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AI Technology ESP 8350

Tack-Free ESP8350 is a reworkable, silver-filled, epoxy film adhesive. It is designed for bonding component and substrate to a mismatched substrate or carrier. This novel, B-staged electrically conductive adhesive offers excellent reworkability from 80 to 150°C. The dry, tack-free handling of the film makes it suitable for an automated assembly. ESP8350 has excellent thermal conductivity. Its low Tg adhesive imposes minimum thermal stress on bonded parts during thermal cycling or shock testing. This frilm is reinforced with 1.5 mil fiberglass.

Product Type: Conductive Adhesive, Epoxy Adhesive

Application Area: Die/Chip Attach, LEDs

Chemical Family: Epoxy & Epoxy Derivatives

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Features & Benefits

Product Features
  • Stress free.
  • Tack free.
  • Electrically conductive.
  • Epoxy film adhesive.
  • Substrate and component.
  • Reworkability.
  • Mismatched CTE's
  • Automated assemblies.

Applications & Uses

Application Area
Application Procedures
  • Remove film from protective paper
  • Cut to desired size.
  • Place on substrate and cure according to one of the recommended schedules.

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Electrical Resistivity (at 25°C, 1minute)max. 5x10⁻⁴Ω-cm
Glass Transition Temperature-25°C
Device Push Off Strength8.3N/mm²
Hardness82Shore A
Cured Density3.5g/cc
Thermal Conductivity6.4W/m-°C
Coefficeint of Linear Thermal Expansion110ppm/°C
Maximum Continuous Operation Temperature150°C

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Cure Schedules
Temperature Time Pressure
80°C 8 hrs 5 - 10 psi
100°C 4 hrs 5 - 10 psi
125°C 2 hrs 5 - 10 psi
150°C 1 hr 5 - 10 psi

The die or component can also be tacked on the substrate at 80°C or higher with 5 psi. When a filet around the edge of the die or component is observed, the pressure can be released for the rest of the bonding cycle.

Packaging & Availability

Product Availability

ESP8350 is available in sheet sizes or as custom preforms. Standard thicknesses are 0.006" and 0.008" Special thicknesses are available.

Storage & Handling

Shelf Life
1 Year (at 0-5°C)
Storage Information

Storage temperature: 0 - 5°C in sealed and/or protected package.