Micropearl product line up (Plastic Spacer)Micropearl is uniformly particle size distribution with a spherical particles (beads).
Base technology was cultivated with LCD spacer applications

GAP control adhesive containing uniform particles

Thermosetting adhesive containing ultra high precision spacer particles

1. Characteristics

1The thickness of the adhesive can be precisely controlled

2Effectively maintain the adhesive insulation

3It is conductive to ensure the consistency of adhesive force

2. Applications

  1. Inductors, power supply modules, etc.
    Expected effect: stabilization of inductance
  2. Pressure sensor and fixing chip of acceleration sensor
    Expected effect: increase the sensor sensitivity
  3. Fixing components in the camera module
    Expected effect: Suppression of camera sensor shake
  • Inductor，DC-DC Converter
    Inductor，DC-DC Converter
  • pressure sensor
    Pressure sensor

3. Comparison with current technology

The advantages of our products in gap control

  ・Process reduction (yield improvement)
  ・Stable inductance · Reduce tolerance
  ・Can also be controlled for narrow intervals
  ・Can be used for ferrite cores of various shapes

Comparing to existing construction method

Process

Polishing
  • 1.Polishing
    1.Polishing
  • 2.Thickness
    test
    2.Test the thickness
  • 3.Dispense
    adhesive
    3.Dispense adhesive
  • 4.Bonding
    4.Bonding
  • 5.Hardening
    5.Hardening
Tape
  • 1.Punching
    (die cutting)
    1.Punching
    Manual work
  • 2.Bonding
    by tape
    2.Bonding by tape
    Manual work
  • 3.Dispense
    adhesive
    3.Dispense adhesive
  • 4.Bonding
    4.Bonding
  • 5.Hardening
    5.Hardening
Glass beads
  • 1.Mixing
    1.Mixing
    Required amount
    of adhesive and
    particles need
    to be mixed
    in advance
  • 2.Filling
    　
    2.Filing
  • 3.Dispense
    adhesive
    3.Dispense adhesive
  • 4.Bonding
    4.Bonding
  • 5.Hardening
    5.Hardening
Our products
  • Unnecessary process
  • 1.Dispense
    adhesive
    1.Dispense adhesive
  • 2.Bonding
    2.Bonding
  • 3.Hardening
    3.Hardening

4. Mechanical properties of adhesive
   (Epoxy thermosetting adhesive)

※If you require other resin products,please contact us directly

Items Conditions A02Z A02Y
Color Visual inspection Black Black
Specific gravity 25℃ 1.50 1.60
Viscosity Pa・s 25℃ 30 35
Shear bonding strength Fe-Fe MPa 20 20
Hardness Durometer Type D 90 90
Glass transition temperature tanδ ℃ 130 123
Coefficient of thermal expansion RT∼Tg 1/℃ 33ppm 36ppm
Permittivity 1kHz 4.03 5.1
Dissipation factor 1kHz 0.005 0.005
Particle size 120µm or less 120µm or more
Adhesives Product category

5. Particle sizes selection

Average particle diameter[µm] Cv
10±0.1 5％ or less
15±0.1
20±0.15
25±0.2
30±0.25
50±0.5
75±0.5
100±1
110±1
Average particle diameter[µm] Cv
40±2 7％ or less
50±2.5
60±3
70±3.5
80±4
90±4.5
100±5.5
120±6
130±6.5
140±7.0
150±7.5
160±8.0
170±8.5
180±9.0
190±9.5
200±10