Metal foil type tapes
Single coated tapes developed for EMI shield and countermeasure against static electricity.
Products Category Single coated tapes
Please select the product name : Comparison
CU7040

Product Name

 CU7040

Suitable use

 Shield

Application

 Computers / AV / Cellular phones

Features
  • Adhesive coated on 35 µm electrolysis copper foil
  • Solderable for grounding
 
   

Structure

Specification
Structure
Product Name CU7040
Main component Acrylic base
Carrier 35 µm Electrolysis copper foil
Color Copper
Adhesive thickness(µm) About 85
Release paper thickness(µm) About 115
Bonding strength(N/20mm) 20
St'd size (width & length) 500mm x 50m

Application Example
Application Example:CU7040 Shields and photothermal reflection for digital devices such as cellular phones, PDAs, digital still cameras, camcorders, computers, and game machines.
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Technical Data

1. Shielding effects and properties  
Test Piece Condition
Shielding effects of the product under a magnetic or electric field were measured using a device for measuring electromagnetic wave shielding effect (the KEC method). 
Results
  30MHz 100MHz 300MHz
Shielding effect under an electric field 64 87 86
Shielding effect under a magnetic field 71 68 70
2. Bonding strength at different temperatures (180°peeling) 180°peeling strength test
Test Piece Condition
Substrate: Stainless steel plate (SUS304)
Tape width: 20mm
Bonding condition: One stroke with 2-kg roller
Peel speed: 300mm/min
  • [Left at RT for one hour and then at each temperature for 30 minutes before measurement]
Results
3. Reliability of bonding strength after adhesion under different conditions (180°peeling)
180°peeling strength test
Test Piece Condition
Substrate: Stainless steel plate (SUS304)
Tape width: 20mm
Bonding condition: One stroke with 2-kg roller
Peel speed: 300mm/min
  • [Left at RT for one hour and aged under each test condition before measurement]
Results
4. Bonding strength after heat cycle test (180°peeling) 180°peeling strength test
Test Piece Condition
Substrate: Stainless steel plate (SUS304)
Tape width: 20mm
Bonding condition: One stroke with 2-kg roller
Measuring condition: 23±5°C,
60%±20%RH
Peel speed: 300mm/min
   
  • [A test specimen was left at RT for one hour, and a heat cycle test was conducted under the following conditions.
    -20°C × 3 hrs ⇔ 25°C × 15 min ⇔ 70°C × 3 hrs ⇔ 25°C × 15 min
    These conditions comprise one cycle. One to three cycles were conducted for each specimen.]
Results
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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.