ABLESTIK 967-3

Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other

ABLESTIK 967-3

Main features

  • 2 x 10^13 ohm-cm Volume Resistivity
  • 6-Hour 65 deg C Cure
  • 1:1 Meter-Mix Processing

Product Description

LOCTITE® ABLESTIK 967-3 is a two-component, electrically insulating epoxy adhesive developed for die-attach applications requiring lower-than-normal cure temperatures. The brownish-gray material mixes at 1:1 by weight and can be applied by automatic dispensing, screen printing, or hand probe. It provides a typical viscosity of 7,000 mPa·s at 25°C and a two-day work life at 25°C. Guideline heat-cure options include 6 hours at 65°C or 30 minutes at 150°C, while typical cured properties include thermal conductivity of 0.7 W/(m·K), volume resistivity of 2 × 1013 ohm-cm, and a glass-transition temperature of 85°C.

Key features

  • Low-temperature die-attach cure: An alternative guideline cure schedule of 6 hours at 65°C supports assemblies requiring reduced cure temperature.
  • Electrically insulating: Typical cured volume resistivity is 2 × 1013 ohm-cm, with a dielectric constant of 4.3 at 1 kHz.
  • Flexible application methods: Suitable for automatic dispensing, screen printing, and hand-probe application.

Applications / Suitable for

  • Die-attach applications
  • Assemblies requiring lower-temperature heat cure
  • Automatic dispensing
  • Screen-printing and hand-probe application
Product Family

ABLESTIK 967-3

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Brownish Grey
Chemistry Type
Epoxy
Mix Ratio
The amount of a constituent divided by the total amount of all other constituents in a mixture
1 : 1
Work life @25°C
Work life is the amount of time we have to work with a material until it is no longer able to be easily worked and applied on a substrate. It is based on the change in viscosity and it can rely on the application requirements.
48 hours
Thermal Properties
Glass Transition Temperature (Tg)
The glass transition temperature for organic adhesives is a temperature region where the polymers change from glassy and brittle to soft and rubbery. Increasing the temperature further continues the softening process as the viscosity drops too. Temperatures between the glass transition temperature and below the decomposition point of the adhesive are the best region for bonding. The glass-transition temperature Tg of a material characterizes the range of temperatures over which this glass transition occurs.
85 °C
Thermal Conductivity
Thermal conductivity describes the ability of a material to conduct heat. It is required by power packages in order to dissipate heat and maintain stable electrical performance. Thermal conductivity units are [W/(m K)] in the SI system and [Btu/(hr ft °F)] in the Imperial system.
0.7 W/m.K
Electrical Properties
Volume Resistivity
Volume resistivity, also called volume resistance, bulk resistance or bulk resistivity is a thickness dependent measurement of the resistivity of a material perpendicular to the plane of the surface.
2×10¹³ Ohms⋅cm
Physical Properties
Viscosity
Viscosity is a measurement of a fluid’s resistance to flow. Viscosity is commonly measured in centiPoise (cP). One cP is defined as the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP. A product like honey would have a much higher viscosity -around 10,000 cPs- compared to water. As a result, honey would flow much slower out of a tipped glass than water would. The viscosity of a material can be decreased with an increase in temperature in order to better suit an application
7000 mPa.s

Additional Information

Technical properties

As-supplied / before-processing properties

Typical properties, storage conditions, and guideline cure schedules for the adhesive before final processing.

Property Value Unit Method / condition
Technology Epoxy — Two-component adhesive
Appearance Brownish gray — TDS description
Mix ratio — Part A:Part B 1:1 by weight Equal weights of Parts A and B
Viscosity 7,000 mPa·s (cP) At 25°C; method not stated
Specific gravity 1.7 — SDS physical-property value
Work life 2 days At 25°C
Shelf life — two-component kit 365 days At 5°C, from date of manufacture
Shelf life — two-component kit 183 days At 25°C, from date of manufacture
Shelf life — premixed frozen 365 days At -40°C, from date of manufacture
Cure schedule 30 minutes or 6 hours — 30 minutes at 150°C or 6 hours at 65°C; guideline recommendations
Technical properties

After-processing / final-state properties

Typical cured-material properties and die-attach performance. Values are reference data and are not product specifications.

Property Value Unit Method / condition
Glass-transition temperature 85 °C TMA; cure condition not stated
Thermal conductivity at 121°C 0.7 W/(m·K) Test method, bondline thickness, and orientation not stated
Extractable chloride ≤300 ppm Extractable ionic content; method not stated
Extractable sodium ≤10 ppm Extractable ionic content; method not stated
Extractable potassium ≤30 ppm Extractable ionic content; method not stated
Water-extract conductivity 80 µmhos/cm Test method and extraction conditions not stated
Volume resistivity 2 × 1013 ohm-cm Test method and cure condition not stated
Dielectric constant 4.3 — At 1 kHz
Dissipation factor 0.025 — At 1 kHz
Die shear strength — 2 × 2 mm gold die on gold substrate 11 kg-f Tested at 25°C; cure condition and test method not stated
Lap shear strength — 2 × 2 mm aluminum on aluminum substrate ≥1,700 psi Tested at 25°C; cure condition and test method not stated

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