LOCTITE® ABLESTIK 8008HT
Known as ABLECOAT 8008HT
Features and Benefits
LOCTITE ABLESTIK 8008HT, Proprietary Hybrid Chemistry, Die Attach
LOCTITE® ABLESTIK 8008HT adhesive is designed for high power devices in high UPH environment. It offers a lead-free alternative to soft solder and eutectic and can potentially reduce the layers of backside metallization required. 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 8008HT should be used with a pressure sensitive dicing tape and is not compatible with UV dicing tapes.
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Technical Information
| Applications | Die attach |
| Coefficient of thermal expansion (CTE) | 37.0 ppm/°C |
| Coefficient of thermal expansion (CTE), Above Tg | 62.0 ppm/°C |
| Color | Silver |
| Cure schedule, Snap Cure @ 170.0 °C | 20.0 sec. |
| Cure type | Heat cure |
| Extractable ionic content, Chloride (CI-) | 9.0 ppm |
| Extractable ionic content, Potassium (K+) | 9.0 ppm |
| Extractable ionic content, Sodium (Na+) | 9.0 ppm |
| Glass transition temperature (Tg) | 264.0 °C |
| Hot die shear strength, @ 260.0 °C 2 x 2 mm Si die on Cu LF | 2.6 kg-f |
| RT die shear strength, 2 x 2 mm Si die on Cu leadframe | 6.0 kg-f |
| Tensile modulus, @ 250.0 °C | 2451.0 N/mm² (355340.0 psi ) |
| Thermal conductivity | 11.0 W/mK |
| Thixotropic index | 4.0 |
| Viscosity, Brookfield CP51, @ 25.0 °C Speed 5 rpm | 50000.0 mPa·s (cP) |
| Volume resistivity | 0.00005 Ohm cm |
LOCTITE® ABLESTIK 8008HT
LOCTITE ABLESTIK 8008HT, Proprietary Hybrid Chemistry, Die Attach