with UV irradiation under the above conditions is heated under the following conditions.
110°C , 30 min+RT , 5min+80°C , 5 min+RT , 5 min+80°C , 5 min
Results

2. UV accumulated -light-amount and Bonding strength (180°peeling)
180°Peeling strength test
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
Peel speed: 300mm/min
  • [Left at RT for one hour before measurement]
Results
UV accumulated-light-amount(mJ/cm²) Peeling strength(N/20mm)
150 0.03
200 0.04
350 0.04
1000 0.04
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caution The technical data in this document, which was acquired based on reliable tests, does not guarantee full performance as per the documentation in any instance. Users assume total responsibility and risk for use of this product for any purpose under any usage conditions.