Applications

LOCTITE® ABLESTIK 8200T – Die attach adhesive – Electrically conductive bonding for QFN packages with Ag-plated leadframes

  • Item Name: LOCTITE ABLESTIK 8200T
  • Manufacturer: Henkel
  • Product Category: Electrically Conductive Die Attach Adhesive
  • Technologies: Proprietary Hybrid Chemistry
  • Applications: Die attach for electronic packages (e.g., bonding PPF and silver substrates, improved JEDEC performance on QFN type packages)
  • Color: Silver
  • Cure Type: Heat cure
  • Package Size: Contact Techniq VN for details
  • Shelf Life: 12 months

1. Product Overview

LOCTITE ABLESTIK 8200T is an electrically conductive die attach adhesive designed for high-reliability package applications. It features:

  • Technology: Proprietary Hybrid Chemistry
  • Appearance: Silver
  • Cure Method: Heat cure
  • Key Benefits:
    • Excellent adhesion to Ag-plated lead frames
    • Oven curable & snap curable
    • Low bleed

2. Applications

  • Application Type: Die attach
  • Key Substrates: PPF and silver-plated surfaces
  • Industries: Semiconductor packaging, QFN-type packages requiring improved JEDEC performance

3. Typical Properties

Uncured Properties

Property Value
Thixotropic Index (0.5/5 rpm) 4.8
Viscosity (Brookfield CP51, 5 rpm, 25°C) 9,000 mPa·s (cP)
Work Life @ 25°C 24 hours
Shelf Life @ -40°C 365 days

Curing Performance

  • Standard Cure: 30 min ramp to 175°C + 15 min @ 175°C
  • Recommended Snap Cure: 3 minutes @ 220°C (N2 flow: 20 L/min)

Cured Properties

Property Value
Physical Properties
Coefficient of Thermal Expansion (CTE) Below Tg: 61 ppm/°C, Above Tg: 195 ppm/°C
Glass Transition Temperature (Tg) 241°C
Thermal Conductivity 2.5 W/m-K
Moisture Absorption (@ 85°C/85% RH) 0.3%
Mechanical Properties (Tensile Modulus, DMTA)
@ -65°C 9,356 N/mm² (1,356,973 psi)
@ 25°C 7,840 N/mm² (1,137,096 psi)
@ 100°C 6,337 N/mm² (919,104 psi)
@ 150°C 5,092 N/mm² (738,532 psi)
@ 200°C 3,356 N/mm² (486,746 psi)
@ 250°C 2,921 N/mm² (423,655 psi)
@ 300°C 4,345 N/mm² (630,189 psi)
Electrical Properties
Volume Resistivity 0.0001 ohm·cm

Performance Data

Test Result
Die Shear Strength (3×3 mm Si die on Ag/Cu leadframe) @ 25°C: 10 kg-f, @ 200°C: 7 kg-f, @ 250°C: 5.5 kg-f
Weight Loss on Cure 7.0%

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