Henkel Loctite® ABLESTIK 8008 Adhesive

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Henkel Loctite® ABLESTIK 8008 Adhesive
Categories:	Polymer; Adhesive
Material Notes:	Appearance: Silver Product Benefits: Electrically conductive Snap curable after B-stage High adhesion to metal leadframe surface Excellent printing and low surface roughness No voiding after cure Cure: Heat cure Application: Die attach LOCTITE ABLESTIK 8008 snap curable adhesive is designed for small die sizes (<3mm). It exhibits moderate electrical and thermal conductivity. This material can be applied to a wafer backside by stencil printing and then B-staged in an oven. The adhesive can then be cured after die attach in an in-line process exhibiting a consistent, void-free bondline without bleed. LOCTITE ABLESTIK 8008 should be used with a pressure sensitive dicing tape and is not compatible with UV dicing tapes. Information provided by Loctite®
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Physical Properties	Original Value	Comments

pH	4.7
Brookfield Viscosity	48000 cP	Uncured, CP51, Speed 5 rpm

Mechanical Properties	Original Value	Comments
Tensile Modulus	1800 MPa @Temperature 250 °C	Cured, DMTA
	2521 MPa @Temperature 200 °C	Cured, DMTA
	3161 MPa @Temperature 150 °C	Cured, DMTA
	5451 MPa @Temperature 25.0 °C	Cured, DMTA
	8442 MPa @Temperature -65.0 °C	Cured, DMTA

Electrical Properties	Original Value	Comments
Volume Resistivity	0.00010 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	42.0 µm/m-°C	Cured, Below Tg
	67.0 µm/m-°C	Cured, Above Tg
Thermal Conductivity	2.20 W/m-K	Cured
Glass Transition Temp, Tg	270 °C	Cured, TMA

Processing Properties	Original Value	Comments
Cure Time	30.0 min	ramp to 175°C + 60 minutes @ 175°C
	0.330 min @Temperature 280 °C	Alternate Snap Cure Condition
	1.00 min @Temperature 230 °C	Recommended Snap Cure Condition
Working Life	24.0 hour
Shelf Life	12.0 Month @Temperature -40.0 °C	Uncured, from date of manufacture

Descriptive Properties
Shear Strength	2.6 kg-f	Die, 2 x 2 mm Si die on Ag/Cu LF @ 260°C
	6 kg-f	Die, 2 x 2 mm Si die on Ag/Cu LF @ 25°C
Thixotropic Index	2.6	Uncured, 0.5/5 rpm
Water Extract Conductivity	45 µmhos/cm	Cured

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PLOCT5023 / 255234

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