Applications

LOCTITE® ABLESTIK ICP 4000 – Electrically conductive adhesive for die attach in power and microelectronic devices

  • Item Name: LOCTITE ABLESTIK ICP 4000
  • Manufacturer: Henkel
  • Product Category: Electrically Conductive Adhesive
  • Technologies: Silicone-based, one-component, electrically conductive, high flexibility
  • Applications: Mounting small components to various interconnect substrates, high-temperature applications
  • Color: Silver
  • Cure Type: Heat cure (1 hour @ 130°C or 35 minutes @ 140°C)
  • Package Size: Contact Techniq VN for details.
  • Shelf Life: 4 months (-40°C) / 2 days (25°C)

1. Product Overview

LOCTITE ABLESTIK ICP 4000 is a one-component, silicone-based, electrically conductive adhesive designed for applications requiring high flexibility and excellent conductivity. It offers:

  • High temperature performance (up to 200°C)
  • Pb-free alternative to solder
  • High electrical current carrying capability

2. Applications

  • Used for mounting small components on various interconnect substrates
  • Suitable for applications where both electrical conductivity and flexibility are required
  • Compatible with time-pressure and auger valve dispensing, as well as pin-transfer application

3. Typical Properties

Property Value
Uncured Properties
Appearance Silver
Viscosity @ 25°C 30,000 mPa∙s (cP)
Density 4.0 g/cm³
Shelf Life @ -40°C 4 months
Shelf Life @ 25°C 2 days
Curing Performance
Cure Time @ 130°C 1 hour
Cure Time @ 140°C 35 minutes
Cured Properties
Elongation (200μm film) 450%
Young’s Modulus @ 0°C 75 N/mm² (10,877 psi)
Coefficient of Thermal Expansion 330 µm/m.°C
Glass Transition Temperature -45°C
Weight Loss During Cure 0.87%
Electrical Properties
Volume Resistivity 6×10⁻⁵ ohm-cm
Electrical Current Carrying Capability 70 A/mm²
Performance
Die Shear Strength (Si to Ag-plated Cu L/F, 2×2 mm) 450 g

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