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Bondline 6905 is a combination flux and underfill epoxy encapsulant. After solder reflow the gelled underfill epoxy is post cured at 150-160°C for 90-120 minutes. It’s low extractable ions make it suitable for flip chip on-board (FCOB) and chip scale packages (CSP’s). Stable to 250°C, weight loss starts at 270°C.

Product Type: Encapsulant, Potting Compound

Chemical Family: Epoxy & Epoxy Derivatives

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Knowde Enhanced TDS

Identification & Functionality

Features & Benefits

Ready-to-Use Product Features

Applications & Uses

Applications

APPLICATION

Check the work life of the adhesive, on the technical data sheet. Adhesives must be used within its work life .Ihe adhesives properties will change it it is used past the allowable work lite. Apply adhesive using dispensing equipment of choice.

CURE

Choose a Cure Option (time & temperature) from the Bondline technical data sheet. Preheat the oven to the temperature of the selected cure option. For optimum cure, do not deviate from the selected cure option. Be sure to allow additional time for holding fixtures to reach cure temperature. Avoid opening oven doors during cure. Large fixtures and/or multiple fixtures may require extended cure time.

Properties

Adhesive Properties
ValueUnitsTest Method / Conditions
Viscosity260000.0cps-
Work Life (25°C)2.0days-
Hardness88.0Shore D-
Service Temperature Range-55 to 200°C-
Lap Shear Strength (25°C, Al to Al )3200.0psi-
Specific Gravity1.37--
Weight Loss (105°C)Nil%-
Weight Loss (TGA, 200°C)Nil%-
Glass Transition Temperature (Tg)128.0°C-
Coefficient of Thermal Expansion (Below Tg)48 x 10⁻⁶in/in/°C-
Coefficient of Thermal Expansion (Above Tg)146 x 10⁻⁶in/in/°C-
Mobile lon Concentration (Chloride)50.0ppm-
Mobile lon Concentration (Sodium)20.0ppm-
Mobile lon Concentration (Potassium)Nilppm-

Safety & Health

Safety

Always wear protective gloves and goggles while handling adhesives. Only work with adhesives in well-ventilated areas, with curing ovens vented outside. For industrial use only.

Packaging & Availability

Availability

Net volume 1cc to 10cc, available in disposable 3cc, 5cc& 10cc syringes.

Storage & Handling

Shelf Life
1 (-40°C or Colder)
Storage & Handling

GENERAL INSTRUCTIONS FOR ADHESIVE STORAGE/ USE

FROZEN STORAGE

This adhesive must be stored at (minus) –40°C (°F) or colder at all times. Storing this adhesive at temperatures warmer than (minus) –40°C (°F) will shorten its work life.

DO NOT RE-FREEZE adhesive that has already been thawed

THAWING PROCESS

Remove frozen syringe from freezer. Place in vertical position with lure lock end pointed down during thaw. Adhesive must reach room temperature before use. See chart below based on syringe size.

SYRINGE SIZE THAW TIME
1cc 5 minutes
3cc 10 minutes
5cc 15 minutes
10cc 20 minutes